CN218670198U - Bottom bearing structure and stirrer - Google Patents
Bottom bearing structure and stirrer Download PDFInfo
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- CN218670198U CN218670198U CN202222599994.6U CN202222599994U CN218670198U CN 218670198 U CN218670198 U CN 218670198U CN 202222599994 U CN202222599994 U CN 202222599994U CN 218670198 U CN218670198 U CN 218670198U
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Abstract
The utility model provides a bottom bearing structure and a stirrer, wherein the bottom bearing structure comprises a bush, a shaft sleeve and a bearing seat, the shaft sleeve is fixedly sleeved outside a stirring shaft, the shaft sleeve is sleeved in the bush, and the shaft sleeve can rotate along the axis in the extending direction of the shaft sleeve relative to the bush; the bearing block is sleeved outside the bushing, the bearing block is connected with the bushing through a spherical transmission mechanism, the spherical transmission mechanism is used for enabling the bushing to swing relative to the bearing block, and the spherical transmission mechanism is further used for limiting the bushing to rotate relative to the bearing block along the axis in the extending direction of the shaft sleeve. The utility model discloses a set up spherical drive mechanism between bearing frame and bush, the bush can swing bearing frame relatively when operation for the end bearing can dynamically follow the off-centre of (mixing) shaft, avoids the extra wearing and tearing of bush, prolongs the life-span of end bearing, and the economic loss that the device shut down and lead to when reducing end bearing and changing.
Description
Technical Field
The embodiment of the utility model provides a relate to chemical industry, pharmacy technical field, in particular to end bearing structure and agitator.
Background
The bottom bearing widely exists in the agitator that chemical industry, pharmacy field used for the agitator bottom provides the (mixing) shaft support when the (mixing) shaft is longer, avoids shafting vibration too big. The traditional bottom shaft uses a shaft sleeve bushing to form a sliding structure, so that the axial movement of the stirring shaft can be allowed, and the radial swinging can be prevented. However, when the blades are in operation, dynamic swing caused by fluid impact force exists at the same time, bending and angle eccentricity of the stirring shaft are caused, and the blades are particularly serious when the shaft system is long, so that the lining can be abraded in an accelerated manner, and the service life of the bottom bearing is shortened.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a bottom bearing structure and agitator aims at solving the dynamic swing of the (mixing) shaft in the current agitator and can wear the bush with higher speed, reduces the problem in bottom bearing life-span.
In order to solve the above technical problem, an embodiment of the present invention provides a bottom bearing structure, including:
a bushing;
the shaft sleeve is fixedly sleeved outside the stirring shaft, sleeved in the bushing and capable of rotating along an axis in the extension direction of the shaft sleeve relative to the bushing; and the number of the first and second groups,
the bearing seat is sleeved outside the bushing and connected with the bushing through a spherical transmission mechanism, the spherical transmission mechanism is used for enabling the bushing to swing relative to the bearing seat, and the spherical transmission mechanism is further used for limiting the bushing to rotate relative to the bearing seat along the axis in the extending direction of the shaft sleeve.
The utility model discloses a set up spherical drive mechanism between bearing frame and bush, the bush can swing bearing frame relatively when operation for the eccentric center of (mixing) shaft can be followed to the end bearing developments, avoids the extra wearing and tearing of bush, prolongs the life-span of end bearing, and the economic loss that the device shut down and lead to when reducing end bearing and changing.
Preferably, in the bottom bearing structure, the spherical transmission mechanism includes a bushing seat, the bushing seat is fixedly sleeved outside the bushing, the bearing seat is sleeved outside the bushing seat, one of an inner side surface of the bearing seat and an outer side surface of the bushing seat forms a convex spherical surface, and the other forms a concave spherical surface matched with the convex spherical surface.
Preferably, in the bottom bearing structure, one of the convex spherical surface and the concave spherical surface is convexly provided with a limiting protrusion, and the other one is provided with a limiting groove extending along the swinging direction of the bushing, and the limiting protrusion extends into the limiting groove to limit the bushing seat from rotating relative to the bearing seat along the axis in the extending direction of the bushing.
Preferably, in the bottom bearing structure, a plurality of limiting protrusions and a plurality of limiting grooves are arranged in a one-to-one correspondence manner along the circumferential direction of the shaft sleeve.
