CN220416029U

CN220416029U - Bearing cooling device

Info

Publication number: CN220416029U
Application number: CN202322107483.2U
Authority: CN
Inventors: 陈姣姣; 黎海雁; 邓怀泽; 聂涛
Original assignee: Kunming Jiahe Technology Co ltd; Yunnan Fluid Planning And Research Institute Co ltd
Current assignee: Kunming Jiahe Technology Co ltd; Yunnan Fluid Planning And Research Institute Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-01-30
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a bearing cooling device, which relates to the technical field of fluid conveying machinery and comprises a rotating shaft, a bearing box, a cooling component, a self-circulation component and a monitoring component; a lubrication cavity is arranged in the bearing box; the cooling component comprises a cooling cavity, a water inlet and a water outlet; the water inlet is communicated with the water outlet; the self-circulation assembly comprises an oil return groove and an oil return hole, wherein the oil return groove and the oil return hole are respectively arranged at two sides of the bearing and are mutually communicated, and the bearing is driven by the rotating shaft to rotate so as to form an oil return path among the oil return groove, the oil return hole and the lubricating cavity; the monitoring component comprises a vibration transmitter and a temperature transmitter; an oil return channel is formed by arranging an oil return groove and an oil return hole in the lubricating oil cavity, so that bearings are effectively lubricated, and uniform lubrication is realized; the upper lubricating cavity is wrapped by the cooling cavity, so that the lubricating oil and the bearing are rapidly cooled, and the working temperature of the bearing is effectively reduced; vibration transmitter and temperature transmitter can real-time supervision bearing operating condition.

Description

Bearing cooling device

Technical Field

The utility model relates to the technical field of mechanical power, in particular to the technical field of fluid conveying machinery, and particularly relates to a bearing cooling device.

Background

In the bearing device, the bearing is damaged due to the fact that the temperature of the bearing is increased due to the fact that the axial force and the radial force of the bearing working unit generate vibration, the friction force generated by machining and installation errors and the friction generated by environmental dust particles, and then the whole unit device is damaged, and great economic loss is caused.

The utility model with the patent number of CN207583703U discloses a horizontal pump bearing cooling structure, which comprises a lubricating oil tank, a coil type cooling pipe, a bearing assembly, a bearing box body and a cooling box, wherein a water inlet connecting pipe and a water outlet connecting pipe are connected above the cooling box, heat in lubricating oil in the lubricating oil tank is exchanged with cooling water flowing in the coil type cooling pipe firstly, lubricating oil after heat exchange and cooling enters the bearing assembly in a natural flow or forced flow circulation mode, heat of a friction part of the bearing is taken out and released into the oil tank, and then the lubricating oil enters the bearing for lubrication again. A water inlet connecting pipe is connected above the cooling box at the periphery of the bearing box body, and externally connected cooling water flows between the periphery of the bearing box body and the cooling box, exchanges heat with the rolling bearing through the metal box wall and takes away heat; in the running process of the bearing, the main heating area is the bearing body, so that the best heat dissipation carrier is used when the lubricating oil is in direct contact with the bearing, in the patent, the coil type cold tube is used for carrying out heat exchange on the lubricating oil to realize cooling, but the lubricating oil after heat exchange is difficult to quickly enter the bearing for internal circulation, so that the heat on the bearing is exchanged.

Disclosure of Invention

The utility model mainly aims to provide a bearing cooling device which is used for solving the problem that the existing bearing cooling device is difficult to realize self-circulation of lubricating oil in the running process of a bearing, so that the bearing is cooled.

In order to achieve the above object, the present utility model provides a bearing cooling device, comprising a rotating shaft, a bearing, and a bearing housing; the bearing is arranged in the bearing box; the rotating shaft is connected with the inner ring of the bearing; a lubrication cavity is arranged in the bearing box; further comprises:

the cooling assembly comprises a cooling cavity, a water inlet and a water outlet, wherein the cooling cavity is arranged at intervals with the lubricating cavity, and the water inlet and the water outlet are communicated with the cooling cavity; a water outlet is also arranged on the cooling cavity, and a cooling medium is arranged in the cooling cavity; the water inlets are provided with a plurality of groups and are communicated with the water outlets so as to enable cooling medium in the cooling cavity to circularly flow;

the self-circulation assembly comprises an oil return groove and an oil return hole which are arranged in the lubricating cavity; the oil return grooves and the oil return holes are respectively arranged at two sides of the bearing and are communicated with each other; the bearing is driven by the rotating shaft to rotate so as to form an oil return path among the oil return groove, the oil return hole and the lubricating cavity;

the monitoring assembly comprises vibration transmitters and temperature transmitters which are arranged on the bearing box at intervals; the vibration transmitter is connected with the outer wall of the bearing box and is used for monitoring vibration of the bearing box; the temperature transmitter is connected with the outer wall of the bearing and is used for monitoring the temperature of the bearing.

