CN111120506B

CN111120506B - Double-pivot sliding bearing

Info

Publication number: CN111120506B
Application number: CN202010069371.0A
Authority: CN
Inventors: 杨玉敏; 蔡超志; 李旭
Original assignee: Hebei University of Engineering
Current assignee: Hebei University of Engineering
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-11-23
Anticipated expiration: 2040-01-21
Also published as: CN111120506A

Abstract

The invention discloses a double-fulcrum sliding bearing, and relates to the field of sliding bearings. This bearing includes the bearing inner race, the outside cover of bearing inner race is equipped with the bearing inner race, bearing inner race and bearing inner race are fixed through the pin, the inlayer of bearing inner race is fixed with a plurality of bearing pads, and a plurality of bearing pads make up to be circular equipartition and encircle the setting, the bearing pad is connected with bearing inner race and bearing inner race through two mechanical support. The bearing uses two mechanical supports and uses the mechanical supports as an oil injection device, thereby saving materials, improving the bearing capacity and reducing the loss and oil consumption at the branch point.

Description

Double-pivot sliding bearing

Technical Field

The invention relates to the field of sliding bearings, in particular to a double-fulcrum sliding bearing.

Background

Compared with other sliding bearings, the single mechanical-supported tilting pad sliding bearing has higher stability and is suitable for occasions with high speed and light load; however, with the higher and higher requirements of modern production, higher requirements are put on the performance of all aspects of the sliding bearing. In this context, the disadvantages of sliding bearings with a single mechanical support also manifest themselves. The high cost brought by the complicated structure, the insufficient bearing capacity, the friction loss at the fulcrum and the large demand of the oil supply make the fulcrum-variable sliding bearing more and more unable to meet the industrial production requirements.

In addition, the existing oil supply technology enables lubricating oil to directly enter the pad through the bearing body, so that insufficient oil supply of the lubricating oil often occurs, the loss of the bearing is increased, and the service life of the bearing is shortened.

Disclosure of Invention

The invention aims to solve the technical problem of providing a double-fulcrum sliding bearing which adopts two mechanical supports and uses the mechanical supports as an oil injection device, thereby saving materials, improving the bearing capacity and reducing the loss and oil consumption at the fulcrum.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a dual fulcrum sliding bearing comprising:

the bearing inner race, the outside cover of bearing inner race is equipped with the bearing inner race, bearing inner race and bearing inner race pass through the pin fixed, the inlayer of bearing inner race is fixed with a plurality of bearing pads, and a plurality of bearing pads make up to be circular equipartition and encircle the setting, the bearing pad is connected with bearing inner race and bearing inner race through two mechanical braces.

The mechanical support is including fixing the supporting seat on the bearing inner race, the supporting seat is towards the inboard coaxial bracing piece that is fixed with, oil spout passageway has been seted up to the middle part axial of supporting seat and bracing piece, the other end of bracing piece is fixed with the connector, set up on the bearing tile piece with the connector assorted hold the recess, the connector is spherical structure, and its orientation is inboard one side in the middle part seted up the oil storage recess, oil storage recess and oil spout passageway intercommunication, the oil outlet that one end and oil storage recess intercommunication was seted up in the contact department with the oil storage recess to the bearing tile piece, the other end of oil outlet pierces through the bearing tile piece and sets up towards the inboard.

The further technical proposal is that the oil storage groove is of a funnel-shaped structure, and the opening is arranged towards the inner side.

A further technical scheme is that the supporting seat, the supporting rod and the connector are integrally formed.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

two mechanical supports are arranged on each bearing pad, and compared with the traditional bearing pad with a single mechanical support, the bearing pad disperses the received force to two supporting points, so that the friction loss at the supporting points can be greatly reduced, and the bearing capacity of the pad is improved.

In addition, the mechanical support is also connected among the bearing outer ring, the bearing inner ring and the bearing pad as an oil injection device, so that oil can be injected from the mechanical support, the oil supply amount is increased, and the bearing pad is fully lubricated. And lubricating oil does not directly enter the bearing pad block through the bearing body any longer, so that the condition of overhigh lubricating oil temperature is avoided, the loss of the bearing is reduced, and the service life of the bearing is prolonged.

And, seted up the oil storage recess on the connector, the oil storage recess has played the effect of temporary storage lubricating oil, can cushion to realize the mixture of cold and hot oil.

In addition, the mechanical support is used as an oil injection device, the normal oil inlet and outlet work requirement is met, and meanwhile the function of supporting the movement of the bearing pads is achieved, so that the structure of the traditional single-fulcrum tilting pad bearing is simplified, the use of materials is reduced, and the processing and the installation are simpler and more convenient.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a portion a in fig. 1.

