CN203742683U

CN203742683U - Rotating thrust bearing

Info

Publication number: CN203742683U
Application number: CN201420020847.1U
Authority: CN
Inventors: 吴贺松
Original assignee: Two Integrated Science And Technology (changzhou) Co Ltd
Current assignee: Two Integrated Science And Technology (changzhou) Co Ltd
Priority date: 2014-01-14
Filing date: 2014-01-14
Publication date: 2014-07-30
Anticipated expiration: 2024-01-14

Abstract

The utility model discloses a rotating thrust bearing. The rotating thrust bearing comprises a turbine shaft assembly. The turbine shaft assembly is sequentially provided with a pressing impeller, an upper thrust plate, a thrust bearing, a lower thrust plate and a floating bearing. The upper thrust plate is arranged on one side close to the pressing impeller, the lower thrust plate is arranged on one side close to the floating bearing, the upper thrust plate and the lower thrust plate are fixed to a middle body through screws and clamp the thrust bearing, and the thrust bearing rotates through the turbine shaft assembly. According to the mode, the method of dispersing return oil on the two sides in a traditional product can be changed, lubricating oil of the thrust bearing can be centralized to the middle and finally returns to an oil return flange directly, and therefore the risk of leakage of the lubricating oil of a gas compressor is greatly reduced.

Description

Rotation thrust bearing

Technical field

The utility model relates to turbo-charger technical field, particularly relates to a kind of rotation thrust bearing of turbosupercharger.

Background technique

The working principle of turbosupercharger is by engine exhaust, promotes turbine acting, makes and the coaxial gas compressor work being connected of turbine, offers engine high pressure, high-density air, thereby improves Engine torque, power, reduces discharge.

Traditional thrust bearing of turbocharger is all fixed on intermediate, and two sides is designed with oil film wedge face, simultaneously on turbine shaft, is designed with thrust plate, clamp thrust bearing both sides, has realized axial effectively spacing of turbine shaft assembly.

But this design can make thrust bearing both sides have a large amount of lubricant oil ejections, gas compressor leakage of oil is very risky, and the non-constant width of turbo charger speed scope, from several thousand rpms to twenties0000 rpms, oil-leakage-prevention design difficulty is very large, and gas compressor leakage of oil is also one of main failure mode of current pressurized machine.

Model utility content

The technical problem that the utility model mainly solves is to provide a kind of rotation thrust bearing, can change the way that in traditional product, both sides disperse oil return, the lubricant oil of thrust bearing is concentrated toward middle, finally directly got back to oil return flange, greatly reduced the risk of gas compressor oil leakage.

For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of rotation thrust bearing is provided, comprise: turbine shaft assembly, on turbine shaft assembly, be provided with successively press impeller, on thrust plate, thrust bearing, lower thrust plate and floating bearing, upper thrust plate is located near a side of pressing impeller, lower thrust plate is located at the side near floating bearing, described upper thrust plate and lower thrust plate are fixed by screws on intermediate and clamp thrust bearing, and described thrust bearing is rotated by turbine shaft assembly.

In preferred embodiment of the utility model, described turbine shaft assembly is also provided with a sealing plate, and described sealing plate is arranged on presses between impeller and intermediate.

In preferred embodiment of the utility model, described sealing plate is separated with the spacer block of step by one with turbine shaft assembly.

In preferred embodiment of the utility model, the two sides of described thrust bearing along sense of rotation form respectively the high face of oil film wedge face, oil film wedge face is domatic and oil film wedge face bottom surface.

In preferred embodiment of the utility model, described upper thrust plate and lower thrust plate are respectively equipped with oil inlet hole near a side of thrust bearing.

In preferred embodiment of the utility model, on described floating bearing, be provided with floating bearing V-type groove, on described lower thrust plate, be provided with the lower thrust plate V-type face matching with floating bearing V-type groove.

The beneficial effects of the utility model are: the utility model rotation thrust bearing is wrapped between bottom stopper push jack, by the oil inlet hole on bottom stopper push jack, provide lubricant oil, changed the way that in traditional product, both sides disperse oil return, the lubricant oil of thrust bearing is concentrated toward middle, finally directly get back to oil return flange, greatly reduced the risk of gas compressor oil leakage.

Accompanying drawing explanation

In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:

Fig. 1 is the sectional view of rotation thrust bearing one preferred embodiment of the present utility model;

Fig. 2 is the three-dimensional axonometric drawing of rotation thrust bearing one preferred embodiment of the present utility model

Fig. 3 be rotation thrust bearing one preferred embodiment of the present utility model mounting structure schematic diagram;

Fig. 4 is the structural representation of thrust bearing of the present utility model;

Fig. 5 is that the A-A of Fig. 4 is to schematic diagram;

In accompanying drawing, the mark of each parts is as follows: 1, press impeller, 2, intermediate, 3, spacer block, 4, sealing plate, 5, upper thrust plate, 6, thrust bearing, 7, lower thrust plate, 8, floating bearing, 9, turbine shaft assembly, 10, screw, 11, lower thrust plate V-type face, 12, floating bearing V-type groove, 13, thrust bearing oil-return groove, 14, the high face of oil film wedge face, 15, oil film wedge face is domatic, 16, oil film wedge face bottom surface.

