CN205207248U - Self -lubricating forced air cooling bearing parts - Google Patents

Abstract

The utility model belongs to the technical field of large -scale oil conveying pipeline pump's bearing parts, in particular to self -lubricating forced air cooling bearing parts. Including bearing body, footstep bearing box, antifriction bearing, disc, fan cover body spare and bearing cover, wherein be equipped with footstep bearing box, disc and antifriction bearing in proper order along the axial in the bearing body, the both ends of bearing body are equipped with bearing cover, fan cover body spare set up in the one end of bearing body and with be located the bearing cover of footstep bearing box side connects. The utility model discloses can effectually give off the temperature of bearing operation production and the stirring heat of lubricating oil, can ensure the life of bearing and then guarantee the safety and stability of pump and move.

Description

Self-lubricating air-cooled bearing components

technical field

The utility model belongs to the technical field of bearing components of large oil pipeline pumps, in particular to a self-lubricating air-cooled bearing component.

Background technique

my country's large-scale oil pipeline pumps have always relied on imported foreign oil pipeline pump products, which are basically blank in China. Through the independent design and development of oil pipeline pump products, major breakthroughs have been made in the design and manufacturing technology of pipeline pumps, and the goal of localization has been achieved to replace imports.

Crude oil pipelines generally need to pass through the Hengduan Mountains with complex geological structures, and the geographical environment has no water source, high altitude, and remote pump stations. The existing bearing components cannot satisfy the safe and reliable operation of the pipeline pump device in a larger and harsh environment. In order to ensure the safe, stable and reliable operation of the pipeline pump, it is necessary to design high-power high-speed self-lubricating bearing components without cooling water supply. The temperature rise of the bearing itself and the heat transfer of the lubricating oil all bring difficulties to the design of the bearing components.

Through the calculation of the temperature rise of the bearing, the appropriate bearing model and specification are selected; the oil cavity, heat dissipation area and blade of the bearing body are optimized to meet the operating conditions on site.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a self-lubricating air-cooled bearing component. The bearing component can effectively dissipate the temperature generated by the bearing operation and the stirring heat of the lubricating oil, which can ensure the service life of the bearing and thus ensure the safe and stable operation of the pump.

In order to achieve the above object, the utility model adopts the following technical solutions:

A self-lubricating air-cooled bearing component, including a bearing body, a thrust bearing box, a rolling bearing, an oil throwing ring, a fan cover part and a bearing gland, wherein the bearing body is sequentially provided with a thrust bearing box, an oil throwing ring and For rolling bearings, bearing glands are provided at both ends of the bearing body, and the fan cover component is arranged at one end of the bearing body and connected to the bearing glands on the side of the thrust bearing box. The bearing gland is sealingly connected with the rotating shaft through a bearing isolator.

The thrust bearing box includes a thrust bearing, a bearing outer sleeve, a retaining sleeve, a bearing pressure plate, a bearing inner sleeve and a bearing spacer ring, wherein the bearing outer sleeve is set on the outer side of the bearing inner sleeve, and there are two thrust bearings, two A thrust bearing is arranged between the bearing outer sleeve and the bearing inner sleeve, and a bearing spacer ring is arranged between the two thrust bearings. The outer ends of the two thrust bearings are provided with retaining sleeves, and the outer ends of the retaining sleeves are provided with There is a bearing pressure plate connected with the bearing housing. A disc spring is provided between the bearing pressing plate and the retaining sleeve.

The outer wall of one end of the inner sleeve of the bearing is provided with a radial extension, and the radial extension cooperates with the stop sleeve on the same side to limit the axial position of the inner sleeve of the bearing. The oil throwing ring is installed on the rotating shaft through the oil ring sleeve.

The fan cover part includes a cover, a base, a fan and a fan seat, wherein the base is connected to the bearing cover, the cover is installed on the base, and the cover is provided with a fan seat installed on the base , the fan is mounted on the fan base.

One end of the rolling bearing is connected with a dustproof disk sheathed on the rotating shaft.