Preferably, in the bottom bearing structure, one of the bearing seat and the bushing seat, which is provided with the limiting protrusion, is provided with a limiting screw connector, and the head of the limiting screw connector forms the limiting protrusion.
Preferably, in the bottom bearing structure, the limit groove penetrates through one of the bearing seat and the bushing seat in the swinging direction of the bushing, and the limit groove is provided in the bearing seat and the bushing seat.
Preferably, in the bottom bearing structure, one of the inner side surface of the bearing seat and the outer side surface of the bushing seat is convexly provided with an annular protrusion extending along the circumferential direction of the bushing, and the annular protrusion is formed with the convex spherical surface.
Preferably, in the bottom bearing structure, the bushing seat is provided with a mounting groove, the bushing is arranged in the mounting groove, a first pressing plate is detachably arranged at a notch of the mounting groove, and the first pressing plate abuts against an end face of one end of the bushing, which is far away from the bottom of the mounting groove.
Preferably, in the bottom bearing structure, a limit surface facing the shaft sleeve is arranged on the outer side surface of the stirring shaft, the limit surface abuts against the end surface of one end of the shaft sleeve, a second pressing plate is detachably arranged on the end surface of the stirring shaft, and the second pressing plate abuts against the end surface of one end, away from the limit surface, of the shaft sleeve.
Preferably, in the bottom bearing structure, the sleeve is slidable relative to the bush along a direction in which the sleeve extends.
Preferably, in the bottom bearing structure, the bottom bearing structure further comprises a base plate, the bearing seat is disposed on the base plate, and the bottom of the base plate is provided with a support leg.
Preferably, in the bottom bearing structure, the base plate is provided with a mounting hole, and the bearing seat is disposed at the mounting hole.
Preferably, in the bottom bearing structure, the support legs are provided in plurality at intervals along a circumferential direction of the base plate.
In order to achieve the above object, the present invention also provides a stirrer, which comprises the above bottom bearing structure.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a bottom bearing structure in an embodiment of the present invention;
fig. 2 is a schematic structural view of the stirring shaft in fig. 1 in an eccentric state.
The utility model discloses the drawing reference number explains:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
54 | Limit screw connector |
| 1 | |
55 | Annular protrusion |
| 2 | |
56 | Mounting groove |
| 3 | Stirring shaft | 6 | A first pressing plate |
| 4 | Bearing seat | 7 | Second press plate |
| 5 | Spherical |
8 | |
| 51 | |
81 | Supporting |
| 52 | Spacing protrusion | 82 | |
| 53 | Limiting groove | 9 | Fastening piece |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
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 creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a bottom bearing structure, this bottom bearing structure can be applied to the agitator that fields such as chemical industry, pharmacy used, and bottom bearing structure can be used for the agitator bottom to provide the (mixing) shaft and support, and fig. 1 and fig. 2 show the utility model provides a bottom bearing structure's a preferred embodiment.
Referring to fig. 1 and fig. 2, in the present embodiment, the bottom bearing structure 100 includes a bushing 1, a shaft sleeve 2, and a bearing seat 4, the shaft sleeve 2 is used for being fixedly sleeved outside the stirring shaft 3, the shaft sleeve 2 is sleeved inside the bushing 1, and the shaft sleeve 2 can rotate along an axis of the shaft sleeve 2 in the extending direction relative to the bushing 1; bearing frame 4 cup joints outside bush 1, and bearing frame 4 is connected through spherical drive mechanism 5 with bush 1, and spherical drive mechanism 5 is used for making bush 1 can swing relative to bearing frame 4 to spherical drive mechanism 5 still is used for restricting bush 1 and rotates along the axis on the axle sleeve 2 extending direction relative to bearing frame 4.
Specifically, the stirring shaft 3 may be a part of the bottom bearing structure 100, and the stirring shaft 3 may also be a part not belonging to the bottom bearing structure 100, and the following description will take an example in which the stirring shaft 3 belongs to a part of the bottom bearing structure 100. The one end of (mixing) shaft 3 in the axial is connected with drive arrangement power coupling such as motor, and axle sleeve 2 is fixed cup joints in the one end of (mixing) shaft 3 keeping away from drive arrangement in the axial, and drive arrangement can drive (mixing) shaft 3 and axle sleeve 2 rotatory. The axial direction of the stirring shaft 3 is defined as the up-down direction, the end of the stirring shaft 3 connected with the driving device is the upper end of the stirring shaft 3, and the end of the stirring shaft 3 connected with the shaft sleeve 2 is the lower end of the stirring shaft 3.
