Bottom bearing assembly and stirrer
By designing a convenient disassembly mechanism for bearing seats and sliding bearings, the problem of sliding bearing maintenance of bottom bearing components is solved, the replacement efficiency and stability are improved, the service life is extended, and the wear resistance and corrosion resistance are improved through tin bronze materials. .
Patent Information
- Application Number
- CN202420916696.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The sliding bearings of existing bottom bearing assembly are not easy to replace or repair, resulting in complex and time-consuming and labor-intensive repair processes, increasing maintenance costs and potentially damaging the equipment.
A bottom bearing assembly, including brackets and bearing seats, is designed through the design of channels and mounting holes, allowing the bearing seats to be adjusted in multiple positions, enabling easy disassembly and replacement of sliding bearings, reducing dependence on transmission components and long shafts , adopts transition fit and locking bolt fixing to ensure stability and reliability.
It greatly improves the replacement and maintenance efficiency of sliding bearings, reduces the risk of equipment damage, simplifies the operation process, and improves the corrosion and wear resistance of bearings through tin bronze materials, and extends the service life.
Smart Images
Figure CN222325028U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material mixing, in particular to a bottom bearing assembly and a stirrer. Background Art
[0002] In the chemical, pharmaceutical and other industrial fields, the agitator is a core equipment, and its efficient and stable operation is crucial to the continuous operation of the entire production line. The agitator drives the long shaft through the motor to drive the rotor to rotate at high speed, thereby achieving strong shearing and impact on liquids or powders and other materials to achieve a full mixing effect.
[0003] As one of the key components of the agitator, the bottom bearing assembly is installed at the bottom of the mixing tank. Its main function is to ensure that the transmission shaft remains stable and does not swing during high-speed rotation. However, since the bottom bearing assembly runs in the mixing material for a long time, its working environment is harsh and it is often worn and corroded. In particular, the sliding bearing in it has become a vulnerable part and needs to be replaced or repaired frequently.
[0004] At present, the traditional bottom bearing assembly design has obvious shortcomings. When replacing or repairing the sliding bearing, it is usually necessary to dismantle and lift the transmission assembly and the long shaft at the top of the mixing tank to separate the sliding bearing from the long shaft. This complicated operation is not only time-consuming and labor-intensive, increasing maintenance costs, but also easily causes damage to the equipment during the disassembly and installation process, affecting the service life of the agitator.
[0005] Therefore, how to provide a bottom bearing assembly to facilitate the replacement or maintenance of the sliding bearing is a technical problem that those skilled in the art currently need to solve. Utility Model Content
[0006] The utility model aims to provide a bottom bearing assembly and a stirrer, which solves the technical problem that the sliding bearing of the existing bottom bearing assembly is not easy to replace or repair.
[0007] To achieve the above object, the utility model provides a bottom bearing assembly, comprising:
[0008] A bracket is fixed on the bottom plate of the mixing tank, a support plate is provided on the top of the bracket, a through hole and a plurality of through channels and mounting holes are provided on the support plate, the through hole is arranged at the center of the support plate, the channel is connected to the through hole, the channel and the mounting holes are evenly arranged around the through hole, and the channels and the mounting holes are arranged alternately;
[0009] A bearing seat is arranged in the through hole, a stepped hole is arranged in the middle of the bearing seat, a plurality of evenly distributed connecting plates are arranged at the edge of the outer ring of the bearing seat, each connecting plate is provided with a connecting hole, when the bearing seat is in the first position, the mounting hole corresponds to the connecting hole, and the bearing seat is fixedly connected to the support plate through a connecting member, when the bearing seat is in the second position, the connecting plate can vertically pass through the channel downward to separate the bearing seat from the support plate;
[0010] A sliding bearing is arranged in the stepped hole and is used to cooperate with the end of the transmission long shaft.
[0011] Preferably, the shape of the channel is similar to that of the connecting plate, and the size of the channel is larger than that of the connecting plate.
[0012] Preferably, the number of the channels, the number of the mounting holes and the number of the connecting plates are all three.
[0013] Preferably, the connecting member is a hexagonal head bolt.
[0014] Preferably, the connecting plate is arranged at the edge of the upper outer ring of the bearing seat, the outer peripheral surface of the bearing seat is provided with a first locking hole connected to the stepped hole, and the outer peripheral surface of the sliding bearing is provided with a second locking hole corresponding to the first locking hole, and the bearing seat and the sliding bearing are fixedly connected to each other by the locking bolt cooperating with the first locking hole and the second locking hole.
[0015] Preferably, the inner wall of the first locking hole is provided with an internal thread, the second locking hole is a smooth hole, and the outer peripheral surface of the locking bolt is provided with an external thread.
