CN216077698U

CN216077698U - Vertical middle-open pump grease lubrication bearing supporting device

Info

Publication number: CN216077698U
Application number: CN202122270257.7U
Authority: CN
Inventors: 马家炯; 王得安; 马春来; 李宁
Original assignee: Xylem Europe GmbH
Current assignee: Xylem Europe GmbH
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-03-18
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses a vertical middle-open pump grease lubricating bearing supporting device, which comprises: the bearing device comprises an upper thrust bearing device and a lower radial bearing device, wherein the upper thrust bearing device is sleeved on the pump shaft and is close to the upper end of the pump shaft, and the lower radial bearing device is arranged at the lower end of the pump shaft and seals the lower end of the pump shaft. The utility model relates to a vertical middle-open pump grease lubricated bearing supporting device which has the advantages of large bearing capacity, stable operation, easy maintenance and the like, can be widely applied to a dry vertical centrifugal pump with rotors supported at two ends, has the functions of water resistance and dust prevention, has certain functions in the aspects of online lubricating grease filling and online bearing monitoring, avoids oil shortage and dry grinding, and overcomes the defect that the bearings are damaged due to more seizure problems.

Description

Vertical middle-open pump grease lubrication bearing supporting device

Technical Field

The utility model relates to the technical field of lubricating devices, in particular to a vertical type middle-open pump grease lubricating bearing supporting device.

Background

The split pump is a hydraulic element for converting a low-pressure medium into a high-pressure medium, and therefore, good sealing performance is required, and the sealing of the pump body is an important component of the split pump. In the water pump use, it can be toward scattering outward along with the temperature rising to discover bearing rolling grease, can lack oil dry grinding, and it is more to make the bearing appear the problem of seizure to cause the bearing trouble to scrap. Therefore, it is necessary to provide a grease lubricated bearing supporting device for a vertical split pump, so as to at least partially solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content of the present invention is not intended to define key features or essential features of the claimed solution, nor is it intended to be used to limit the scope of the claimed solution.

To at least partially solve the above problems, the present invention provides a vertical middle opening pump grease lubricated bearing supporting device, comprising: the upper thrust bearing device is sleeved on a pump shaft of the vertical split pump and is close to the upper end of the pump shaft, and the lower radial bearing device is arranged at the lower end of the pump shaft and seals the lower end of the pump shaft.

According to the support device for the grease lubricated bearing of the vertical split pump, the upper thrust bearing device comprises an upper bearing chamber, the upper bearing chamber is sleeved on the pump shaft, the upper end of the upper bearing chamber is provided with a first dustproof cover, the lower end of the upper bearing chamber is provided with a second dustproof cover, a double-locking nut, a thrust bearing and a first shaft sleeve are arranged inside the upper bearing chamber, and the first dustproof cover, the double-locking nut, the thrust bearing, the first shaft sleeve and the second dustproof cover are sleeved on the pump shaft from top to bottom.

According to the grease lubrication bearing supporting device for the vertical split pump, the upper bearing chamber comprises a first bearing cover and a first bearing body, and the first bearing cover is connected with the first bearing body through a plurality of first bolts and a plurality of first pins.

According to the support device for the vertical split-pump grease-lubricated bearing, disclosed by the embodiment of the utility model, the first remote temperature measuring instrument is arranged on the upper bearing chamber, and the first remote temperature measuring instrument is arranged on the first bearing cover and corresponds to the thrust bearing.

According to the support device for the vertical middle-open pump grease lubrication bearing, two first oil filling cups are arranged on the upper bearing chamber, are arranged on the first bearing cover and are located on two sides of the first remote temperature measuring instrument.

According to the vertical middle-open pump grease lubrication bearing supporting device provided by the embodiment of the utility model, the lower radial bearing device comprises a lower bearing chamber, the lower bearing chamber is sleeved on the pump shaft and is positioned at the lower end of the pump shaft, the upper end of the lower bearing chamber is provided with a second shaft sleeve and a third dust prevention cover, the second shaft sleeve is sleeved in the third dust prevention cover, the inner part of the lower bearing chamber is provided with a radial bearing, the lower end of the lower bearing chamber is provided with a blocking cover, and the second shaft sleeve and the radial bearing are sleeved on the pump shaft.