As a further improvement of the utility model, the lubrication cavity is in a circular arc shape consistent with the outer ring of the bearing, and the lower half part of the lubrication cavity is provided with a baffle plate to form a cooling cavity.

As a further improvement of the utility model, the utility model also comprises an oil circuit component; the oil circuit assembly comprises a first oil supplementing circuit and a second oil supplementing circuit which are symmetrically arranged on the bearing box, and an oil-gas separation channel and an oil discharge channel which are arranged on the bearing box; the first oil supplementing way, the second oil supplementing way, the oil-gas separation channel and the oil discharging channel are respectively communicated with the lubricating cavity.

As a further improvement of the utility model, the water inlets are symmetrically provided with two groups; the water outlets are positioned at the top end of the bearing box, and two groups of water outlets are arranged.

As a further improvement of the utility model, the bearing box is respectively provided with a bearing vibration measuring port and a bearing temperature measuring port; the temperature transmitter and the vibration transmitter are respectively arranged in the bearing temperature measuring port and the bearing vibration measuring port.

The beneficial effects of the utility model are as follows:

an oil return channel is formed by arranging an oil return groove and an oil return hole in the lubricating oil cavity, so that bearings are effectively lubricated, and uniform lubrication is realized; the upper lubricating cavity is wrapped by the cooling cavity, so that the lubricating oil and the bearing are rapidly cooled, and the working temperature of the bearing is effectively reduced; the temperature transmitter and the vibration transmitter are arranged, so that the working state of the bearing can be monitored in real time.

Drawings

FIG. 1 is a schematic cross-sectional view of a bearing cooling device according to the present utility model;

FIG. 2 is a cross-sectional view of A-A of FIG. 1 of a bearing cooling apparatus according to the present utility model;

reference numerals illustrate:

1. a bearing housing; 2. a bearing end cap; 3. a connecting bolt; 4. a stop washer; 5. a seal ring; 6. a bearing; 7. a circlip; 8. a rotation shaft; 9. a bearing retaining sleeve; 10. a cooling chamber; 11. a lubrication chamber; 12. a water inlet; 13. a water outlet; 14. a water outlet; 15. an oil return groove; 16. an oil return hole; 17. an oil return path; 18. a bearing vibration measuring port; 19. a bearing temperature measuring port; 20. a partition plate; 21. a first oil supplementing path; 22. a second oil supplementing path; 23. an oil-gas separation channel; 24. an oil discharge channel; 25. and a flow guiding rib.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the described embodiments are merely some, but not all embodiments of the present utility model. Embodiments and features of embodiments in this application may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In one embodiment, referring to fig. 1, a bearing cooling device of the present utility model includes a rotating shaft 8, a bearing 6, a bearing housing 1, a cooling component, a self-circulation component, and a monitoring component.

Wherein, referring to fig. 1 and 2, the bearing 6 is installed in the bearing housing 1, and the rotating shaft 8 is connected with the inner ring of the bearing 6; a lubrication cavity 11 is arranged in the bearing box 1; the cooling assembly comprises a cooling cavity 10, a water inlet 12 and a water outlet 13, wherein the cooling cavity 10 is arranged at intervals with the lubricating cavity 11, and the water inlet 12 is communicated with the cooling cavity 10; a water outlet 14 is also arranged on the cooling cavity 10, and a cooling medium is arranged in the cooling cavity 10; the water inlets 12 are provided with a plurality of groups and are communicated with the water outlets 13 so as to enable the cooling medium in the cooling cavity 10 to circularly flow; the self-circulation assembly comprises an oil return groove 15 and an oil return hole 16 which are arranged in the lubricating cavity 11, wherein the oil return groove 15 and the oil return hole 16 are respectively arranged at two sides of the bearing 6 and are mutually communicated, and the bearing 6 is driven by the rotating shaft 8 to rotate so as to form an oil return path 17 among the oil return groove 15, the oil return hole 16 and the lubricating cavity 11; the monitoring assembly comprises a temperature transmitter and a vibration transmitter which are arranged on the bearing box 1 at intervals; the vibration transmitter is connected with the outer wall of the bearing box 1 and is used for monitoring vibration of the bearing box 1; the temperature transmitter is connected with the outer wall of the bearing 6 and is used for monitoring the temperature of the bearing 6.