Bushing 1, axle sleeve 2 are along the cylindric setting of vertical extension, and axle sleeve 2 can rotate along the decurrent axis relatively bushing 1, and when (mixing) shaft 3 drove axle sleeve 2 and rotate, axle sleeve 2 and bushing 1 formed the slip friction pair to bushing 1 can play the effect of restriction radial (being the level to) drunkenness to axle sleeve 2. Alternatively, in the present embodiment, the sleeve 2 can slide relative to the bushing 1 along the extending direction of the sleeve 2, and the bushing 1 does not limit or does not completely limit the upward and downward movement of the sleeve 2, and can allow the stirring shaft 3 to axially float.
The bearing seat 4 is provided with a sleeve hole (not shown in the figure) in a vertically penetrating manner, the bearing seat 4 is sleeved outside the bushing 1 through the sleeve hole, and the bearing seat 4 is connected with the bushing 1 through the spherical transmission mechanism 5. And spherical drive mechanism 5 can play two effects, spherical drive mechanism 5's an effect makes bush 1 can swing relative bearing frame 4, like this when (mixing) shaft 3 appears crooked because of fluid power, angle off-centre appears in (mixing) shaft 3 and axle sleeve 2, bush 1 can swing relative bearing frame 4 this moment, make bush 1 can follow the same angle of axle sleeve 2 off-centre, so bush 1 can not receive extra eccentric bending moment and accelerated wear, thereby it is synchronous emergence to realize that the dynamic off-centre of (mixing) shaft 3 and the following of bottom bearing are. Another function of the spherical transmission 5 is to limit the rotation of the bush 1 relative to the bearing block 4 along the vertical axis, so that the bush 1 does not follow the rotation during the rotation of the stirring shaft 3.
The utility model discloses a set up spherical drive mechanism 5 between bearing frame 4 and bush 1, bush 1 can swing bearing frame 4 relatively when the operation for the end bearing can dynamically follow (mixing) shaft 3's off-centre, avoids bush 1's extra wearing and tearing, prolongs the life-span of end bearing, and the economic loss that the device shut down and lead to when reducing end bearing and changing.
Axle sleeve 2 is fixed cup joints outside (mixing) shaft 3, and axle sleeve 2 can play the guard action to (mixing) shaft 3 to avoid directly forming the friction loss to (mixing) shaft 3, optionally, in this embodiment, axle sleeve 2's surface is through the sclerosis processing, and bush 1 is made for the softer material of relative axle sleeve 2, can slow down the rate of wear of axle sleeve 2 like this, extension axle sleeve 2's life.
The shaft sleeve 2 and the stirring shaft 3 are usually detachably connected, and optionally, referring to fig. 1, in this embodiment, a limiting surface (not shown in the drawings) facing the shaft sleeve 2 is disposed on an outer side surface of the stirring shaft 3, the limiting surface abuts against an end surface of one end of the shaft sleeve 2, a second pressing plate 7 is detachably disposed at an end surface of the stirring shaft 3, and the second pressing plate 7 abuts against an end surface of one end of the shaft sleeve 2, which is far away from the limiting surface.
Specifically, the stirring shaft 3 is generally cylindrical, and the lower portion of the stirring shaft 3 is reduced in diameter, so that a downward annular step surface, which is a stopper surface, is formed at the lower portion of the stirring shaft 3. Axle sleeve 2 cup joints outside the lower part of (mixing) shaft 3 and is located the below of spacing face, the up end and the spacing butt of axle sleeve 2, and the lower terminal surface of axle sleeve 2 flushes with the lower terminal surface of (mixing) shaft 3.
