CN217633496U - Welded bearing box and axial-flow pump - Google Patents
Welded bearing box and axial-flow pump Download PDFInfo
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- CN217633496U CN217633496U CN202220256335.XU CN202220256335U CN217633496U CN 217633496 U CN217633496 U CN 217633496U CN 202220256335 U CN202220256335 U CN 202220256335U CN 217633496 U CN217633496 U CN 217633496U
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Abstract
The utility model adopts a welding type bearing box and an axial flow pump, which comprises an oil storage cylinder for storing lubricating oil; the first bearing seat is arranged at one end of the oil storage cylinder and is used for mounting a first bearing; the second bearing seat is arranged at one end, far away from the first bearing seat, of the oil storage cylinder, and the first bearing seat is used for mounting a second bearing; the first bearing and the second bearing are used for axially positioning the rotating shaft, and at least one of the first bearing seat and the second bearing seat is fixedly welded with the oil storage cylinder. At least one of the first bearing seat and the second bearing seat is welded and fixed with the oil storage cylinder, namely, before welding and assembling, the interior of the oil storage cylinder can be subjected to secondary processing through at least one side of the oil storage cylinder, and parts needing casting and forming are relatively small in size through welding and assembling, so that a large-size bearing box can be manufactured.
Description
Technical Field
The utility model relates to a bearing box structure field especially relates to a welded bearing box and axial-flow pump.
Background
In recent years, single-machine devices in the industries of salt production, alkali production, alumina and the like in China tend to be large-sized, the specifications of axial flow pumps matched with evaporation systems of the single-machine devices are synchronously increased, and the pump calibers are all phi 1400mm or more. The large-caliber axial-flow pump has high specification parameters, the weight of the large-caliber axial-flow pump is heavier, and the suspension mounting mode is special, so that the requirement on the operation reliability of the large-caliber axial-flow pump is high. The axial flow pump is the core equipment for realizing medium forced circulation of the evaporation system device, one set of system can only be provided with one circulating pump without a standby pump, and the system is installed in a suspension manner. Long-period reliable operation is particularly critical, and if the production is stopped for one day, tens of thousands or hundreds of thousands of losses are caused. Meanwhile, due to the requirements of product technical progress and market price competition, the requirements on weight reduction and manufacturing cost reduction of the whole circulating pump are met.
Along with the increase of the whole axial-flow pump, the required bearing box also needs to be larger, the traditional bearing box is integrally formed by casting, the HT200 gray iron is commonly used for casting, but the bearing box with a casting structure can only meet the requirement of the axial-flow pump with a medium or small caliber, the difficulty is increased when the bearing box with a larger size is integrally formed, and the cost is greatly increased. Meanwhile, the inner wall of the cast bearing box is difficult to carry out secondary processing, so that the smoothness is low, impurities can fall into the bearing in the using process, and danger is caused.
Therefore, there is a need for a welded bearing housing and an axial flow pump that are easy to manufacture and easy to machine.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems, the utility model provides a welded bearing box and axial-flow pump sets up at least one of primary shaft bearing and secondary shaft bearing and oil storage cylinder welded fastening, promptly before the welding equipment, can carry out secondary operation to oil storage cylinder inside through at least one side of oil storage cylinder to through the welding equipment, need cast fashioned part size less relatively, can make the large size bearing box.
The utility model adopts the technical proposal that:
in a first aspect, the present application provides a welded bearing housing comprising
The oil storage cylinder is used for storing lubricating oil;
the first bearing seat is arranged at one end of the oil storage cylinder and is used for mounting a first bearing;
the second bearing seat is arranged at one end of the oil storage cylinder, which is far away from the first bearing seat, and the first bearing seat is used for mounting a second bearing;
the first bearing and the second bearing are used for axially positioning the rotating shaft, and at least one of the first bearing seat and the second bearing seat is fixedly welded with the oil storage cylinder. At least one of the first bearing seat and the second bearing seat is welded and fixed with the oil storage cylinder, namely, before welding and assembling, the interior of the oil storage cylinder can be subjected to secondary processing through at least one side of the oil storage cylinder, and parts needing casting and forming are relatively small in size through welding and assembling, so that a large-size bearing box can be manufactured.