[0016] Preferably, the sliding bearing is a tin bronze sliding bearing.
[0017] Preferably, the bearing seat and the sliding bearing are in transition fit.
[0018] Preferably, the bottom end of the bracket is arranged obliquely with respect to the bottom plate.
[0019] In order to achieve the above object, the utility model also provides a stirrer, comprising the above bottom bearing assembly.
[0020] Compared with the above background technology, the bottom bearing assembly provided by the utility model, when the sliding bearing needs to be repaired or replaced, the operator first enters the bottom of the mixing tank, disconnects the connection between the bearing seat and the support plate, and then adjusts the bearing seat to the second position, at which time the connecting plate is vertically passed through the channel on the support plate, so that the bearing seat is completely separated from the support plate, and then the operator separates the sliding bearing from the support plate, and the sliding bearing can be taken out for repair or replacement. This convenient disassembly method does not require the disassembly of the transmission assembly and the long shaft, greatly improves the operating efficiency, not only reduces the operation time, but also reduces the potential risk of damage to the equipment. After the repair or replacement is completed, the operator only needs to connect the new or repaired sliding bearing to the bearing seat, and then adjust the bearing seat to the second position to ensure that the sliding bearing and the transmission long shaft are correctly matched. At this time, the connecting plate passes through the channel vertically upward, and finally, when the connecting plate is completely above the support plate, the operator adjusts the bearing seat to the first position, at which time the mounting hole corresponds precisely to the connecting hole, and the bearing seat is firmly fixed and connected to the support plate through the connecting piece, thereby ensuring the stability and reliability of the bottom bearing assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0022] Figure 1 A front view of a bottom bearing assembly provided by an embodiment of the utility model;
[0023] Figure 2 A top view of a bottom bearing assembly provided by an embodiment of the utility model;
[0024] Figure 3 A schematic diagram of the support plate structure provided by an embodiment of the utility model;
[0025] Figure 4 This is a schematic diagram of the bearing seat structure provided in an embodiment of the utility model.
[0026] in:
[0027] 1- bracket, 2- base plate, 3- support plate, 4- bearing seat, 5- sliding bearing, 6- locking bolt;
[0028] 31-through hole, 32-channel, 33-mounting hole;
[0029] 41-connecting plate, 42-connecting hole, 43-connecting piece. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0032] See also Figure 1-Figure 4 The present application provides a bottom bearing assembly, including a bracket 1, which is firmly fixed on the bottom plate 2 of the mixing tank. The diameter of the mixing tank is about 3m, and the operator can directly enter the bottom of the mixing tank. A support plate 3 is provided on the top of the bracket 1, and a through hole 31 is provided on the support plate 3 for accommodating a bearing seat 4, so that the bearing seat 4 can be accurately positioned at a predetermined position. In addition, the support plate 3 is also provided with a plurality of through channels 32 and mounting holes 33, which are connected with the through holes 31, providing space for the lifting and lowering operation of the bearing seat 4. The channels 32 and the mounting holes 33 are uniformly arranged around the through holes 31. Such a design not only ensures the symmetry of the structure, but also enhances the overall stability. At the same time, the channels 32 and the mounting holes 33 are alternately arranged, which optimizes the space utilization of the support plate 3 and makes the structure more compact; a stepped hole is provided in the middle of the bearing seat 4 for accommodating a sliding bearing 5 to ensure that the sliding bearing 5 can be firmly installed, and the sliding bearing 5 cooperates with the end of the transmission long shaft to play a supporting and lubricating role. In addition, a plurality of evenly distributed connecting plates 41 are provided at the outer ring edge of the bearing seat 4, and connecting holes 42 are provided on the connecting plates 41 for connecting with the support plate 3. When the bearing seat 4 is in the first position, the mounting hole 33 corresponds to the connecting hole 42, and the bearing seat 4 can be fixedly connected to the support plate 3 through the connecting member 43 to ensure the stability and position accuracy of the bearing seat 4. When the bearing seat 4 is in the second position, the connecting plate 41 corresponds to the channel 32, and the connecting plate can pass through the channel.
