Pump bearing body mounting structure easy to position and mount

Abstract

The utility model discloses a pump bearing body installation structure easy to position and install, which comprises a pump body and a pump shaft penetrating through the pump body, the pump body comprises an upper pump body and a lower pump body which are fixedly connected together up and down, and the two sides of the lower pump body along the length direction of the pump shaft respectively protrude outwards to form bearing supports. A bearing mounting seat rotationally connected with the pump shaft on the side where the bearing support is located is mounted on the bearing support, and the bearing support and the bearing mounting seat are positioned and matched together through an arc-shaped spigot which is arranged in the direction of the center line of the pump shaft and is in a major arc shape; a plurality of fastening bolts are evenly arranged at the seam allowance matching position between the bearing support and the bearing installation base at intervals in the direction of the center line of the pump shaft, and the fastening bolts penetrate through the bearing installation base in the direction parallel to the center line of the pump shaft and are connected to the bearing support in a threaded mode so that the bearing support and the bearing installation base can be fastened together. According to the utility model, the installation is convenient, the requirement on the experience of an operator is reduced, and the installation quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, and particularly relates to a pump bearing body installation structure which is easy to position and install. Background Technique

[0002] At present, the centrifugal pump rotor systems commonly used in industry are all supported by contact bearings. The bearing positioning in contact bearing support means ensuring that the bearing is correctly and firmly fixed in its installation position so as to be able to effectively transmit loads and maintain the precise alignment of rotating components. Correct bearing positioning is crucial for ensuring the normal operation of mechanical systems. At present, the positioning of bearings takes a long time and has low efficiency, and the quality of assembly is related to the experience of the operator to a certain extent and cannot be effectively controlled. Content of the Utility Model

[0003] Aiming at the above deficiencies of the prior art, the technical problem to be solved by the utility model is: how to provide a pump bearing body installation structure which is not only easy and efficient to install, but also can ensure the installation quality and is easy to position and install.

[0004] In order to solve the above technical problems, the technical scheme adopted by the utility model is:

[0005] A pump bearing body installation structure which is easy to position and install, comprising a pump body and a pump shaft passing through the pump body. The pump body includes an upper pump body and a lower pump body which are fixedly connected together up and down. On both sides of the lower pump body along the length direction of the pump shaft, bearing supports are respectively formed by outward protrusions. A bearing mounting seat rotatably connected to the pump shaft on its corresponding side is installed on the bearing support. The bearing support and the bearing mounting seat are positioned and fitted together through an arc-shaped mating surface with a shape of a major arc arranged around the center line of the pump shaft. A plurality of fastening bolts are evenly spaced around the center line of the pump shaft at the mating surface of the bearing support and the bearing mounting seat. The fastening bolts pass through the bearing mounting seat along the direction parallel to the center line of the pump shaft and are threadedly connected to the bearing support to fasten the bearing support and the bearing mounting seat together.

[0006] In the utility model, the bearing support and the bearing mounting seat adopt an arc-shaped mating surface with a major arc structure for positioning and fitting. The deviation between the pump bearing body component and the pump body is ensured through the numerical control machining of the mating surface. Moreover, through the fastening bolts arranged around the center line of the pump shaft, a radial positioning function can be achieved, preventing the pump from having no limit when horizontally moving due to unbalance during operation. Therefore, the operator can easily and conveniently position and install the bearing, which not only ensures the installation quality but also improves the installation efficiency.

[0007] As an optimization, the bearing mount includes a seat body. A bearing mounting hole is provided in the seat body along the central axis direction of the pump shaft. The pump shaft passes through the bearing mounting hole, and a bearing that mates with the bearing mounting hole is sleeved on the shaft body located within the bearing mounting hole. Sleeve members for abutting against the inner ring of the bearing to limit the bearing are respectively sleeved on the shaft body of the pump shaft and at positions on both sides of the bearing. Bearing covers for shielding the bearing mounting holes on their respective sides are fixedly and sealingly connected to both sides of the seat body along the central axis direction of the pump shaft. The pump shaft passes through the corresponding bearing cover and is rotationally and sealingly mated with the bearing cover. Retaining rings concentric with the pump shaft are respectively disposed in the bearing mounting hole and at positions on both sides of the bearing. The pump shaft passes through the retaining rings, and the retaining rings abut against the outer ring of the bearing on their respective sides. A convex ring is formed on the inner side surface of the bearing cover, which is provided around the pump shaft and abuts against the retaining ring on its respective side.