In some embodiments of the present application, the first bearing seat and the second bearing seat are welded and fixed to the oil storage cylinder. Further simplifying the casting difficulty.
In some embodiments of the present application, the first bearing seat and the second bearing seat are both seamlessly connected to the oil storage cylinder. Preventing the lubricant from leaking out.
In some embodiments of this application, be provided with first arc step on the first bearing frame, the diameter of first arc step equals the oil storage section of thick bamboo is close to the internal diameter of first bearing frame one side, first arc step is used for the block the oil storage section of thick bamboo. The oil storage cylinder and the first bearing seat are connected more stably.
In some embodiments of this application, be provided with second arc step on the second bearing frame, the diameter of second arc step equals the oil storage section of thick bamboo is close to the internal diameter of second bearing frame one side, second arc step is used for the block the oil storage section of thick bamboo. The oil storage cylinder and the second bearing seat are connected more stably.
In some embodiments of this application, still include the strengthening rib, the strengthening rib is fixed on first bearing frame, oil storage section of thick bamboo and second bearing frame, just the strengthening rib is along first bearing frame is from the direction setting of second bearing frame. The first bearing seat, the oil storage cylinder and the second bearing seat are further fixed through the reinforcing ribs, and the stability of the whole structure is improved.
In some embodiments of the present application, the reinforcing rib is welded and fixed to the first bearing seat, the oil storage cylinder, and the second bearing seat. The casting difficulty is reduced.
In some embodiments of the present application, the number of the reinforcing ribs is 4, and the reinforcing ribs are uniformly distributed around the oil storage cylinder. The structural reliability is increased.
In some embodiments of this application, the oil storage section of thick bamboo includes welded connection's first arc portion and second arc portion each other, first arc portion is provided with first central angle, second arc portion is provided with second central angle, first central angle with the sum of second central angle is 360. The first central angle may be set to 60-300 deg., and the second central angle may be set to 300-60 deg., respectively. Further reduced the casting degree of difficulty, conveniently carry out secondary operation to oil storage section of thick bamboo inside.
In a second aspect, the present application further provides an axial flow pump comprising the above-described welded bearing housing.
The beneficial effects of the utility model are that:
the utility model adopts a welding type bearing box, which comprises an oil storage cylinder for storing lubricating oil; the first bearing seat is arranged at one end of the oil storage cylinder and is used for mounting a first bearing; the second bearing seat is arranged at one end, far away from the first bearing seat, of the oil storage cylinder, and the first bearing seat is used for mounting a second bearing; the first bearing and the second bearing are used for axially positioning the rotating shaft, and at least one of the first bearing seat and the second bearing seat is fixedly welded with the oil storage cylinder. At least one of the first bearing seat and the second bearing seat is welded and fixed with the oil storage cylinder, namely, before welding and assembling, the interior of the oil storage cylinder can be subjected to secondary processing through at least one side of the oil storage cylinder, and parts needing casting and forming are relatively small in size through welding and assembling, so that a large-size bearing box can be manufactured.
Drawings
FIG. 1 is a cross-sectional view of the bearing housing of the present invention;
fig. 2 is a top view of the bearing housing of the present invention.
Description of specific element symbols:
1-a first supporting bearing, 2-an oil storage cylinder, 3-a second supporting bearing, 4-a reinforcing rib, 11-a first arc-shaped step and 31-a second arc-shaped step.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. The following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. Furthermore, the terms "horizontal", "vertical", "suspended", and the like do not imply that the components are required to be absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The function of the bearing housing is to carry the various radial, axial or combined forces transmitted by the shaft to the bearings and then by the bearings to the bearing housing, as well as the weight of the various components in the bearing housing assembly and the weight of the lubricating oil that ensures adequate lubrication of the bearings. The bearing housing must have sufficient mechanical strength, high structural design and machining accuracy requirements, including heat treatment requirements to relieve stress, etc.
