A horizontally split circulating water pump bearing chamber

Abstract

The utility model relates to water pump bearing chamber technical field, and disclose a horizontal middle open type circulating water pump bearing chamber, including bearing body, the surface of bearing body is provided with upper bearing chamber subassembly, the surface of upper bearing chamber subassembly is provided with lower bearing chamber subassembly, the surface of lower bearing chamber subassembly is provided with bearing chamber support assembly, the surface of bearing chamber support assembly is provided with U type ribbed plate. Through the split type structure fixed bearing body of upper bearing chamber subassembly, lower bearing chamber subassembly and bearing chamber support assembly, make when checking bearing body, do not need to disassemble the device such as coupling, circulating water pump motor, circulating water pump pair of wheels, reduce the overhaul quantity.

Description

Technical Field

[0001] This utility model relates to the field of water pump bearing housing technology, and in particular to a horizontal split-type circulating water pump bearing housing. Background Technology

[0002] Centrifugal pumps, also known as horizontal split-case centrifugal pumps, are power equipment with dual suction inlets and dual discharge outlets. They are mainly used in urban water supply and drainage, industrial and mining water supply, farmland irrigation, and water conservancy projects, and can transport media such as clean water, seawater, and industrial water. Typically, three circulating water pumps are configured for each phase, with two in operation and one on standby during normal operation. The original bearing housing was made of gray cast iron. After long-term operation, corrosion occurred on the mating surfaces of the bearing housing and its support, causing the bearing housing to sink or become misaligned. This increased the stress on the bearing during operation and resulted in excessively high bearing temperatures, reaching up to 80 degrees Celsius. Replacing the bearing did not significantly improve the temperature, seriously threatening the safe and stable operation of the unit.

[0003] Furthermore, the original bearing housing structure presents challenges for maintenance: it prevents direct inspection of the bearing's appearance and lubrication, making it difficult to detect potential bearing problems promptly. To inspect the bearing, the outer end cover of the bearing housing must be opened and axially removed, but the axial distance between the outer end cover and the coupling is too small to allow for complete axial removal, rendering this method impractical. Forcibly attempting an inspection would require a series of complex operations, including disassembling the coupling, lifting the circulating water pump motor, and heating and disassembling the circulating water pump coupling, resulting in an extremely large workload. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of being inconvenient to maintain. To address this, we propose a horizontal split-type circulating water pump bearing chamber.

[0005] To achieve the above objectives, this application adopts the following technical solution: a horizontal split-case circulating water pump bearing housing, comprising a bearing body, an upper bearing housing assembly disposed on the surface of the bearing body, a lower bearing housing assembly disposed on the surface of the upper bearing housing assembly, a bearing housing support assembly disposed on the surface of the lower bearing housing assembly, and a U-shaped rib disposed on the surface of the bearing housing support assembly.

[0006] The lower bearing housing assembly includes a lower bearing housing body, which is movably mounted on the surface of the bearing housing support assembly. A lower bearing limiting seat is fixedly mounted on the surface of the lower bearing housing body, and the lower bearing limiting seat is movably mounted on the surface of the bearing body. The surface of the lower bearing housing body is provided with an outer diameter U-shaped groove and an L-shaped retaining groove. The bearing body is fixed by the split structure of the upper bearing housing assembly, the lower bearing housing assembly, and the bearing housing support assembly, so that when inspecting the bearing body, it is not necessary to disassemble the coupling, circulating water pump motor, circulating water pump coupling, and other devices, thus reducing the amount of maintenance.

[0007] Preferably, a limit ring is fixedly installed on the surface of the lower bearing chamber body, a cavity is provided on the surface of the lower bearing chamber body, and a second lower fixing screw hole, a first lower fixing screw hole, and a lower positioning hole are provided on the surface of the lower bearing chamber body.

[0008] Preferably, the bearing housing support assembly includes a bearing housing support body, which is fixedly installed on the surface of the lower bearing housing body. A connecting seat is fixedly installed on the surface of the bearing housing support body, and threaded holes are symmetrically distributed on the surface of the bearing housing support body.

[0009] Preferably, the surface of the bearing housing support body is provided with an inner diameter U-shaped groove, the inner diameter U-shaped groove is adapted to the outer diameter U-shaped groove, and the U-shaped rib is movably installed on the surface of the inner diameter U-shaped groove.