[0008] As an optimization, a lubricating oil cavity is formed between the bearing cover and the seat body. A plurality of oil holes for communicating the inside and outside of the convex ring are provided on the convex ring. A plurality of connecting oil channels for communicating the two lubricating oil cavities are evenly spaced and penetrated in the seat body along the central axis direction of the bearing mounting hole. The connecting oil channels extend along a direction parallel to the central axis direction of the bearing mounting hole. An oil injection channel communicating with the lubricating oil cavity is penetrated in the top of the seat body. An oil injection bolt for sealing the oil injection channel is threadedly connected to the position of the inlet end of the oil injection channel. An oil drain channel communicating with the lubricating oil cavity is penetrated in the bottom of the seat body. An oil drain bolt for closing the oil drain channel is threadedly connected to the position of the outlet end of the oil drain channel. Injecting lubricating oil can ensure the normal operation of the bearing, and the oil drain channel at the bottom also facilitates the discharge of waste oil.

[0009] As an optimization, annular oil collecting grooves concentric with the bearing mounting hole are respectively recessed on the two side surfaces of the seat body along the central axis direction of the bearing mounting hole. The lowest point of the annular oil collecting groove is lower than the lowest point of the lubricating oil cavity. The connecting oil channels are located at the bottom of the annular oil collecting groove and close to the outer side wall of the annular oil collecting groove. One of the connecting oil channels communicates with the lowest points of the two annular oil collecting grooves respectively. The oil drain channel extends in the vertical direction and communicates with the connecting oil channel located at the lowest point. This can make the waste oil drain more cleanly during the process of discharging the waste oil.

[0010] As an optimization, the number of the oil injection channels is two and they respectively communicate with the two lubricating oil cavities. When adding new lubricating oil, open the two oil injection bolts simultaneously, and inject lubricating oil through one of the oil injection channels. During the oil injection process, the air in the lubricating oil cavity will be discharged outwards through the other oil injection channel, thereby enabling the oil injection to be more smooth.

[0011] As an optimization, a limiting concave hole communicating with the inner hole of the sleeve and having the same center line as the inner hole of the sleeve is concavely provided on one side of one of the sleeves facing away from the bearing. A limiting groove annularly arranged around the center line direction of the pump shaft is concavely provided at the position of the pump shaft corresponding to the limiting concave hole. A limiting snap ring concentric with the pump shaft is arranged in the limiting groove. The limiting snap ring extends out of the limiting groove and abuts against the bottom of the limiting groove to limit the sleeve on its side. A locking nut is provided on one side of the other sleeve facing away from the bearing. The locking nut is sleeved on the pump shaft and is in threaded cooperation with the pump shaft. The locking nut abuts against the sleeve on its side to limit it. The sleeves are limited in different ways at different positions on the pump shaft, which is convenient for disassembly and assembly.

[0012] Compared with the prior art, the utility model is positioned by the arc-shaped mating surface of the superior arc, which is not only convenient for installation, but also reduces the experience requirements for operators, and at the same time, the installation quality is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a sectional view of the installation structure of the bearing body in the utility model;

[0014] Figure 2 is a side view of the installation structure of the bearing body in the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the objectives, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the utility model. The components of the embodiments of the utility model described and illustrated herein can be arranged and designed in a variety of different configurations. Therefore, the detailed description of the embodiments of the utility model provided herein is not intended to limit the scope of the utility model claimed, but merely represents selected embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0016] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0017] As Figure 1 and Figure 2 shown, the pump bearing body installation structure that is easy to position and install in this specific embodiment includes a pump body and a pump shaft 1 passing through the pump body. The pump body includes an upper pump body and a lower pump body 2 fixedly connected together up and down. On both sides of the lower pump body 2 along the length direction of the pump shaft 1, bearing supports 3 are respectively protruded outwards. A bearing mounting seat rotatably connected to the pump shaft 1 on its corresponding side is installed on the bearing support 3. The bearing support 3 and the bearing mounting seat are positioned and fitted together through an arc-shaped mating surface in the shape of a major arc arranged around the center line of the pump shaft. A plurality of fastening bolts 4 are evenly spaced around the center line of the pump shaft 1 at the mating surface between the bearing support 3 and the bearing mounting seat. The fastening bolts 4 pass through the bearing mounting seat along the direction parallel to the center line of the pump shaft 1 and are threadedly connected to the bearing support 3 to fasten the bearing support 3 and the bearing mounting seat together.