According to the vertical type middle-open pump grease lubricating bearing supporting device provided by the embodiment of the utility model, the lower bearing chamber comprises a second bearing cover and a second bearing body, and the second bearing cover is connected with the second bearing body through a plurality of second bolts and a plurality of second pins.

According to the support device for the vertical split-pump grease-lubricated bearing, provided by the embodiment of the utility model, the lower bearing chamber is provided with the second remote temperature measuring instrument, and the second remote temperature measuring instrument is arranged on the second bearing cover and corresponds to the radial bearing.

According to the support device for the vertical type middle opening pump grease lubricating bearing, two second oil filling cups are arranged on the lower bearing chamber, are arranged on the second bearing cover and are located on two sides of the second remote temperature measuring instrument.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

the utility model relates to a vertical middle-open pump grease lubricated bearing supporting device which has the advantages of large bearing capacity, stable operation, easy maintenance and the like, can be widely applied to a dry vertical centrifugal pump with rotors supported at two ends, has the functions of water resistance and dust prevention, has certain functions in the aspects of online lubricating grease filling and online bearing monitoring, avoids oil shortage and dry grinding, and overcomes the defect that the bearings are damaged due to more seizure problems.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of a vertical type pump of the present invention

Fig. 2 is a schematic structural view of the upper thrust bearing device of the present invention.

FIG. 3 is a schematic cross-sectional view taken along the direction A-A in FIG. 2 according to the present invention.

Fig. 4 is a schematic view of the structure of the lower radial bearing device of the present invention.

FIG. 5 is a schematic cross-sectional view taken along the direction B-B in FIG. 4 according to the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the utility model with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1 to 5, the present invention provides a vertical middle opening pump grease lubricated bearing supporting device, including: the upper thrust bearing device 200 is sleeved on the pump shaft 15 of the vertical split pump 100 and is close to the upper end of the pump shaft 15, and the lower radial bearing device 300 is arranged at the lower end of the pump shaft 15 and seals the lower end of the pump shaft 15.

In one embodiment, the upper thrust bearing device includes an upper bearing chamber, the upper bearing chamber is sleeved on the pump shaft, the upper end of the upper bearing chamber is provided with a first dust cap 5, the lower end of the upper bearing chamber is provided with a second dust cap 10, the inner part of the upper bearing chamber is provided with a double-locking nut 8, a thrust bearing 3 and a first shaft sleeve 7, and the first dust cap 5, the double-locking nut 8, the thrust bearing 3, the first shaft sleeve 7 and the second dust cap 10 are sleeved on the pump shaft 15 from top to bottom.

Further, the upper bearing chamber comprises a first bearing cover 1 and a first bearing body 2, and the first bearing cover 1 is connected with the first bearing body 2 through a plurality of first bolts 4 and a plurality of first pins 17.

Furthermore, a first remote temperature measuring instrument 6 is arranged on the upper bearing chamber, and the first remote temperature measuring instrument 6 is arranged on the first bearing cover 1 and corresponds to the thrust bearing 3.

Further, two first oil filling cups 16 are arranged on the upper bearing chamber, and the two first oil filling cups 16 are arranged on the first bearing cover 1 and are positioned at two sides of the first remote temperature measuring instrument 6.

In one embodiment, the lower radial bearing device includes a lower bearing chamber, the lower bearing chamber is sleeved on the pump shaft 15 and located at the lower end of the pump shaft 15, the upper end of the lower bearing chamber is provided with a second shaft sleeve 11 and a third dust cover 12, the second shaft sleeve 11 is sleeved in the third dust cover 12, the inner part of the lower bearing chamber is provided with a radial bearing 14, the lower end of the lower bearing chamber is provided with a blocking cover 18, and the second shaft sleeve 11 and the radial bearing 14 are sleeved on the pump shaft 15.