Example 1: referring to fig. 1 and 2, a welded bearing housing includes an oil reservoir 2 for storing lubricating oil; a first bearing seat arranged at one end of the oil storage cylinder 2, and used for mounting a first bearing; the second bearing seat is arranged at one end of the oil storage cylinder 2, which is far away from the first bearing seat, and the first bearing seat is used for mounting a second bearing; the first bearing and the second bearing are used for axially positioning the rotating shaft, and at least one of the first bearing seat and the second bearing seat is fixedly welded with the oil storage cylinder 2. At least one of the first bearing seat and the second bearing seat is welded and fixed with the oil storage cylinder 2, namely, before welding and assembling, the interior of the oil storage cylinder 2 can be subjected to secondary processing through at least one side of the oil storage cylinder 2, and parts needing casting and forming are relatively small in size through welding and assembling, so that a large-size bearing box can be manufactured.
In some embodiments of the present application, the first bearing seat and the second bearing seat are both welded and fixed to the oil storage cylinder 2. Further simplifying the casting difficulty.
In some embodiments of the present application, the first bearing seat and the second bearing seat are both seamlessly connected to the oil storage cylinder 2. Preventing the lubricant from leaking out.
In some embodiments of the present application, a first arc-shaped step 11 is disposed on the first bearing seat, a diameter of the first arc-shaped step 11 is equal to an inner diameter of the oil storage cylinder 2 close to one side of the first bearing seat, and the first arc-shaped step 11 is used for engaging with the oil storage cylinder 2. The connection between the oil storage cylinder 2 and the first bearing seat is more stable. The central angle of the first arc-shaped step 11 may be 360 °.
In some embodiments of the present application, a second arc-shaped step 31 is disposed on the second bearing seat, a diameter of the second arc-shaped step 31 is equal to an inner diameter of the oil storage cylinder 2 near one side of the second bearing seat, and the second arc-shaped step 31 is used for engaging with the oil storage cylinder 2. The connection between the oil storage cylinder 2 and the second bearing seat is more stable. The central angle of the second arc-shaped step 31 may be 360 °.
In some embodiments of the present application, the oil storage device further includes a reinforcing rib 4, the reinforcing rib 4 is fixed on the first bearing seat, the oil storage cylinder 2 and the second bearing seat, and the reinforcing rib 4 is arranged along the direction from the second bearing seat to the first bearing seat. Further fix first bearing frame, oil storage cylinder 2 and second bearing frame through strengthening rib 4, improve overall structure's stability.
In some embodiments of the present application, the reinforcing rib 4 is welded and fixed to the first bearing seat, the oil storage cylinder 2, and the second bearing seat. The casting difficulty is reduced.
In some embodiments of the present application, the number of the reinforcing ribs 4 is 4, and the reinforcing ribs are uniformly distributed around the oil reservoir 2. The structural reliability is increased.
In some embodiments of the present application, the oil storage cylinder 2 includes a first arc portion and a second arc portion connected to each other by welding, the first arc portion is provided with a first central angle, the second arc portion is provided with a second central angle, and the sum of the first central angle and the second central angle is 360 °. The first central angle may be set to 60-300 deg., and the second central angle may be set to 300-60 deg., respectively. Further reduce the casting degree of difficulty, conveniently carry out secondary operation to the oil storage section of thick bamboo 2 inside. Specifically, the first arc-shaped part can be arranged to be of a semicircular structure, and the second arc-shaped plate is also of a semicircular structure. Further, a first central angle of 120 ° and a second central angle of 240 ° may be provided.