The second pressing plate 7 is a generally circular plate, and the second pressing plate 7 is detachably attached to the lower end surface of the stirring shaft 3. The center of the second pressing plate 7 is generally located on the axis of the stirring shaft 3, and the diameter of the second pressing plate 7 is larger than that of the lower part of the stirring shaft 3, so that the periphery of the second pressing plate 7 horizontally exceeds the lower end face of the stirring shaft 3. Simultaneously, the periphery of second clamp plate 7 is located axle sleeve 2 under, and the lower terminal surface of axle sleeve 2 and the peripheral butt of second clamp plate 7 to compress tightly fixed axle sleeve 2 from top to bottom through spacing face on the (mixing) shaft 3 and second clamp plate 7, make axle sleeve 2 can not fall from (mixing) shaft 3. The specific arrangement manner of the detachable connection between the second pressing plate 7 and the stirring shaft 3 may not be particularly limited, for example, please refer to fig. 1, in this embodiment, the second pressing plate 7 may be fixedly installed at the lower end surface of the stirring shaft 3 through a fastening member 9 such as a screw, a bolt, a rivet, and the like.
The spherical transmission mechanism 5 enables the bush 1 to swing relative to the bearing seat 4, so the spherical transmission mechanism 5 comprises a convex spherical surface and a concave spherical surface which can form spherical fit, the convex spherical surface in the spherical transmission mechanism 5 can be arranged on the bearing seat 4, the concave spherical surface in the spherical transmission mechanism 5 can also be arranged on the bearing seat 4, and the description will be given by taking the concave spherical surface in the spherical transmission mechanism 5 arranged on the bearing seat 4 as an example.
Correspondingly, the convex spherical surface in the spherical transmission mechanism 5 may be directly disposed on the bushing 1, and the convex spherical surface in the spherical transmission mechanism 5 may also be disposed on a component fixedly connected with the bushing 1, optionally, referring to fig. 1 and 2, in this embodiment, the spherical transmission mechanism 5 includes a bushing seat 51, the bushing seat 51 is fixedly sleeved outside the bushing 1, the bearing seat 4 is sleeved outside the bushing seat 51, and one of the inner side surface of the bearing seat 4 and the outer side surface of the bushing seat 51 is formed with a convex spherical surface, and the other is formed with a concave spherical surface matched with the convex spherical surface.
Specifically, the bush seat 51 is provided with a convex spherical surface in the spherical transmission mechanism 5, the interface surface of the bush seat 51 and the bearing seat 4 is a spherical surface in clearance fit, the bush seat 51 can swing relative to the bearing seat 4 with the sphere center of the convex spherical surface as a base point, the bush 1 is fixed on the bush seat 51, so that the bush 1 and the bush seat 51 can swing together, and because the contact surface of the bush seat 51 and the bearing seat 4 is spherical, the bush seat 51 can relatively slide along the spherical surface during operation, so that the bottom bearing can dynamically follow the eccentricity of the stirring shaft 3, and the additional abrasion of the bush 1 is avoided. Optionally, in this embodiment, the outer side surface of the bushing seat 51 and/or the inner side surface of the bearing seat 4 are hardened, and the service life of the spherical surface can be prolonged by hardening.
The inner side surface of the bearing seat 4 is formed with a concave spherical surface, which can be formed by locally sinking the inner side surface of the bearing seat 4 or formed by wholly sinking the inner side surface of the bearing seat 4. Similarly, the outer side surface of the bushing seat 51 may be formed with a convex spherical surface by partially projecting the outer side surface of the bushing seat 51, or may be formed with a convex spherical surface by projecting the entire outer side surface of the bushing seat 51. Alternatively, referring to fig. 1 and 2, in the present embodiment, one of the inner side surface of the bearing seat 4 and the outer side surface of the bushing seat 51 is convexly provided with an annular protrusion 55 extending along the circumferential direction of the bushing 2, and the annular protrusion 55 is formed with a convex spherical surface.
Specifically, the outer side surface of the bushing seat 51 is convexly provided with the annular protrusion 55, and one end, away from the outer side surface of the bushing seat 51, of the annular protrusion 55 is provided with a spherical structure, so that a convex spherical surface is formed, and the bushing seat 51 is not easily collided with the bearing seat 4 in the swinging process through the arrangement of the annular protrusion 55.
The spherical transmission mechanism 5 can also limit the bushing 1 to rotate along the vertical axis relative to the bearing seat 4, that is, the spherical transmission mechanism 5 can limit the bushing seat 51 to rotate along the vertical axis relative to the bearing seat 4, optionally, referring to fig. 1 and 2, in this embodiment, one of the convex spherical surface and the concave spherical surface is convexly provided with a limiting protrusion 52, and the other one is provided with a limiting groove 53 extending along the swinging direction of the bushing 2, and the limiting protrusion 52 extends into the limiting groove 53 to limit the bushing seat 51 to rotate along the axis in the extending direction of the bushing 2 relative to the bearing seat 4.