Further, the lower bearing chamber comprises a second bearing cover 1a and a second bearing body 2a, and the second bearing cover 1a is connected with the second bearing body 2a through a plurality of second bolts 4a and a plurality of second pins 17 a.

Further, a second remote temperature measuring instrument 6a is arranged on the lower bearing chamber, and the second remote temperature measuring instrument 6a is arranged on the second bearing cover 1a and corresponds to the radial bearing 14.

Furthermore, two second oil filling cups 16a are arranged on the lower bearing chamber, and the two second oil filling cups 16a are arranged on the second bearing cover 1a and positioned at two sides of the second remote temperature measuring instrument 6a

The working principle of the vertical middle opening pump grease lubricating bearing supporting device is as follows:

the utility model provides a grease lubricating bearing supporting device for a vertical split pump, wherein the bearing supporting device comprises an upper thrust bearing device 200 and a lower radial bearing device 300, and the upper thrust bearing device 200 and the lower radial bearing device 300 are respectively arranged at the upper end and the lower end of a vertical split pump 100; the upper thrust bearing device comprises an upper bearing chamber, the upper bearing chamber is formed by connecting a first bearing cover 1 and a first bearing body 2 with a first pin 17 through a first bolt 4, a thrust bearing 3 is installed inside the upper bearing chamber, the thrust bearing 3 provides a supporting effect in the axial direction and the radial direction on a pump shaft 15, and the bearing clearance of the upper bearing chamber is ensured by the processing precision of the bearing chamber, on-site adjustment is not needed, and the assembly difficulty is reduced; the thrust bearing 3 and the pump shaft 15 are installed in an interference fit mode, the pump shaft 15 is locked by the double locking nuts 8, the inner ring of the thrust bearing 3 and the first shaft sleeve 7 are reliably fixed on the pump shaft 15 in two locking modes, and therefore the clockwise rotation and the anticlockwise rotation of the pump shaft 15 can be met. The first dustproof cover 5 is arranged at the upper end of the upper bearing chamber, the second dustproof cover 10 is arranged at the lower end of the upper bearing chamber, and the assembly is convenient and reliable. The first dust cap 5 is provided with a water outlet (not shown) which forms a labyrinth with the first sleeve 7 to effectively prevent the leakage of the medium in the pump from being ejected into the bearing device to damage the thrust bearing 3. Meanwhile, the first oil filling cup 16 is arranged on the first bearing cover 1 and located above the thrust bearing 3, lubricating oil is effectively filled, the first remote temperature measuring instrument 6 is arranged on the first bearing cover 1 and is not arranged on the outer side of the thrust bearing 3, and the first remote temperature measuring instrument is in full contact with the thrust bearing 3 to monitor the running state of the thrust bearing 3 accurately in real time.

The lower radial bearing device comprises a lower bearing chamber, the lower bearing chamber is formed by connecting a second bearing cover 1a and a second bearing body 2a with a second pin 17a through a second bolt 4a, a radial bearing is arranged in the lower bearing chamber, and the lower bearing chamber radially fixes and axially limits the outer ring of the radial bearing 14; the radial bearing 14 and the pump shaft 15 are in interference fit, so that an inner ring of the radial bearing 14 and the second shaft sleeve 7a are reliably fixed on the pump shaft 15, and therefore both clockwise rotation and anticlockwise rotation of the pump shaft 15 can be met. The second dust cover 12 and the blocking cover 18 are fixed by the lower bearing chamber which is split axially, and the assembly is convenient and reliable. An O-shaped sealing ring 13 is arranged between the second dustproof cover 12 and the lower bearing chamber, and forms a labyrinth with the shaft sleeve 11 to effectively prevent a medium in the pump from leaking into the bearing device and damaging a radial bearing 14; the second oil cup 16a is installed on the second bearing body 2a and located above the radial bearing 14 for effectively filling lubricating oil, and the second remote temperature measuring instrument 6a is installed on the outer side of the radial bearing 14 and fully contacts with the radial bearing 14 to monitor the running state of the radial bearing 14 accurately in real time.