Preferably, a bearing retaining sleeve 9 is arranged between the bearing box 1 and the rotating shaft 8; a stop washer 4 is arranged at one end of the bearing 6 far away from the bearing stop sleeve 9, a bearing end cover 2 is arranged outside the bearing box 1 through a connecting bolt 3, and a sealing ring 5 is arranged between the bearing end cover 2 and the bearing box 1; a circlip 7 is arranged between the bearing 6 and the lubrication chamber 11.

Specifically, referring to fig. 2, the lubrication chamber 11 is in a circular arc shape consistent with the outer ring of the bearing 6, and a partition plate 20 is arranged at the lower half part of the lubrication chamber 11 to form a cooling chamber 10.

Preferably, the partition 20 is circular arc-shaped and welded in the lubrication chamber 11.

In the above arrangement, the cooling medium (such as water) is injected into the cooling cavity 10, so that the lubricating oil in the lubricating cavity 11 is cooled, the lubricating oil enters the bearing 6 through the oil return path 17 under the rotation of the bearing 6 driven by the rotating shaft 8, and circularly flows in the oil return path 17 and the lubricating cavity 11, the lubricating oil cools the bearing 6, and the cooling medium cools the lubricating oil, so that the circulating cooling of the bearing 6 is realized.

Further, referring to fig. 2, the oil circuit assembly further comprises an oil circuit assembly, wherein the oil circuit assembly comprises a first oil supplementing circuit 21 and a second oil supplementing circuit 22 which are symmetrically arranged on the bearing box 1, and an oil-gas separation channel 23 and an oil discharging channel 24 which are arranged on the bearing box 1; the first oil supplementing passage 21, the second oil supplementing passage 22, the oil-gas separation passage 23, and the oil discharge passage 24 are respectively communicated with the lubrication chamber 11.

Preferably, the oil-gas separation channel 23 is disposed at the uppermost end of the bearing housing 1, the oil drain channel 24 is disposed at the lowermost end of the bearing housing 1, and the first oil supplementing channel 21 and the second oil supplementing channel 22 are disposed in the middle of the bearing housing 1.

In the above arrangement, the lubrication chamber 11 is replenished with oil by the first oil replenishing portion and the second oil replenishing portion, and the gas in the lubrication box can be discharged from the oil-gas separation passage 23, and when the lubrication oil in the lubrication chamber 11 is replaced, the waste lubrication oil can be discharged from the oil discharge passage 24.

Further, referring to fig. 2, the water inlets 12 are symmetrically arranged in two groups, the water outlets 13 are positioned at the top end of the bearing box 1, and the water outlets 13 are arranged in two groups.

Preferably, the water inlet 12 is arranged in the middle of the bearing housing 1, and the water outlet 14 is arranged at the bottom end of the bearing housing 1.

Further, referring to fig. 2, a flow guiding rib 25 is provided in the cooling chamber 10.

In the arrangement, the external cooling medium is led into the cooling cavity 10 through the two groups of water inlets 12 to cool the lubricating oil in the lubricating cavity 11 and is discharged along the water outlets 13, and the cooling medium in the opposite cooling boxes circulates to ensure that the cooling medium in the cooling cavity 10 is in a low-temperature state, so that the cooling effect on smooth oil is ensured; the flow guide ribs 25 in the cooling cavity 10 effectively prevent mixed flow and vortex from being generated when cooling water is pressurized.

Further, referring to fig. 2, a bearing vibration measuring port 18 and a bearing temperature measuring port 19 are respectively arranged on the bearing box 1; the temperature transmitter and the vibration transmitter are respectively arranged in the bearing temperature measuring port 19 and the bearing vibration measuring port 18.

Preferably, the bearing vibration measuring port 18 and the bearing temperature measuring port 19 are arranged at intervals.

It should be noted that, temperature transmitter and vibration transmitter are all current structure, in this embodiment, do not put forward the improvement to its structure, only restrict its mounted position.