Specifically, the bearing seat 4 may be provided with the limiting protrusion 52 and the bushing seat 51 may be provided with the limiting groove 53, or the bushing seat 51 may be provided with the limiting protrusion 52 and the bearing seat 4 is provided with the limiting groove 53, and the following description will be given by taking the case where the bushing seat 51 is provided with the limiting protrusion 52 and the bearing seat 4 is provided with the limiting groove 53, that is, the convex spherical surface is convexly provided with the limiting protrusion 52, and the concave spherical surface is provided with the limiting groove 53.
The extending direction of the limit groove 53 (i.e., the swinging direction of the sleeve 2 and the bushing seat 51) is perpendicular or approximately perpendicular to the circumferential direction of the bushing seat 51, and then the groove width direction of the limit groove 53 is also the circumferential direction of the bushing seat 51. The limiting protrusion 52 extends into the limiting groove 53, the limiting groove 53 can form clamping limiting for the part of the limiting protrusion 52 extending into the limiting groove 53 in the groove width direction, so that the bushing seat 51 is limited from rotating relative to the bearing seat 4 along the circumferential direction of the bushing seat 51, the bushing seat 51 and the bearing seat 4 can be relatively fixed in the circumferential direction of the bushing seat 51, and therefore the bushing 1 and the bushing seat 51 cannot rotate along with the rotation when the stirring shaft 3 drives the shaft sleeve 2 to rotate. When the stirring shaft 3 is eccentric, the bushing 1 and the bushing seat 51 can swing together with the eccentricity of the stirring shaft 3, the part of the limiting protrusion 52 extending into the limiting groove 53 can also freely move along the limiting groove 53, and the matching of the limiting protrusion 52 and the limiting groove 53 does not affect the swinging of the bushing seat 51.
The convex spherical surface may be provided with one or more limiting protrusions 52, and the corresponding concave spherical surface may be provided with limiting grooves 53 having the same number as the limiting protrusions 52, for example, the limiting protrusions 52 and the limiting grooves 53 may be provided in one-to-one correspondence along the circumferential direction of the shaft sleeve 2.
The convex spherical surface is convexly provided with a limiting protrusion 52, the limiting protrusion 52 may be integrally formed with the bushing seat 51, the limiting protrusion 52 may also be formed by one component mounted on the bushing seat 51, optionally, referring to fig. 1 and 2, in this embodiment, one of the bearing seat 4 and the bushing seat 51, which is provided with the limiting protrusion 52, is provided with a limiting screw 54, and the head of the limiting screw 54 forms the limiting protrusion 52.
Specifically, a threaded hole (not shown in the figures) is formed in the spherical surface of the bushing seat 51, the tail of the limit screw 54 is screwed into the threaded hole, and the head of the limit screw 54 protrudes out of the outer side surface of the bushing seat 51 to form a limit protrusion 52, so that the bushing seat 51, the limit screw 54 and the bushing 1 form a floatable integral structure which is fixed together, wherein the limit screw 54 can be a screw, a threaded rod and the like. For example, 1-10 limit screws are uniformly distributed on the spherical surface of the bushing seat 51, the heads of the limit screws protrude out of the outer side surface of the bushing seat 51 to form limit protrusions 52, the spherical surface of the bearing seat 4 is provided with limit grooves 53 corresponding to the limit screws in number, and the protruding part of each limit screw is just clamped in one corresponding limit groove 53.
A limiting groove 53 is formed on the spherical surface of the bearing seat 4, and optionally, referring to fig. 1 and fig. 2, in this embodiment, the limiting groove 53 penetrates through the bearing seat 4 and one of the bushing seats 51 in the swing direction of the shaft sleeve 2, where one of the limiting grooves 53 is provided. The two ends of the limiting groove 53 in the extending direction respectively penetrate through the upper end face and the lower end face of the bearing seat 4, and the limiting groove 53 is like a notch arranged on the inner side face of the bearing seat 4, so that the limiting protrusion 52 on the bushing seat 51 is conveniently arranged in the limiting groove 53.