The bottom of the bearing body is provided with an oil pool, and the bottom of the oil pool is connected with a heater, and the upper end of the side wall of the oil pool is provided with an oil window and an oil cup communicated with the oil pool.

The top of the bearing body is provided with a vent plug and a temperature transmitter.

Advantage and beneficial effect of the present utility model are:

1. The design concept of this utility model is to ensure the safety and reliability of the bearing during long-term operation, design the bearing body with good heat dissipation effect, the auxiliary fan parts and the bearing separator to ensure that the lubricating oil does not leak.

2. The utility model can realize the temperature transmitter controlled by remote transmission and the electric heater for ensuring the fluidity of lubricating oil in cold weather (outdoor use).

3. The thrust bearing and rolling bearing of the utility model can be selected according to the size of axial load and radial load.

4. The utility model realizes the design and application of high-power air-cooled self-lubricating bearing components, which makes the utility model widely used in long-distance pipeline pumps and fills the blank of domestic high-power air-cooled self-lubricating bearing components.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a structural schematic diagram of the thrust bearing box in the utility model;

Fig. 4 is a schematic structural view of the fan cover part in the utility model;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the structural representation of the bearing separator in the utility model;

Fig. 7 is a functional relationship diagram of the temperature transmitter, the instrument junction box and the alarm remote transmission in the utility model.

Among them, 1 is the bearing body, 2 is the thrust bearing box, 3 is the rolling bearing, 4 is the oil throwing ring, 5 is the fan cover part, 6 is the bearing separator, 7 is the bearing gland, 8 is the oil ring sleeve, 9 is the anti Dust plate, 10 is the vent plug, 11 is the temperature transmitter, 12 is the oil cup, 13 is the oil window, 14 is the heater, 15 is the thrust bearing, 16 is the bearing jacket, 17 is the retaining sleeve, 18 is the disc spring , 19 is a bearing pressure plate, 20 is a limit screw, 21 is a key, 22 is a bearing inner sleeve, 23 is a bearing spacer ring, 24 is a cover, 25 is a base, 26 is a connector, 27 is a fan, 28 is a fan seat, 29 is the moving ring, 30 is the static ring, 31 is the O-ring, 32 is the O-ring of the moving ring, 33 is the O-ring of the static ring, 34 is the foreign matter discharge port, 35 is the lubricating oil catch groove, 36 is the lubricating oil return flow Mouth, 37 is a square shoulder, 38 is a dynamic and static ring interface, 39 oil pools, and 40 is a rotating shaft.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1-2, a self-lubricating air-cooled bearing part provided by the utility model includes a bearing body 1, a thrust bearing box 2, a rolling bearing 3, an oil throwing ring 4, a fan cover part 5 and a bearing gland 7 , wherein the bearing body 1 is provided with a thrust bearing box 2 , an oil throwing ring 4 and a rolling bearing 3 sequentially along the axial direction, and the oil throwing ring 4 is installed on the rotating shaft 40 through the oil ring sleeve 8 . Both ends of the bearing body 1 are provided with bearing glands 7 , and the fan cover part 5 is arranged at one end of the bearing body 1 and connected with the bearing gland 7 on the side of the thrust bearing box 2 . The bearing cover 7 is sealingly connected with the rotating shaft 40 through the bearing isolator 6 .

The bottom of the bearing body 1 is provided with an oil pool 39, the bottom of the oil pool 39 is connected to the heater 14, the upper end of the side wall of the oil pool 39 is provided with an oil window 13 and an oil cup 12 communicating with the oil pool 39 , the outer surface of the oil pool 39 is cast with a plurality of fan fins. The top of the bearing body 1 is provided with a vent plug 10 and a temperature transmitter 11 .