[0010] Preferably, the upper bearing housing assembly includes an upper bearing limiting seat, which is movably mounted on the surface of the bearing body. The surface of the upper bearing limiting seat has a first upper fixing screw hole and an upper positioning hole symmetrically distributed. The first upper fixing screw hole is adapted to the first lower fixing screw hole, and the upper positioning hole is adapted to the lower positioning hole. A radial positioning pin is movably mounted on the surface of the upper positioning hole.

[0011] Preferably, the upper bearing housing body is fixedly installed on the surface of the upper bearing limiting seat, and the surface of the upper bearing housing body is symmetrically distributed and fixedly installed with fixing seats, which are adapted to the threaded holes.

[0012] Preferably, the surface of the upper bearing chamber body is symmetrically distributed with second upper fixing screw holes, the second upper fixing screw holes are adapted to the second lower fixing screw holes, and the surface of the upper bearing chamber body is fixedly installed with a boss.

[0013] The technical effects and advantages of this utility model are as follows: In this invention, the split structure eliminates the need to disassemble the coupling, circulating water pump motor, circulating water pump coupling, and other devices when inspecting the bearings, reducing maintenance workload and improving the adaptability of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from an axial view perspective; Figure 3 This is a schematic diagram of the bearing housing support assembly of this utility model; Figure 4 This is a schematic diagram of the lower bearing chamber assembly of this utility model; Figure 5 This is a schematic diagram of the U-shaped rib plate of this utility model; Figure 6 This is a schematic diagram of the upper bearing chamber assembly of this utility model.

[0015] In the diagram: 1. Bearing body; 2. Upper bearing housing assembly; 201. Upper bearing housing body; 202. Upper bearing limiting seat; 203. Upper positioning hole; 204. First upper fixing screw hole; 205. Fixing seat; 206. Second upper fixing screw hole; 207. Boss; 3. Bearing housing support assembly; 301. Bearing housing support body; 302. Threaded hole; 303. Connecting seat; 304. Inner diameter U-shaped groove; 4. Lower bearing housing assembly; 401. Lower bearing housing body; 402. Outer diameter U-shaped groove; 403. First lower fixing screw hole; 404. Lower positioning hole; 405. Lower bearing limiting seat; 406. Cavity; 407. Second lower fixing screw hole; 408. L-shaped groove; 409. Limiting ring; 5. U-shaped rib; 6. Radial positioning pin. Detailed Implementation

