CN213235793U

CN213235793U - Tilting pad thrust bearing with adjustable supporting rigidity

Info

Publication number: CN213235793U
Application number: CN202022075461.9U
Authority: CN
Inventors: 何思聪; 张峰; 严祝明
Original assignee: Zhejiang Zhanggui Bearing Technology Co ltd
Current assignee: Zhejiang Zhanggui Bearing Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-05-18
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a tilting pad thrust bearing with adjustable supporting rigidity relates to the bearing field, and the rigidity of the elastic disk among the tilting pad thrust bearing to current elastic support is invariable unadjustable usually to make this kind of thrust bearing to the relatively poor problem of adaptability of load, the scheme that now proposes, it includes thrust pad, bearing frame, be connected with the oil pipe assembly all around of bearing frame, the bottom of bearing frame is provided with thickness adjusting gasket, through adjusting screw between thickness adjusting gasket and the bearing frame. The utility model discloses novel structure, and through constituting sealed oil pocket between the counter bore on elastic disk and the bearing frame, and oil pocket and oil pipe assembly intercommunication, through the pressure of adjustment hydraulic oil to reach adjustment supporting rigidity, and utilize the nonlinear characteristic who utilizes hydraulic oil compression rigidity, the thrust bearing of this kind of structure can effectively cushion impact, impact load operating modes such as specially adapted explosion, earthquake.

Description

Tilting pad thrust bearing with adjustable supporting rigidity

Technical Field

The utility model relates to a bearing field especially relates to a tilting pad thrust bearing with adjustable supporting rigidity.

Background

The high-speed sliding bearing is mainly applied to working occasions with extremely high working rotating speed, extremely large working load, impact and vibration in the working environment, limited radial space size or split installation and the like. At present, the high-speed sliding bearing is mainly applied to the fields of high-speed gear boxes, high-speed compressors, high-speed motors, steam turbines, generators, expanders, high-speed pumps, turbochargers, aircraft engines and the like.

The existing tilting pad thrust bearing mainly comprises a rigid support, an elastic support, a balance block support and the like, and the tilting pad thrust bearing with the elastic support can realize the uniform load of the pad by means of the deformation of an elastic support structure during stress, so that the processing and mounting precision can be greatly reduced, the bearing capacity of the thrust pad is improved, the service life of the thrust pad is prolonged, and the thrust bearing with the structure is widely applied to occasions with larger thrust pad size and large thrust load.

The tilting pad thrust bearing of the elastic support is designed to solve the problems by only being applicable to working conditions with large load change or large impact load such as explosion, earthquake and the like and not being applicable to working conditions with large load change or large impact load such as explosion, earthquake and the like.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tilting pad thrust bearing with adjustable supporting rigidity has solved the rigidity of the elastic disk among the tilting pad thrust bearing and is invariable unadjustable usually to make tilting pad thrust bearing's the relatively poor problem of suitability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tilting pad thrust bearing with adjustable supporting rigidity, includes thrust pad, bearing frame, be connected with the oil pipe assembly around the bearing frame, the bottom of bearing frame is provided with thickness adjusting shim, through adjusting screw between thickness adjusting shim and the bearing frame, the counter bore has been seted up on the bearing frame, and is provided with the elastic disc in the counter bore, be connected with connecting screw on the elastic disc, be fixed with O shape circle on the elastic disc, the elastic disc sets up between thrust pad and bearing frame, be connected with spacing bolt on the thrust pad.

Preferably, the counter bores on the bearing seats are respectively communicated with the oil pipe assembly.

Preferably, the O-shaped ring is a rubber ring, the elastic disc and a counter bore on the bearing seat form a sealed oil cavity through the O-shaped ring, and the oil cavity is respectively communicated with the oil pipe assembly.

Preferably, a pressure sensor is connected to the thrust pad.

Preferably, a splicing block is fixed on one side of the thrust pad, a splicing groove is formed in the other side of the thrust pad, and the splicing block is matched with the splicing groove in size.

Preferably, an annular groove is formed in the side wall of the elastic disc in the circumferential direction, and the O-ring is embedded in the annular groove in the elastic disc.

The utility model has the advantages that: the utility model discloses, constitute sealed oil pocket through between the counter bore on elastic disc and the bearing frame, and oil pocket and oil pipe assembly intercommunication, through the pressure of adjustment hydraulic oil to reach adjustment supporting rigidity, and utilize the nonlinear special type that utilizes hydraulic oil compression rigidity, the thrust bearing of this kind of structure can effectively cushion the impact, impact load operating mode such as specially adapted explosion, earthquake.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the elastic disc in fig. 1.

Fig. 3 is a schematic view of the thrust pad of fig. 1.