[0018] In this specific embodiment, the bearing mount includes a seat body 5. A bearing mounting hole is penetrated along the center line direction of the pump shaft 1 on the seat body 5. The pump shaft 1 passes through the bearing mounting hole, and a bearing 6 that mates with the bearing mounting hole is sleeved on the shaft body located within the bearing mounting hole. Sleeve 7s for abutting against the inner ring of the bearing 6 to limit the bearing 6 are respectively sleeved on the shaft body of the pump shaft 1 and at positions on both sides of the bearing 6. On both sides of the seat body 5 along the center line direction of the pump shaft 1, bearing covers 8 for shielding the bearing mounting hole on its corresponding side are fixedly and sealingly connected. The pump shaft 1 passes through the corresponding bearing cover 8 and is in rotational and sealing cooperation with the bearing cover 8. Retaining rings 9 concentric with the pump shaft 1 are respectively disposed in cooperation at positions on both sides of the bearing 6 within the bearing mounting hole. The pump shaft 1 passes through the retaining ring 9, and the retaining ring 9 abuts against the outer ring of the bearing 6 on its corresponding side. A convex ring 10 that is formed by a protrusion on the inner side surface of the bearing cover 8 and that encircles the pump shaft 1 and abuts against the retaining ring 9 on its corresponding side is provided.

[0019] In this specific embodiment, a lubricating oil cavity is formed between the bearing cover 8 and the seat body 5. A plurality of oil holes for communicating the inside and outside of the convex ring 10 are provided on the convex ring 10. A plurality of connecting oil channels 11 for communicating the two lubricating oil cavities are uniformly spaced and penetrated along the center line direction of the bearing mounting hole on the seat body 5. The connecting oil channels 11 extend along a direction parallel to the center line direction of the bearing mounting hole. An oil injection channel 12 communicating with the lubricating oil cavity is penetrated at the top of the seat body 5. An oil injection bolt 13 for sealing the oil injection channel 12 is threadedly connected at the position of the inlet end of the oil injection channel 12. An oil discharge channel 14 communicating with the lubricating oil cavity is penetrated at the bottom of the seat body 5. An oil discharge bolt 15 for closing the oil discharge channel 14 is threadedly connected at the position of the outlet end of the oil discharge channel 14.

[0020] In this specific embodiment, annular oil collecting grooves 16 concentric with the bearing mounting hole are respectively recessed on both side surfaces of the seat body 5 along the center line direction of the bearing mounting hole. The lowest point of the annular oil collecting groove 16 is lower than the lowest point of the lubricating oil cavity. The connecting oil channels 11 are located on the bottom of the annular oil collecting groove 16 and close to the outer side wall of the annular oil collecting groove 16. One of the connecting oil channels 11 communicates with the lowest points of the two annular oil collecting grooves 16 respectively. The oil discharge channel 14 extends in the vertical direction and communicates with the connecting oil channel 11 at the lowest point.

[0021] In this specific embodiment, the number of the oil injection channels 12 is two and they communicate with the two lubricating oil cavities respectively.

[0022] In this specific embodiment, on one side of the bushing 7 facing away from the bearing 6, a limiting concave hole communicating with the inner hole of the bushing 7 and having the same center line as the inner hole of the bushing 7 is recessed. At the position of the pump shaft 1 corresponding to the limiting concave hole, a limiting groove is recessed around the center line direction of the pump shaft 1. A limiting snap ring 17 concentric with the pump shaft 1 is arranged in the limiting groove. The limiting snap ring 17 extends out of the limiting groove and abuts against the bottom of the limiting groove to limit the bushing 7 on its side; on the side of the other bushing 7 facing away from the bearing 6, a lock nut 18 is arranged. The lock nut 18 is sleeved on the pump shaft 1 and is in threaded cooperation with the pump shaft 1. The lock nut 18 abuts against the bushing 7 on its side to limit it.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described by referring to the preferred embodiments of the present invention, those of ordinary skill in the art should understand that various changes can be made in form and details without departing from the spirit and scope of the present invention defined by the appended claims.