As shown in Figure 3, the thrust bearing box 2 includes a thrust bearing 15, a bearing outer casing 16, a retaining sleeve 17, a bearing pressure plate 19, a bearing inner sleeve 22 and a bearing spacer ring 23, wherein the bearing outer casing 16 is sleeved in the bearing There are two thrust bearings 15 on the outer side of the sleeve 22, and the two thrust bearings 15 are arranged between the bearing outer sleeve 16 and the bearing inner sleeve 22, and a bearing spacer ring is arranged between the two thrust bearings 15 23. The outer ends of the two thrust bearings 15 are provided with retaining sleeves 17, and the outer wall of one end of the bearing inner sleeve 22 is provided with a radial extension, which cooperates with the retaining sleeve 17 on the same side to The bearing inner sleeve 22 is axially limited. A bearing pressing plate 19 connected with the bearing outer shell 16 is provided on the outer side of the retaining sleeve 17 . A disc spring 18 is arranged between the bearing pressing plate 19 and the retaining sleeve 17 , the disc spring 18 presses the thrust bearing 15 , and the bearing pressing plate 19 presses the disc spring 18 . The adjustment gap of the thrust bearing 15 is realized by the pretightening force of the disc springs 18 on both sides, and the lubrication of the bearing is provided by the oil throwing ring 4 sleeved on the oil ring sleeve 8 .

As shown in Figures 4-5, the fan cover part 5 includes a cover 24, a base 25, a fan 27 and a fan seat 28, wherein the base 25 is connected to the bearing cover 7, and the cover 24 is installed on the base 25 Above, the cover 24 is provided with a fan base 28 installed on the base 25 , the fan 27 is installed on the fan base 28 , and the fan base 28 is installed on the rotating shaft 40 .

As shown in FIG. 6, the bearing isolator 6 includes a moving ring 29 and a static ring 30, wherein the static ring 30 is connected to the bearing gland 7, and the static ring 30 and the bearing gland 7 are provided with "VBX" special O-ring 31, the moving ring 29 is connected to the rotating shaft 40 and frictionally connected to the static ring 30, a moving ring O-ring 32 is arranged between the moving ring 29 and the rotating shaft 40, the A stationary ring O-ring 33 is disposed between the stationary ring 30 and the moving ring 29 .

The bearing separator 6 applies the principle of mechanical seal, which solves the problem of absolute wear with the rotating shaft, so it can be used for a long life, and the leakage is almost zero. The service life of the bearing separator 6 is more than 10 times that of ordinary oil seals, reaching more than 8,000 hours. Because it is absolutely stationary with the transmission shaft, it will not wear the shaft. Because it has an energy exciter, it can also prevent external water vapor. Ingress of contaminants prevents bearing lubrication from failing. The bearing separator 6 is a "non-contact" mechanical seal, which does not need to consider the problem of speed. The basic material of the bearing separator is phosphor bronze, which is specially designed to prevent spark explosion after leakage.

In this embodiment, the bearing separator 6 is a commercially available product, purchased from Flowserve Company, and the model is BGARD.

In this embodiment, the rolling bearing 3 is a deep groove ball bearing, and a dustproof plate 9 is provided on one side of the deep groove ball bearing. The thrust bearing 15 adopts two back-to-back radial thrust ball bearings. The oil throwing ring 4 provides lubricating oil to the deep groove ball bearing and the radial thrust ball bearing.

As shown in FIG. 7 , the output current signal of the temperature transmitter 11 is connected to the junction box of the field instrument through a shielded cable, and the signal is transmitted to the central control room. It can monitor the temperature change of lubricating oil at all times and send out an alarm or chain stop signal.

The working process of the present utility model is as follows:

The radial load generated by the weight of the rotor and the volute of the crude oil pipeline pump is borne by the deep groove ball bearing, and the axial load of the rotor is borne by the thrust bearing box 2. The axial load that the thrust bearing 15 can bear Guaranteed by the pre-tightening force exerted by the butterfly spring 18, the oil flinger 4 supplies lubricating oil to the deep groove ball bearing and the thrust bearing 15 respectively; the bearing separator 6 can effectively prevent the lubricating oil from leaking. The bearing body 1 is cast with a larger oil pool 39 and the outer surface is cast with a plurality of fan fins, which can effectively dissipate the heat generated by the bearing operation itself and the temperature rise of the lubricating oil brought by long-term operation. The fan 27 plays a certain auxiliary role in dissipating heat.