[0016] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0017] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, this utility model provides a technical solution: a horizontal split-case circulating water pump bearing housing, comprising: a bearing body 1, an upper bearing housing assembly 2 disposed on the surface of the bearing body 1, a lower bearing housing assembly 4 disposed on the surface of the upper bearing housing assembly 2, the upper bearing housing assembly 2 and the lower bearing housing assembly 4 cooperating to fix the bearing body, a bearing housing support assembly 3 disposed on the surface of the lower bearing housing assembly 4 for supporting the overall structure and connecting to the pump body, a U-shaped rib 5 disposed on the surface of the bearing housing support assembly 3 for ensuring assembly strength, and the lower bearing housing assembly 4 including a lower bearing housing body 401 for covering the lower half of the bearing body 1, the lower bearing housing body 401 being movably mounted on the surface of the bearing housing support assembly 3. A lower bearing limiting seat 405 is fixedly installed on the surface of the bearing body 1 to support the lower half of the bearing body 1 and ensure the rotational stability of the bearing body 1. The lower bearing limiting seat 405 is movably installed on the surface of the bearing body 1. The surface of the lower bearing housing body 401 is provided with an outer diameter U-shaped groove 402 for placing U-shaped ribs 5. The surface of the lower bearing housing body 401 is provided with an L-shaped slot 408 to ensure that it forms a perfect circle after assembly and to prevent deformation or displacement during operation. The bearing body 1 is fixed by the split structure of the upper bearing housing assembly 2, the lower bearing housing assembly 4, and the bearing housing support assembly 3, so that when inspecting the bearing body 1, it is not necessary to disassemble the coupling, circulating water pump motor, circulating water pump coupling, etc., reducing the maintenance workload. A limit ring 409 is fixedly installed on the surface for limiting the bearing housing after installation. A cavity 406 is provided on the surface of the lower bearing housing body 401 to optimize the thermal expansion of the bearing housing. The surface of the lower bearing housing body 401 is provided with a second lower fixing screw hole 407, a first lower fixing screw hole 403, and a lower positioning hole 404. The second lower fixing screw hole 407 and the first lower fixing screw hole 403 are used for installation, and the lower positioning hole 404 is used to install a radial positioning pin 6. The bearing housing support assembly 3 includes a bearing housing support body 301 for fixing the lower bearing housing assembly 4. The bearing housing support body 301 is fixedly installed on the surface of the lower bearing housing body 401. A connecting seat 303 is fixedly installed on the surface of the bearing housing support body 301 for connecting a water pump and bearing. The surface of the bearing housing support body 301 is symmetrically provided with threaded holes 302 for connecting the fixing seat 205. The surface of the bearing housing support body 301 is provided with an inner diameter U-shaped groove 304, which mates with the outer diameter U-shaped groove 402 to form a U-shaped slot. The inner diameter U-shaped groove 304 and the outer diameter U-shaped groove 402 are adapted to each other. The U-shaped rib plate 5 is movably installed on the surface of the inner diameter U-shaped groove 304. The upper bearing housing assembly 2 includes an upper bearing limiting seat 202, which is used to limit the upper half of the bearing body 1 and maintain stable operation. The upper bearing limiting seat 202 is movably installed on the surface of the bearing body 1. The surface of the upper bearing limiting seat 202 is symmetrically provided with a first upper fixing screw hole 204 and an upper positioning hole 203. The first upper fixing screw hole 204 is adapted to the first lower fixing screw hole 403.The upper positioning hole 203 is adapted to the lower positioning hole 404. A radial positioning pin 6 is movably mounted on the surface of the upper positioning hole 203 for positioning the upper and lower components. The upper bearing housing body 201 is fixedly mounted on the surface of the upper bearing limit seat 202 to cover the upper half of the bearing body 1. Fixed seats 205 are symmetrically distributed and fixedly mounted on the surface of the upper bearing housing body 201 to prevent radial displacement and vibration during long-term operation of the bearing housing. The fixed seats 205 are adapted to the threaded hole 302. The surface of the upper bearing housing body 201 has symmetrically distributed second upper fixing screw holes 206, which are adapted to the second lower fixing screw holes 407. A boss 207 is fixedly mounted on the surface of the upper bearing housing body 201 for engaging with the L-shaped slot 408, positioning while preventing displacement.

[0018] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, in this embodiment: axial positioning pin holes are symmetrically arranged on the surface of the connecting seat 303. During installation, axial positioning pins with a diameter of 20mm are inserted into the axial positioning pin holes on the surface of the connecting seat 303 to achieve precise positioning of the bearing housing bracket. The cylindrical pins have threads at both ends and are secured with nuts to prevent slippage and detachment. Simultaneously, four M50 stainless steel bolts of the lower bearing housing assembly are inserted into the threaded holes on the surface of the connecting seat 303 to connect with the water pump. At this time, the U-shaped rib plate 5 is placed in the inner diameter U-shaped groove 304 on the surface of the bearing housing bracket body 301, and the lower bearing housing body 401 is placed on the surface of the bearing housing bracket body 301. The outer diameter U-shaped groove 402 and the inner diameter U-shaped groove 304 form a groove for fixing the U-shaped rib plate 5. At the same time, the boss on the surface of the bearing housing bracket body 301 cooperates with the limiting ring 409 to further fix the lower bearing housing assembly 4. The bearing body 1 is then placed on the lower bearing housing body 401. On the surface of the bearing housing 4, the lower bearing limiting seat 405 supports the lower half of the bearing body 1. At this time, the upper bearing housing assembly 2 is placed on the upper end of the bearing body 1. The boss 207 and the L-shaped groove 408 cooperate to ensure that the lower bearing housing assembly 4 and the upper bearing housing assembly 2 form a perfect circle after assembly, preventing deformation or displacement during operation. The upper positioning hole 203, the first upper fixing screw hole 204, and the second upper fixing screw hole 206 on the surface of the upper bearing housing assembly 2 are aligned with the lower positioning hole 404, the first lower fixing screw hole 403, and the second lower fixing screw hole 407 on the surface of the lower bearing housing assembly 4. At the same time, the threaded hole on the surface of the fixing seat 205 is aligned with the threaded hole 302 on the surface of the bearing housing support assembly 3. Four sets of bolts are passed through the upper positioning hole 203 and the lower positioning hole 404, the second upper fixing screw hole 206 and the second lower fixing screw hole 407, so that the upper bearing housing assembly 2 and the lower bearing housing assembly 4 are initially fixed. The fixed seat 205 is fixed to the bearing housing support assembly 3 by an M50 bolt on each side to prevent radial displacement and vibration during long-term operation of the bearing housing. Two radial positioning pins with a diameter of 10mm are installed in the upper positioning hole 203 of the upper bearing housing assembly. At this time, the upper bearing limit seat 202 and the lower bearing limit seat 405 form a complete circle, providing support when the bearing body 1 rotates, so as to make it rotate stably and prevent vibration. At the same time, the whole device is made of stainless steel to prevent corrosion of the bearing housing support surface and the mating surface with the bearing housing due to the humid working environment. This device can eliminate the need to disassemble the coupling, circulating water pump motor, circulating water pump coupling and other devices when inspecting the bearing, reducing maintenance workload and improving the adaptability of the device.