The bushing seat 51 is fixedly sleeved outside the bushing 1, and the bushing seat 51 and the bushing 1 are usually detachably connected, optionally, referring to fig. 1 and fig. 2, in this embodiment, the bushing seat 51 is provided with a mounting groove 56, the bushing 1 is disposed in the mounting groove 56, a first pressing plate 6 is detachably disposed at a notch of the mounting groove 56, and the first pressing plate 6 abuts against an end surface of one end of the bushing 1 away from a groove bottom of the mounting groove 56.
Specifically, the mounting groove 56 generally conforms to the shape of the liner 1, the liner 1 is cylindrical, the mounting groove 56 is a circular groove, and the first presser plate 6 is a circular annular plate coaxial with the liner 1. The bush 1 is sleeved in the mounting groove 56, one end of the bush 1 is abutted to the groove bottom wall of the mounting groove 56, and the other end of the bush 1 is flush with the groove opening edge of the mounting groove 56. The first presser plate 6 is detachably mounted at the notch edge of the mounting groove 56, and the inner diameter of the first presser plate 6 is smaller than the inner diameter of the mounting groove 56, so that the inner edge of the first presser plate 6 and the groove bottom wall of the mounting groove 56 can press-fasten the fixing bush 1 up and down. For example, referring to fig. 1, in the present embodiment, the first pressing plate 6 may be fixedly mounted at a notch edge of the mounting groove 56 by a fastener 9 such as a screw, a bolt, a rivet, and the like.
The notch of the mounting groove 56 may be upward or downward, and optionally, referring to fig. 1, in the present embodiment, the notch of the mounting groove 56 is downward, and a through hole (not shown in the figure) for the shaft sleeve 2 to pass through is formed through the bottom wall of the mounting groove 56.
Specifically speaking, the middle part of the groove bottom wall of mounting groove 56 is provided with the via hole with running through from top to bottom, and the upper end of axle sleeve 2 upwards wears out from the via hole department, and the lower extreme of axle sleeve 2 downwards wears out from the notch department of mounting groove 56. The groove bottom wall of the mounting groove 56 abuts against the upper end face of the bush 1, and the inner edge of the first presser plate 6 abuts against the lower end face of the bush 1, thereby pressing and fixing the bush 1 from top to bottom, so that the bush 1 does not fall down.
Optionally, referring to fig. 1, in the present embodiment, the bottom bearing structure 100 further includes a base plate 8, the bearing seat 4 is disposed on the base plate 8, and the bottom of the base plate 8 is provided with a support leg 81.
Specifically, the base plate 8 is generally horizontally disposed, the lower plate surface of the base plate 8 is provided with the support legs 81, and the base plate 8 and the support legs 81 support and fix the whole bottom bearing structure 100, wherein the support legs 81 are generally disposed at intervals along the circumferential direction of the base plate 8, for example, the number of the support legs 81 may be 3-10.
Further, referring to fig. 1, in the present embodiment, the substrate 8 is provided with a mounting hole 82, and the bearing seat 4 is disposed at the mounting hole 82.
Specifically, the base plate 8 is generally provided with a mounting hole 82 penetrating vertically in the middle, the bearing seat 4 is correspondingly mounted at the mounting hole 82, and the periphery of the bearing seat 4 and the lower hole edge of the mounting hole 82 can be fixedly connected by a fastener 9 such as a screw, a bolt, a rivet, and the like. The lower ends of the bush 1, the shaft sleeve 2, the stirring shaft 3 and the bearing seat 4 are positioned below the base plate 8, the upper ends of the bush 1, the shaft sleeve 2 and the stirring shaft 3 are positioned above the base plate 8, and the upper end of the bearing seat 4 is positioned in the mounting hole 82.
The utility model also provides an agitator, this agitator can be for the agitator that fields such as chemical industry, pharmacy used, and the agitator includes end bearing structure, and this end bearing structure can stir angle eccentric when dynamic compensation agitator moves, because end bearing structure has adopted the technical scheme of above-mentioned embodiment, consequently has the beneficial effect that the technical scheme of above-mentioned embodiment brought.
The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.