In addition, the output current signal of the temperature transmitter 11 is connected to the junction box of the field instrument through a shielded cable, and the signal is transmitted to the central control room. It can monitor the temperature change of lubricating oil at all times and send out an alarm or chain stop signal to remind the operator to check the fault.

The utility model provides a self-lubricating air-cooled bearing component device, which can be used in crude oil pipeline pumps with large power, no cooling water on site, and no lubricating oil station to provide forced lubrication, which reduces the heat dissipation of the bearing itself and the lubrication during long-term operation The oil temperature ensures the safe and stable operation of the equipment.

Claims (10)

1. A self-lubricating air-cooled bearing part, characterized in that it comprises a bearing body (1), a thrust bearing box (2), a rolling bearing (3), an oil throwing ring (4), a fan cover part (5) and a bearing The gland (7), wherein the bearing body (1) is provided with a thrust bearing box (2), an oil throwing ring (4) and a rolling bearing (3) sequentially along the axial direction, and the two ends of the bearing body (1) are arranged There is a bearing cover (7), and the fan cover part (5) is arranged at one end of the bearing body (1) and connected with the bearing cover (7) on the side of the thrust bearing box (2). 2. The self-lubricating air-cooled bearing component according to claim 1, characterized in that, the bearing gland (7) is sealed and connected to the rotating shaft (40) through a bearing isolator (6). 3. The self-lubricating air-cooled bearing part according to claim 2, characterized in that, the thrust bearing box (2) comprises a thrust bearing (15), a bearing outer casing (16), a retaining sleeve (17), a bearing Pressing plate (19), bearing inner sleeve (22) and bearing spacer ring (23), wherein the outer bearing outer sleeve (16) is sleeved on the outer side of the bearing inner sleeve (22), and the thrust bearing (15) is two, two A thrust bearing (15) is arranged between the bearing outer sleeve (16) and the bearing inner sleeve (22), and a bearing spacer ring (23) is arranged between the two thrust bearings (15), and the two thrust bearings The outer end of the bearing (15) is provided with a retaining sleeve (17), and the outside of the retaining sleeve (17) is provided with a bearing pressure plate (19) connected with the bearing outer shell (16). 4. The self-lubricating air-cooled bearing component according to claim 3, characterized in that, a disc spring (18) is provided between the bearing pressure plate (19) and the retaining sleeve (17). 5. The self-lubricating air-cooled bearing part according to claim 3, characterized in that, the outer wall of one end of the bearing inner sleeve (22) is provided with a radially extending portion, and the radially extending portion is connected to the retaining sleeve ( 17) Cooperate to limit the axial position of the bearing inner sleeve (22). 6. The self-lubricating air-cooled bearing component according to claim 2, characterized in that, the oil throwing ring (4) is installed on the rotating shaft (40) through an oil ring sleeve (8). 7. The self-lubricating air-cooled bearing part according to claim 2, characterized in that, the fan cover part (5) comprises a cover (24), a base (25), a fan (27) and a fan seat (28), Wherein the base (25) is connected with the bearing gland (7), the cover (24) is installed on the base (25), and the cover (24) is equipped with The fan base (28), the fan (27) is installed on the fan base (28). 8. The self-lubricating air-cooled bearing component according to claim 2, characterized in that, one end of the rolling bearing (3) is connected with a dustproof disk (9) sleeved on the rotating shaft (40). 9. The self-lubricating air-cooled bearing part according to any one of claims 1-8, characterized in that an oil pool (39) is provided at the bottom of the bearing body (1), and the oil pool (39) The bottom is connected with the heater (14), and the upper end of the side wall of the oil pool (39) is provided with an oil window (13) and an oil cup (12) communicated with the oil pool (39). 10. The self-lubricating air-cooled bearing component according to claim 9, characterized in that, the top of the bearing body (1) is provided with a vent plug (10) and a temperature transmitter (11).