The utility model at least comprises the following beneficial effects: the utility model relates to a vertical middle-open pump grease lubricated bearing supporting device which has the advantages of large bearing capacity, stable operation, easy maintenance and the like, can be widely applied to a dry vertical centrifugal pump with rotors supported at two ends, has the functions of water resistance and dust prevention, has certain functions in the aspects of online lubricating grease filling and online bearing monitoring, avoids oil shortage and dry grinding, and overcomes the defect that the bearings are damaged due to more seizure problems.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

While embodiments of the utility model have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. The utility model provides a vertical middle-open pump grease lubrication bearing strutting arrangement which characterized in that includes:

the centrifugal pump comprises an upper thrust bearing device (200) and a lower radial bearing device (300), wherein the upper thrust bearing device (200) is sleeved on a pump shaft (15) of a vertical split pump (100) and is close to the upper end of the pump shaft (15), and the lower radial bearing device (300) is arranged at the lower end of the pump shaft (15) and seals the lower end of the pump shaft (15).

2. The vertical middle-open pump grease lubricated bearing supporting device according to claim 1, wherein the upper thrust bearing device comprises an upper bearing chamber, the upper bearing chamber is sleeved on the pump shaft, a first dust cover (5) is arranged at the upper end of the upper bearing chamber, a second dust cover (10) is arranged at the lower end of the upper bearing chamber, a double-locking nut (8), a thrust bearing (3) and a first shaft sleeve (7) are arranged inside the upper bearing chamber, and the first dust cover (5), the double-locking nut (8), the thrust bearing (3), the first shaft sleeve (7) and the second dust cover (10) are sleeved on the pump shaft (15) from top to bottom.

3. The vertical split-bearing grease-lubricated bearing supporting device for pump in claim 2, wherein the upper bearing chamber comprises a first bearing cover (1) and a first bearing body (2), and the first bearing cover (1) is connected with the first bearing body (2) through a plurality of first bolts (4) and a plurality of first pins (17).

4. The support device for the grease-lubricated bearing of the vertical split-type pump as claimed in claim 3, wherein a first remote temperature measuring instrument (6) is arranged on the upper bearing chamber, and the first remote temperature measuring instrument (6) is arranged on the first bearing cover (1) and corresponds to the thrust bearing (3).

5. The vertical split-pump grease-lubricated bearing supporting device for the middle opening pump as claimed in claim 4, wherein two first oil filling cups (16) are arranged on the upper bearing chamber, and the two first oil filling cups (16) are arranged on the first bearing cover (1) and are positioned at two sides of the first remote temperature measuring instrument (6).

6. The vertical middle-open pump grease lubricated bearing supporting device according to claim 1, wherein the lower radial bearing device comprises a lower bearing chamber, the lower bearing chamber is sleeved on the pump shaft (15) and located at the lower end of the pump shaft (15), a second shaft sleeve (11) and a third dust prevention cover (12) are arranged at the upper end of the lower bearing chamber, the second shaft sleeve (11) is sleeved in the third dust prevention cover (12), a radial bearing (14) is arranged inside the second shaft sleeve, a blocking cover (18) is arranged at the lower end of the second shaft sleeve, and the second shaft sleeve (11) and the radial bearing (14) are sleeved on the pump shaft (15).

7. The vertical split-bearing grease-lubricated bearing supporting device for pump in claim 6, wherein the lower bearing chamber comprises a second bearing cover (1a) and a second bearing body (2a), and the second bearing cover (1a) is connected with the second bearing body (2a) through a plurality of second bolts (4a) and a plurality of second pins (17 a).

8. The vertical split-bearing grease-lubricated bearing supporting device for the pump as claimed in claim 6, wherein a second remote temperature measuring instrument (6a) is arranged on the lower bearing chamber, and the second remote temperature measuring instrument (6a) is arranged on the second bearing cover (1a) and corresponds to the radial bearing (14).

9. The vertical split-pump grease-lubricated bearing supporting device according to claim 8, wherein two second oil filling cups (16a) are arranged on the lower bearing chamber, and the two second oil filling cups (16a) are arranged on the second bearing cover (1a) and located on two sides of the second remote temperature measuring instrument (6 a).