Claims (10)
1. A bottom bearing structure, comprising:
a bushing;
the shaft sleeve is fixedly sleeved outside the stirring shaft, sleeved in the bushing and capable of rotating along an axis in the extension direction of the shaft sleeve relative to the bushing; and the number of the first and second groups,
the bearing seat is sleeved outside the bushing and connected with the bushing through a spherical transmission mechanism, the spherical transmission mechanism is used for enabling the bushing to swing relative to the bearing seat, and the spherical transmission mechanism is further used for limiting the bushing to rotate relative to the bearing seat along the axis in the extending direction of the shaft sleeve.
2. The bottom bearing structure of claim 1, wherein the spherical transmission mechanism includes a bushing seat, the bushing seat is fixedly sleeved outside the bushing, the bearing seat is sleeved outside the bushing seat, one of an inner side surface of the bearing seat and an outer side surface of the bushing seat is formed with a convex spherical surface, and the other is formed with a concave spherical surface matched with the convex spherical surface.
3. A bottom bearing structure according to claim 2, wherein one of said convex spherical surface and said concave spherical surface is convexly provided with a stopper projection, and the other is provided with a stopper groove extending in the swinging direction of said bush, said stopper projection projecting into said stopper groove to restrict rotation of said bush housing with respect to said bearing housing along the axis in the extending direction of said bush.
4. The bottom bearing structure according to claim 3, wherein a plurality of the limit projections and the limit grooves are provided in one-to-one correspondence along a circumferential direction of the sleeve.
5. The bottom bearing structure of claim 3, wherein one of the bearing seat and the bushing seat, on which the limit projection is provided, is provided with a limit screw-connecting piece, and a head of the limit screw-connecting piece forms the limit projection; and/or the presence of a gas in the gas,
the limiting groove penetrates through the bearing seat and the bushing seat in the swinging direction of the shaft sleeve, and one of the limiting grooves is arranged in the bushing seat.
6. A bottom bearing construction according to claim 2, wherein one of the inner side surface of the bearing housing and the outer side surface of the bushing housing is convexly provided with an annular projection extending in the circumferential direction of the bushing, the annular projection being formed with the convex spherical surface.
7. A bottom bearing construction according to claim 2, wherein said bush housing is provided with a mounting groove in which said bush is disposed, a first presser plate is detachably provided at a notch of said mounting groove, and said first presser plate abuts an end surface of an end of said bush remote from a groove bottom of said mounting groove.
8. The bottom bearing structure according to any one of claims 1 to 7, wherein a limiting surface facing the shaft sleeve is arranged on the outer side surface of the stirring shaft, the limiting surface abuts against the end surface of one end of the shaft sleeve, a second pressing plate is detachably arranged on the end surface of the stirring shaft, and the second pressing plate abuts against the end surface of one end of the shaft sleeve, which is far away from the limiting surface.
9. The bottom bearing structure of any of claims 1-7, further comprising a base plate, wherein the bearing seat is disposed on the base plate, and wherein a bottom of the base plate is provided with legs.
10. An agitator comprising a bottom bearing arrangement as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222599994.6U CN218670198U (en) | 2022-09-29 | 2022-09-29 | Bottom bearing structure and stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222599994.6U CN218670198U (en) | 2022-09-29 | 2022-09-29 | Bottom bearing structure and stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218670198U true CN218670198U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222599994.6U Active CN218670198U (en) | 2022-09-29 | 2022-09-29 | Bottom bearing structure and stirrer |
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| Country | Link |
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| CN (1) | CN218670198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696940A (en) * | 2023-08-02 | 2023-09-05 | 中达(河北)轴承制造有限公司 | Outer spherical bearing with seat for limiting inclination angle |
-
2022
- 2022-09-29 CN CN202222599994.6U patent/CN218670198U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696940A (en) * | 2023-08-02 | 2023-09-05 | 中达(河北)轴承制造有限公司 | Outer spherical bearing with seat for limiting inclination angle |
| CN116696940B (en) * | 2023-08-02 | 2023-10-24 | 中达(河北)轴承制造有限公司 | Outer spherical bearing with seat for limiting inclination angle |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building 1-6, No. 458 Zhongmin Road, Maogang Town, Songjiang District, Shanghai, July 2016 Patentee after: Shanghai Senyong Engineering Equipment Co.,Ltd. Address before: Workshop 1, building 1, No. 458, Zhongmin Road, Maogang Town, Songjiang District, Shanghai, 201607 Patentee before: Shanghai Senyong Engineering Equipment Co.,Ltd. |
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| CP03 | Change of name, title or address |