Claims

1. An installation structure of a pump bearing body that is easy to locate and install, comprising a pump body and a pump shaft passing through the pump body. The pump body includes an upper pump body and a lower pump body fixedly connected to each other up and down. On both sides of the lower pump body along the length direction of the pump shaft, bearing supports are respectively formed to protrude outward. A bearing mounting seat rotatably connected to the pump shaft on its corresponding side is mounted on the bearing support. It is characterized in that: The bearing support and the bearing mounting seat are positioned and fitted together through an arc-shaped locating stop with a superior arc shape arranged in the direction around the center line of the pump shaft. A plurality of fastening bolts are evenly spaced in the direction around the center line of the pump shaft at the stop mating position between the bearing support and the bearing mounting seat. The fastening bolts pass through the bearing mounting seat in the direction parallel to the center line of the pump shaft and are threadedly connected to the bearing support to fasten the bearing support and the bearing mounting seat together.

2. The pump bearing body installation structure that is easy to locate and install according to claim 1, characterized in that: The bearing mounting seat includes a seat body. A bearing mounting hole is provided in the seat body in the direction along the center line of the pump shaft. The pump shaft passes through the bearing mounting hole, and a bearing that mates with the bearing mounting hole is sleeved on the shaft body located inside the bearing mounting hole. Sleeve rings for abutting against the inner ring of the bearing to limit the bearing are respectively sleeved on the shaft body of the pump shaft at positions on both sides of the bearing. Bearing covers for shielding the bearing mounting hole on their respective sides are fixedly and sealingly connected to both sides of the seat body in the direction along the center line of the pump shaft. The pump shaft passes through the corresponding bearing cover and is rotationally and sealingly mated with the bearing cover. Retaining rings concentric with the pump shaft are respectively provided at positions on both sides of the bearing inside the bearing mounting hole. The pump shaft passes through the retaining rings, and the retaining rings abut against the outer ring of the bearing on their respective sides. A convex ring that is arranged around the pump shaft and abuts against the retaining ring on its respective side is formed by the inner side surface of the bearing cover protruding.

3. The pump bearing body installation structure that is easy to locate and install according to claim 2, wherein: A lubricating oil cavity is formed between the bearing cover and the seat body. A plurality of oil holes for communicating the inside and outside of the convex ring are provided on the convex ring. A plurality of connecting oil channels for communicating the two lubricating oil cavities are evenly spaced and penetrate through the seat body in the direction around the center line of the bearing mounting hole. The connecting oil channels extend in the direction parallel to the center line of the bearing mounting hole. An oil injection flow channel communicating with the lubricating oil cavity is provided through the top of the seat body. An oil injection bolt for sealing the oil injection flow channel is threadedly connected to the position of the inlet end of the oil injection flow channel. An oil discharge flow channel communicating with the lubricating oil cavity is provided through the bottom of the seat body. An oil discharge bolt for closing the oil discharge flow channel is threadedly connected to the position of the outlet end of the oil discharge flow channel.

4. The pump bearing body installation structure that is easy to position and install according to claim 3, wherein: Circular oil collecting grooves concentric with the bearing mounting hole are respectively recessed on both side surfaces of the seat body in the direction along the center line of the bearing mounting hole. The lowest point of the circular oil collecting groove is lower than the lowest point of the lubricating oil cavity. The connecting oil channel is located at the bottom of the circular oil collecting groove and is close to the outer side wall of the circular oil collecting groove. One of the connecting oil channels communicates with the lowest points of the two circular oil collecting grooves respectively. The oil discharge flow channel extends in the vertical direction and communicates with the connecting oil channel located at the lowest point.

5. The pump bearing body installation structure that is easy to locate and install according to claim 3, characterized in that: The number of the oil injection flow channels is two and they communicate with the two lubricating oil cavities respectively.

6. The pump bearing body installation structure that is easy to position and install according to claim 2, wherein: One side of one of the said shaft sleeves facing away from the said bearing is recessed with a limiting concave hole that communicates with the inner hole of the shaft sleeve and has the same center line as the inner hole of the shaft sleeve. At the position of the pump shaft corresponding to the limiting concave hole, a limiting groove is recessed in a ring shape around the center line direction of the pump shaft. A limiting snap ring concentric with the pump shaft is arranged in the limiting groove. The limiting snap ring extends out of the limiting groove and abuts against the bottom of the limiting groove to limit the shaft sleeve on its side; on one side of the other shaft sleeve facing away from the said bearing, a locking nut is provided. The locking nut is sleeved on the pump shaft and is in threaded cooperation with the pump shaft. The locking nut abuts against the shaft sleeve on its side for limiting.

Images