[0019] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A bearing housing for a horizontal split-case circulating water pump, characterized in that: The bearing includes a bearing body, an upper bearing housing assembly is provided on the surface of the bearing body, a lower bearing housing assembly is provided on the surface of the upper bearing housing assembly, a bearing housing support assembly is provided on the surface of the lower bearing housing assembly, and a U-shaped rib is provided on the surface of the bearing housing support assembly. The lower bearing housing assembly includes a lower bearing housing body, which is movably mounted on the surface of the bearing housing support assembly. A lower bearing limiting seat is fixedly mounted on the surface of the lower bearing housing body, and the lower bearing limiting seat is movably mounted on the surface of the bearing body. The surface of the lower bearing housing body is provided with an outer diameter U-shaped groove and an L-shaped retaining groove. The bearing body is fixed by the split structure of the upper bearing housing assembly, the lower bearing housing assembly, and the bearing housing support assembly, so that when inspecting the bearing body, it is not necessary to disassemble the coupling, circulating water pump motor, circulating water pump coupling, and other devices, thus reducing the amount of maintenance.

2. The bearing chamber of a horizontal split-case circulating water pump according to claim 1, characterized in that: A limit ring is fixedly installed on the surface of the lower bearing chamber body. A cavity is provided on the surface of the lower bearing chamber body. A second lower fixing screw hole, a first lower fixing screw hole, and a lower positioning hole are provided on the surface of the lower bearing chamber body.

3. The bearing chamber of a horizontal split-case circulating water pump according to claim 1, characterized in that: The bearing housing support assembly includes a bearing housing support body, which is fixedly installed on the surface of the lower bearing housing body. A connecting seat is fixedly installed on the surface of the bearing housing support body, and threaded holes are symmetrically distributed on the surface of the bearing housing support body.

4. The bearing chamber of a horizontal split-case circulating water pump according to claim 3, characterized in that: The surface of the bearing housing support body is provided with an inner diameter U-shaped groove, which is adapted to the outer diameter U-shaped groove, and the U-shaped rib is movably installed on the surface of the inner diameter U-shaped groove.

5. The bearing chamber of a horizontal split-case circulating water pump according to claim 1, characterized in that: The upper bearing housing assembly includes an upper bearing limiting seat, which is movably mounted on the surface of the bearing body. The surface of the upper bearing limiting seat has a first upper fixing screw hole and an upper positioning hole symmetrically distributed. The first upper fixing screw hole is adapted to the first lower fixing screw hole, and the upper positioning hole is adapted to the lower positioning hole. A radial positioning pin is movably mounted on the surface of the upper positioning hole.

6. The bearing chamber of a horizontal split-case circulating water pump according to claim 5, characterized in that: The upper bearing housing body is fixedly installed on the surface of the upper bearing limiting seat. The upper bearing housing body is symmetrically distributed and fixedly installed with fixing seats, and the fixing seats are adapted to the threaded holes.

7. The bearing chamber of a horizontal split-case circulating water pump according to claim 6, characterized in that: The surface of the upper bearing chamber body is symmetrically distributed with second upper fixing screw holes, which are adapted to the second lower fixing screw holes. A boss is fixedly installed on the surface of the upper bearing chamber body.

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