In this embodiment, bearing housing 9 passes through the key to be fixed on rotation axis 8, sealing washer 5 is used for sealed lubrication chamber 11's lubricating oil, prevent revealing, automatic oil filling mouth on bearing box 1 is used for installing automatic oil filling ware, form automatic oil filling operation, the oil mist separator of taking the filter screen is installed to the oil-gas separation mouth, can refuel and filter lubricating oil, can get rid of the air in the lubricating oil pocket simultaneously, bearing vibration measuring mouth 18 and bearing temperature measuring mouth 19 install temperature transmitter and vibration transmitter, implement monitoring bearing 6 operating condition, the casing vibration measuring mouth is installed vibration measuring transmitter and is used for measuring the vibration of bearing box 1 shell, the oil discharge mouth is used for installing the lubricating oil monitor, implement monitoring lubricating oil quality, outlet 14 is used for when stopping the maintenance, the drainage of cooling water cavity cooling water.

In the working process of the bearing 6, external cooling water is poured into the cooling cavity 10 through the water inlet 12, so that lubricating oil in the lubricating cavity 11 is cooled, in the rotating process of the bearing 6, the lubricating oil is driven to circularly flow along the oil return path 17, so that the cooled lubricating oil in the lubricating cavity 11 enters the bearing 6 to cool the bearing 6, and the lubricating oil carrying high temperature in the bearing 6 enters the lubricating cavity 11 along the oil return path 17 to cool the bearing 6 in real time.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A bearing cooling device comprises a rotating shaft (8), a bearing (6) and a bearing box (1); the bearing (6) is arranged in the bearing box (1); the rotating shaft (8) is connected with the inner ring of the bearing (6); a lubrication cavity (11) is arranged in the bearing box (1); characterized by further comprising:

the cooling assembly comprises a cooling cavity (10) which is arranged at intervals with the lubricating cavity (11), a water inlet (12) and a water outlet (13) which are communicated with the cooling cavity (10); a water outlet (14) is also arranged on the cooling cavity (10), and a cooling medium is arranged in the cooling cavity (10); the water inlets (12) are provided with a plurality of groups and are communicated with the water outlets (13) so as to enable cooling medium in the cooling cavity (10) to circularly flow;

the self-circulation assembly comprises an oil return groove (15) and an oil return hole (16) which are arranged in the lubricating cavity (11); the oil return grooves (15) and the oil return holes (16) are respectively arranged at two sides of the bearing (6) and are communicated with each other; the bearing (6) is driven by the rotating shaft (8) to rotate, so that an oil return channel (17) is formed among the oil return groove (15), the oil return hole (16) and the lubricating cavity (11);

the monitoring assembly comprises vibration transmitters and temperature transmitters which are arranged on the bearing box (1) at intervals; the vibration transmitter is connected with the outer wall of the bearing box (1) and is used for monitoring vibration of the bearing box (1); the temperature transmitter is connected with the outer wall of the bearing (6) and is used for monitoring the temperature of the bearing (6).

2. A bearing cooling arrangement according to claim 1, characterized in that: the lubricating cavity (11) is in a circular arc shape consistent with the outer ring of the bearing (6), and a partition plate (20) is arranged at the lower half part of the lubricating cavity (11) to form a cooling cavity (10).

3. A bearing cooling arrangement according to claim 2, characterized in that: the device also comprises an oil circuit component; the oil circuit assembly comprises a first oil supplementing circuit (21) and a second oil supplementing circuit (22) which are symmetrically arranged on the bearing box (1), and an oil-gas separation channel (23) and an oil discharge channel (24) which are arranged on the bearing box (1); the first oil supplementing way (21), the second oil supplementing way (22), the oil-gas separation channel (23) and the oil discharging channel (24) are respectively communicated with the lubricating cavity (11).

4. A bearing cooling arrangement according to claim 3, characterized in that: the water inlets (12) are symmetrically provided with two groups; the water outlets (13) are positioned at the top end of the bearing box (1), and two groups of water outlets (13) are arranged.

5. A bearing cooling apparatus according to claim 4, wherein: the bearing box (1) is respectively provided with a bearing vibration measuring port (18) and a bearing temperature measuring port (19); the temperature transmitter and the vibration transmitter are respectively arranged in the bearing temperature measuring port (19) and the bearing vibration measuring port (18).