[0033] That is to say, through the use of the bottom bearing assembly of the present application, when the sliding bearing 5 needs necessary maintenance or replacement, the operator first enters the bottom of the mixing tank and disconnects the connection between the bearing seat 4 and the support plate 3. Then, the operator adjusts the bearing seat 4 to the second position, at which time the connecting plate 41 is able to vertically pass through the channel 32 on the support plate 3, so that the bearing seat 4 is completely separated from the support plate 3. Then, the operator separates the sliding bearing 5 from the support plate 3, and the sliding bearing 5 can be taken out for maintenance or replacement. This convenient disassembly method does not require disassembly of the transmission assembly and the long shaft, greatly improves the operating efficiency, not only reduces the operating time, but also reduces the potential risk of damage to the equipment. After the maintenance or replacement is completed, the operator only needs to connect the new or repaired sliding bearing 5 to the bearing seat 4, and then adjust the bearing seat 4 to the second position to ensure that the sliding bearing 5 is properly matched with the transmission long shaft. At this time, the connecting plate 41 passes vertically upward through the channel 32. Finally, when the connecting plate 41 is completely located above the supporting plate 3, the operator adjusts the bearing seat 4 to the first position. At this time, the mounting hole 33 corresponds precisely to the connecting hole 42, and the bearing seat 4 is firmly fixed to the supporting plate 3 through the connecting piece 43, thereby ensuring the stability and reliability of the bottom bearing assembly.
[0034] See also Figure 3-Figure 4 Specifically, the shape of the channel 32 is similar to that of the connecting plate 41, and the size of the channel 32 is larger than the size of the connecting plate 41. The number of the channel, the mounting hole 33 and the connecting plate 41 are all three, and the connecting piece 43 is a hexagonal head bolt.
[0035] That is, the shape of the channel 32 is similar to that of the connecting plate 41, ensuring that the connecting plate 41 can smoothly pass through the channel 32. At the same time, the size of the channel 32 is slightly larger than that of the connecting plate 41, which ensures that the connecting plate 41 can easily pass through and avoids the instability caused by too large a gap.
[0036] In addition, there are three channels 32, three mounting holes 33 and three connecting plates 41, thereby ensuring that the bottom bearing assembly can be stably supported in multiple directions, ensuring that the bearing seat 4 can be stably fixed on the support plate 3, and also providing convenience for the replacement or maintenance of the sliding bearing 5.
[0037] The connecting member 43 adopts a hexagonal bolt. When the bearing seat 4 and the support plate 3 need to be fixedly connected, the hexagonal bolt only needs to be passed through the mounting hole 33, the connecting hole 42, matched with the nut, and then tightened.
[0038] Specifically, the connecting plate 41 is arranged at the edge of the upper outer ring of the bearing seat 4, the outer peripheral surface of the bearing seat 4 is provided with a first locking hole connected to the stepped hole, and the outer peripheral surface of the sliding bearing 5 is provided with a second locking hole corresponding to the first locking hole. The bearing seat 4 and the sliding bearing 5 are fixedly connected to each other through the cooperation of the locking bolt 6 with the first locking hole and the second locking hole. The inner wall of the first locking hole is provided with an internal thread, the second locking hole is a smooth hole, and the outer peripheral surface of the locking bolt 6 is provided with an external thread.
[0039] That is to say, the connecting plate 41 is arranged on the edge of the upper outer ring of the bearing seat 4 , and when the sliding bearing 5 needs to be replaced or repaired, the operator can easily operate through the connecting plate 41 .
[0040] At the same time, the outer circumference of the bearing seat 4 is provided with a first locking hole connected to the stepped hole, and the outer circumference of the sliding bearing 5 is provided with a second locking hole corresponding to the first locking hole, ensuring the precise fit between the two. In the actual fixing process, the bearing seat 4 and the sliding bearing 5 are fixedly connected through the cooperation of the locking bolt 6 with the first locking hole and the second locking hole. This connection method is not only structurally stable, but also easy to operate. It is worth mentioning that the inner wall of the first locking hole is provided with an internal thread, the second locking hole is a smooth hole, and the outer circumference of the locking bolt 6 is provided with an external thread matching it. This thread design enables the locking bolt 6 to be tightly screwed into the locking hole, realizing a firm connection between the bearing seat 4 and the sliding bearing 5.
[0041] Specifically, the sliding bearing 5 is a tin bronze sliding bearing, which is corrosion-resistant and wear-resistant, and the bearing seat 4 and the sliding bearing 5 are transitionally matched.
[0042] In further detail, the sliding bearing 5 is made of high-quality tin bronze material. This material has excellent corrosion resistance and wear resistance, can operate stably for a long time in a harsh working environment, and effectively prolongs the service life of the sliding bearing 5. At the same time, the tin bronze sliding bearing also has good lubrication performance, can reduce friction and wear, and improve the operating efficiency of the agitator.
[0043] In terms of structural design, a transition fit is adopted between the bearing seat 4 and the sliding bearing 5. This fit ensures a close connection between the two to adapt to changes in the actual working process. The transition fit not only enhances the stability and reliability of the structure, but also makes the replacement or maintenance process of the sliding bearing simpler and more efficient.