Reference numbers in the figures: 1. a limit bolt; 2. a thrust pad; 21. splicing blocks; 3. a connecting screw; 4. an elastic disc; 5. an O-shaped ring; 6. a bearing seat; 7. an oil pipe assembly; 8. a thickness adjusting shim; 9. and adjusting the screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a tilting pad thrust bearing with adjustable supporting rigidity comprises a thrust pad 2 and a bearing seat 6, wherein an oil pipe assembly 7 is connected around the bearing seat 6, a thickness adjusting gasket 8 is arranged at the bottom of the bearing seat 6, a counter bore is formed in the bearing seat 6 through an adjusting screw 9 between the thickness adjusting gasket 8 and the bearing seat 6, an elastic disc 4 is arranged in the counter bore, a connecting screw 3 is connected to the elastic disc 4, an O-shaped ring 5 is fixed on the elastic disc 4, the elastic disc 4 is arranged between the thrust pad 2 and the bearing seat 6, and a limit bolt 1 is connected to the thrust pad 2.

Referring to fig. 1, the counterbores on the bearing seats 6 are respectively communicated with the oil pipe assemblies 7.

Referring to fig. 1 and 2, the O-ring 5 is a rubber ring, the elastic disc 4 forms a sealed oil cavity with a counter bore on the bearing seat 6 through the O-ring 5, the oil cavity is respectively communicated with the oil pipe assembly 7, the oil cavity is communicated with the oil pipe assembly, and hydraulic oil is introduced through a high-pressure oil station during operation.

The thrust pad 2 is connected with a pressure sensor, and the pressure of hydraulic oil is adjusted according to the thrust load feedback measured by the pressure sensor on the thrust pad, so that the supporting rigidity is adjusted.

Referring to fig. 1 and 3, one side of the thrust pad 2 is fixed with a splicing block 21, the other side of the thrust pad 2 is provided with a splicing groove, the splicing block 21 is matched with the splicing groove in size, and the splicing block 21 on the thrust pad 2 is matched with the splicing groove, so that when the thrust pad 2 is spliced, the splicing block 21 on the adjacent thrust pad 2 is inserted into the splicing groove, and the splicing of the thrust pad 2 is stable.

Referring to fig. 2, an annular groove is formed in the side wall of the elastic disc 4 in the circumferential direction, the O-ring 5 is embedded in the annular groove of the elastic disc 4, the O-ring 5 is embedded in the annular groove through the annular groove of the elastic disc 4, and the O-ring 5 and the elastic disc 4 are stably connected.

The working principle is as follows: the utility model discloses when using, through the counter bore that 6 processing set up on the bearing frame, well elastic disk 4 is installed in the counter bore on bearing

frame

6, 4 external diameter departments of elastic disk are provided with O shape circle 5 and the sealed confined oil pocket that forms of counter bore on the bearing frame 6, oil pocket and oil pipe assembly 7 intercommunication, hydraulic oil is let in through high-pressure oil station during operation, the pressure size of hydraulic oil is adjusted according to the thrust load feedback of the pressure sensor measurement on the thrust tile 2, thereby adjust supporting rigidity, utilize the non-linear special type of hydraulic oil compressive stiffness in addition, the thrust bearing of this kind of structure can effectively cushion the impact, the specially adapted explosion, impact load operating modes such as earthquake.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a tilting pad thrust bearing with adjustable supporting rigidity, includes thrust pad (2), bearing frame (6), its characterized in that, be connected with oil pipe assembly (7) around bearing frame (6), the bottom of bearing frame (6) is provided with thickness adjusting shim (8), through adjusting screw (9) between thickness adjusting shim (8) and bearing frame (6), the counter bore has been seted up on bearing frame (6), and is provided with elastic disc (4) in the counter bore, be connected with connecting screw (3) on elastic disc (4), be fixed with O shape circle (5) on elastic disc (4), elastic disc (4) set up between thrust pad (2) and bearing frame (6), be connected with stop bolt (1) on thrust pad (2).

2. A tilting pad thrust bearing with adjustable supporting rigidity according to claim 1 is characterized in that the counter bores on the bearing seat (6) are respectively communicated with an oil pipe assembly (7).

3. A tilting pad thrust bearing with adjustable supporting rigidity according to claim 1 characterized in that said O-ring (5) is a rubber ring and the elastic disc (4) forms sealed oil chambers with the counter bore of the bearing seat (6) through the O-ring (5), and the oil chambers are respectively communicated with the oil pipe assembly (7).

4. A supporting stiffness adjustable tilting pad thrust bearing according to claim 1 characterized in that a pressure sensor is attached to the thrust pad (2).

5. The tilting pad thrust bearing with adjustable supporting rigidity according to claim 1 is characterized in that a splicing block (21) is fixed on one side of the thrust pad (2), a splicing groove is formed in the other side of the thrust pad (2), and the splicing block (21) is matched with the splicing groove in size.

6. A tilting pad thrust bearing with adjustable supporting rigidity according to claim 3 characterized in that the side wall of the elastic disc (4) is opened with an annular groove along the circumferential direction and the O-ring (5) is embedded in the annular groove on the elastic disc (4).