Embodiment

Below the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making all other embodiments that obtain under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1 to Fig. 5, the utility model is embodiment comprise:

A kind of rotation thrust bearing, comprise: turbine shaft assembly 9, on turbine shaft assembly 9, be provided with successively press impeller 1, on thrust plate 5, thrust bearing 6, lower thrust plate 7 and floating bearing 8, upper thrust plate 5 is located near a side of pressing impeller 1, lower thrust plate 7 is located at the side near floating bearing 8.

Described turbine shaft assembly 9 is also provided with a sealing plate 4, and described sealing plate 4 is arranged on presses between impeller 1 and intermediate 2, and sealing plate 4 is separated with the spacer block 3 of step by one with turbine shaft assembly 9.

Described thrust bearing 6 is installed on turbine shaft assembly 9, along with turbine shaft assembly 9 rotates together, upper thrust plate 5 and lower thrust plate 7 use screws 10 are fixed on intermediate 2, thrust bearing 6 is clipped between thrust plate 5 and lower thrust plate 7, can effectively carry the thrust load of whole rotor-support-foundation system, make rotary axis axially by effectively spacing simultaneously.

Wherein, the two sides of thrust bearing 6 has processed oil film wedge face, as shown in Figure 4 and Figure 5, along sense of rotation, is respectively the high face 14 of oil film wedge face, oil film wedge face domatic 15 and oil film wedge face bottom surface 16.

Thrust bearing 6 rotarily drive lubricant movement, finally at the high face 14 of oil film wedge face, form effective oil film, avoid, between thrust bearing 6 and bottom stopper push jack, dry friction occurs.

On while bottom stopper push jack, without processing oil wedge surface, guaranteed that the processing of thrust plate is very convenient, also increased the design freedom of thrust plate.

Described upper thrust plate 5 and lower thrust plate 7 are respectively equipped with oil inlet hole near a side of thrust bearing 6, in order to carry out fuel feeding to the oil film wedge face of thrust bearing 6.

Such design has changed the way that in traditional product, both sides disperse oil return, the lubricant oil of thrust bearing 6 was concentrated toward middle (needing lubricated position), finally from thrust bearing oil-return groove 13, directly get back to oil return flange, greatly reduced the risk of gas compressor oil leakage.

In the utility model, on described floating bearing 8, be provided with floating bearing V-type groove 12, on described lower thrust plate 7, be provided with the lower thrust plate V-type face 11 matching with floating bearing V-type groove 12, prevented the rotation of floating bearing 8, improved the operation stability of floating bearing 8.

The beneficial effect of the utility model rotation thrust bearing is:

Thrust bearing 6 is wrapped between bottom stopper push jack, by the oil inlet hole on bottom stopper push jack, provides lubricant oil, has avoided lubricant oil on 6 of a large amount of thrust bearings to be transported to sealing plate 4 simultaneously and has caused oil leakage to arrive the possibility of gas compressor around.

The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. one kind is rotated thrust bearing, it is characterized in that, comprise: turbine shaft assembly, on turbine shaft assembly, be provided with successively press impeller, on thrust plate, thrust bearing, lower thrust plate and floating bearing, upper thrust plate is located near a side of pressing impeller, lower thrust plate is located at the side near floating bearing, and described upper thrust plate and lower thrust plate are fixed by screws on intermediate and clamp thrust bearing, and described thrust bearing is rotated by turbine shaft assembly.

2. rotation thrust bearing according to claim 1, is characterized in that, described turbine shaft assembly is also provided with a sealing plate, and described sealing plate is arranged on presses between impeller and intermediate.

3. rotation thrust bearing according to claim 2, is characterized in that, described sealing plate is separated with the spacer block of step by one with turbine shaft assembly.

4. rotation thrust bearing according to claim 1, is characterized in that, the two sides of described thrust bearing along sense of rotation form respectively the high face of oil film wedge face, oil film wedge face is domatic and oil film wedge face bottom surface.

5. rotation thrust bearing according to claim 1, is characterized in that, described upper thrust plate and lower thrust plate are respectively equipped with oil inlet hole near a side of thrust bearing.

6. rotation thrust bearing according to claim 1, is characterized in that, is provided with floating bearing V-type groove on described floating bearing, is provided with the lower thrust plate V-type face matching with floating bearing V-type groove on described lower thrust plate.