In some embodiments, the first bearing seat, the second bearing seat, the reinforcing ribs 4 and the oil storage cylinder 2 are made of carbon steel materials through welding, and the welded structure bearing box is beneficial to the integral matching design of the connection between the bearing box and the pump body of the large-caliber and ultra-large-caliber axial-flow pump, and can further meet the requirements of appearance quality and overall attractiveness of the bearing box. The manufacturing process adopts carbon steel material cutting and blanking, processes each component according to the process diagram, and finally forms the product by welding. Compared with a cast part, the wall thickness of the carbon steel plate welding part is easier to control, the weight is lighter under the condition of meeting enough mechanical strength, and the cost is lower because the process consumption of manufacturing a casting model, casting defects and the like is avoided.
In some embodiments, in order to improve the bearing capacity, the sizes of the pump shaft and the first and second support bearings 3 can be increased, and the size of the oil storage cylinder 2 can be increased to fully lubricate the bearings and improve the cooling condition of the bearings, so that the service life of the bearings is prolonged as much as possible; the welded bearing box has the advantages that the machining deviation of linear dimensions is small, the transverse and longitudinal gravity center is more stable, the size inside the oil storage cylinder 2 is easy to guarantee, the smooth finish of the inner wall of the oil storage cylinder 2 can be better, and the risk that a non-machined surface enters the bearing due to the falling of impurities is reduced.
In a second aspect, the present application further provides an axial flow pump comprising the above-described welded bearing housing.
The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention, and all the above should belong to the protection scope of the present patent.
Claims (10)
1. A welded bearing housing, comprising
The oil storage cylinder is used for storing lubricating oil;
the first bearing seat is arranged at one end of the oil storage cylinder and is used for mounting a first bearing;
the second bearing seat is arranged at one end, far away from the first bearing seat, of the oil storage cylinder and is used for mounting a second bearing;
the first bearing and the second bearing are used for axially positioning the rotating shaft, and at least one of the first bearing seat and the second bearing seat is fixedly welded with the oil storage cylinder.
2. The welded bearing housing of claim 1, wherein said first bearing housing and said second bearing housing are welded to said cartridge.
3. The welded bearing housing of claim 2, wherein the first bearing housing and the second bearing housing are seamlessly connected to the oil reservoir.
4. The welded bearing housing of claim 1, wherein the first bearing seat has a first arc-shaped step thereon, the diameter of the first arc-shaped step is equal to the inner diameter of the oil reservoir on a side close to the first bearing seat, and the first arc-shaped step is used for engaging with the oil reservoir.
5. The welded bearing housing as claimed in claim 1, wherein a second arcuate step is provided on the second bearing housing, the second arcuate step having a diameter equal to an inner diameter of the oil storage cylinder on a side thereof adjacent to the second bearing housing, the second arcuate step being adapted to engage with the oil storage cylinder.
6. The welded bearing housing of claim 1, further comprising a stiffener fixed to the first bearing housing, the oil reservoir, and the second bearing housing, the stiffener being disposed along the first bearing housing in a direction from the second bearing housing.
7. The welded bearing housing of claim 6, wherein the stiffener is welded to the first bearing housing, the oil reservoir, and the second bearing housing.
8. The welded bearing housing of claim 6, wherein the number of the ribs is 4 and the ribs are uniformly distributed around the oil reservoir.
9. The welded bearing housing of claim 1, wherein the oil reservoir comprises a first arc portion and a second arc portion welded to each other, the first arc portion having a first central angle, the second arc portion having a second central angle, and the sum of the first central angle and the second central angle being 360 °.
10. An axial flow pump comprising a welded bearing housing according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220256335.XU CN217633496U (en) | 2022-02-08 | 2022-02-08 | Welded bearing box and axial-flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220256335.XU CN217633496U (en) | 2022-02-08 | 2022-02-08 | Welded bearing box and axial-flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217633496U true CN217633496U (en) | 2022-10-21 |
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ID=83643453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220256335.XU Active CN217633496U (en) | 2022-02-08 | 2022-02-08 | Welded bearing box and axial-flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217633496U (en) |
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2022
- 2022-02-08 CN CN202220256335.XU patent/CN217633496U/en active Active
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