[0044] Specifically, there are three brackets 1, the brackets 1 are connected to the base plate 2 by welding, the bottom end of the bracket 1 is tilted to the base plate 2, the top end of the bracket 1 is fixed to the bottom edge of the support plate 3, and the tilt angle is 60 degrees.
[0045] In other words, the design of the bracket 1 of the bottom bearing assembly fully considers stability and supporting force. Specifically, the number of brackets 1 is determined to be 3, which can ensure that the bottom bearing assembly has sufficient supporting area and stability during operation. Each bracket 1 is connected to the bottom plate 2 by welding technology. This connection method is not only firm and reliable, but also can effectively resist the vibration and impact force generated during the stirring process, ensuring the long-term stable operation of the bottom bearing assembly. The design of the bracket 1 also takes into account the matching with the support plate 3. The bottom end of the bracket 1 is tilted with the bottom plate 2. This design enables the bracket 1 to better withstand the vertical load from the support plate 3 and effectively disperse it on the bottom plate 2. At the same time, the top of the bracket 1 is fixedly set at the bottom edge of the support plate 3. This layout enables the support plate 3 to be evenly and stably supported. The tilt angle is 60 degrees, which not only ensures the stable support of the bracket 1, but also makes the structure of the entire bottom bearing assembly more compact and beautiful.
[0046] The utility model also provides an agitator, which can be a paddle agitator used in the fields of chemical industry, pharmaceutical industry, etc. The agitator includes a bottom bearing assembly. Since the bottom bearing assembly adopts the technical solution of the above embodiment, it has the beneficial effects brought by the technical solution of the above embodiment.
[0047] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.
[0048] This article uses specific examples to illustrate the principle and implementation of a bottom bearing assembly and agitator provided by the utility model. The above examples are only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A bottom bearing assembly, characterized in that: include: A support (1) is fixedly mounted on a bottom plate (2) of a mixing tank, a support plate (3) is provided on the top of the support (1), a through hole (31) and a plurality of through channels (32) and mounting holes (33) are provided on the support plate (3), the through hole (31) is arranged at the center of the support plate (3), the channel (32) is connected to the through hole (31), the channel (32) and the mounting holes (33) are evenly arranged in a circle around the through hole (31), and the channels (32) and the mounting holes (33) are arranged alternately; A bearing seat (4) is arranged in the through hole (31), a stepped hole is arranged in the middle of the bearing seat (4), a plurality of evenly distributed connecting plates (41) are arranged at the edge of the outer ring of the bearing seat (4), each connecting plate (41) is provided with a connecting hole (42), when the bearing seat (4) is in a first position, the mounting hole (33) corresponds to the connecting hole (42), and the bearing seat (4) is fixedly connected to the support plate (3) through a connecting member (43), when the bearing seat (4) is in a second position, the connecting plate (41) can vertically pass through the channel (32) downward to separate the bearing seat (4) from the support plate (3); A sliding bearing (5) is arranged in the stepped hole, and the sliding bearing (5) is used to cooperate with the end of the transmission long shaft.
2. The bottom bearing assembly according to claim 1, characterized in that: The shape of the channel (32) is similar to that of the connecting plate (41), and the size of the channel (32) is larger than the size of the connecting plate (41).
3. The bottom bearing assembly according to claim 2, characterized in that: The number of the channels, the mounting holes (33) and the connecting plates (41) are all three.
4. The bottom bearing assembly according to claim 1, characterized in that: The connecting piece (43) is a hexagonal head bolt.
5. The bottom bearing assembly according to claim 1, characterized in that: The connecting plate (41) is arranged at the edge of the upper outer ring of the bearing seat (4); the outer peripheral surface of the bearing seat (4) is provided with a first locking hole connected to the stepped hole; the outer peripheral surface of the sliding bearing (5) is provided with a second locking hole corresponding to the first locking hole; the bearing seat (4) and the sliding bearing (5) are fixedly connected to each other by means of a locking bolt (6) engaging with the first locking hole and the second locking hole.
6. The bottom bearing assembly according to claim 5, characterized in that The inner wall of the first locking hole is provided with an internal thread, the second locking hole is a smooth hole, and the outer peripheral surface of the locking bolt (6) is provided with an external thread.
7. The bottom bearing assembly according to claim 1, characterized in that: The sliding bearing (5) is a tin bronze sliding bearing.
8. The bottom bearing assembly according to claim 1, characterized in that The bearing seat (4) and the sliding bearing (5) are in transition fit.
9. The bottom bearing assembly according to claim 1, characterized in that: The bottom end of the bracket (1) is arranged obliquely with respect to the bottom plate (2).
10. A stirrer, characterized in that: Comprising a bottom bearing assembly as claimed in any one of claims 1 to 9.