Detailed description of the preferred embodiments

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the description of the embodiments given herein without making any inventive step, are within the scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1-2, a double-pivot sliding bearing comprises a bearing inner ring 1, the outside cover of the bearing inner ring 1 is provided with a bearing outer ring 2, the bearing outer ring 2 and the bearing inner ring 1 are fixed through a pin 10, the inner layer of the bearing inner ring 1 is fixed with a plurality of bearing pads 3, the plurality of bearing pads 3 are combined to be a circular uniform distribution and surround the arrangement, and the bearing pads 3 are connected with the bearing inner ring 1 and the bearing outer ring 2 through two mechanical supports 4. Mechanical support 4 is including fixing the supporting seat 41 on bearing inner race 2, supporting seat 41 is towards inboard coaxial being fixed with bracing piece 42, oil spout passageway 43 has been seted up to the middle part axial of supporting seat 41 and bracing piece 42, the other end of bracing piece 42 is fixed with connector 44, seted up on the bearing shoe 3 with connector 44 assorted holding groove 31, connector 44 is spherical structure, and oil storage recess 440 has been seted up at the middle part in its one side towards the inboard, oil storage recess 440 and oil spout passageway 43 intercommunication, bearing shoe 3 sets up the oil outlet 30 of one end and oil storage recess 440 intercommunication in the contact department with oil storage recess 440, the other end of oil outlet 30 pierces through bearing shoe 3 and sets up towards the inboard.

The number of the bearing pads 3 in the bearing is more than or equal to 3, each bearing pad 3 is provided with two mechanical supports 4, the outer side surface of each bearing pad 3 is provided with an accommodating groove 31, the bearing pads 3 and the mechanical supports 4 are connected, and the contact form is spherical contact. Therefore, the bearing pad 3 can move in a certain direction while being supported by the mechanical support 4, so that the position of the bearing pad can be adjusted in time, and the stability in the operation process is ensured.

In the bearing oil supply operation, the oil supply device is filled with oil through the support seat 41 of the mechanical support 4, and the lubricating oil passes through the oil injection channel 43 and finally enters the gap between the inner surface and the central shaft of the bearing pad 3 from the oil outlet hole 30. With the continuous improvement of the rotating speed, an internal oil film is formed, meanwhile, the pressure is also increased continuously, the pressure borne by the bearing pad 3 is increased continuously, and only one mechanical support 4 bears the pressure of the bearing pad 3 for the traditional sliding bearing with a single mechanical support 4, so that the friction loss is serious, and the bearing capacity is low; for the double-fulcrum sliding bearing, the pressure of the bearing pad 3 is shared by the two mechanical supports 4, and the supporting force is increased as much as possible, so that the original friction loss at the fulcrum is reduced, and larger pressure can be borne.

Two mechanical supports 4 are arranged on each bearing pad 3, and compared with the traditional bearing pad 3 with a single mechanical support 4, the bearing pad disperses the received force to two supporting points, so that the friction loss at the supporting points can be greatly reduced, and the bearing capacity of the pad is improved. In addition, the mechanical support 4 is also connected among the bearing outer ring 2, the bearing inner ring 1 and the bearing pads 3 as an oil injection device, so that oil can be injected from the mechanical support 4, the oil supply amount is increased, and the bearing pads 3 are fully lubricated. And lubricating oil no longer directly gets into bearing pad 3 through the bearing body, has avoided the too high condition of lubricating oil temperature, has reduced the loss of bearing, has improved the life of bearing.

In addition, an oil storage groove 440 is formed in the connector 44, and the oil storage groove 440 is of a funnel-shaped structure, plays a role in temporarily storing lubricating oil, can buffer the lubricating oil, and flows the lubricating oil into a bearing gap in a divergent manner, so that the cold oil and the hot oil are mixed. In addition, the mechanical support 4 is used as an oil injection device, the normal oil inlet and outlet work requirements are met, meanwhile, the movement of the bearing pad block 3 is supported, and the whole mechanical support 4 is integrally formed, so that the structure of the traditional single-fulcrum tilting pad bearing is simplified, the use of materials is reduced, and the machining and the installation are simpler and more convenient.

The above is only a preferred embodiment of the invention, and any simple modifications, variations and equivalents of the invention may be made by anyone in light of the above teachings and fall within the scope of the invention.

Claims

1. A dual fulcrum sliding bearing comprising:

the bearing comprises a bearing inner ring (1), wherein a bearing outer ring (2) is sleeved outside the bearing inner ring (1), the bearing outer ring (2) and the bearing inner ring (1) are fixed through pins (10), a plurality of bearing pads (3) are fixed on the inner layer of the bearing inner ring (1), the bearing pads (3) are combined to be circularly and uniformly distributed and arranged in a surrounding mode, and the bearing pads (3) are connected with the bearing inner ring (1) and the bearing outer ring (2) through two mechanical supports (4);

the mechanical support (4) comprises a supporting seat (41) fixed on the bearing outer ring (2), a support rod (42) is coaxially fixed on the support seat (41) towards the inner side, an oil injection channel (43) is axially arranged in the middle of the support seat (41) and the support rod (42), the other end of the supporting rod (42) is fixed with a connector (44), the bearing pad block (3) is provided with an accommodating groove (31) matched with the connector (44), the connector (44) is of a spherical structure, the middle part of one surface of the oil storage tank facing the inner side is provided with an oil storage groove (440), the oil storage groove (440) is communicated with an oil injection channel (43), an oil outlet hole (30) with one end communicated with the oil storage groove (440) is arranged at the contact part of the bearing block (3) and the oil storage groove (440), the other end of the oil outlet hole (30) penetrates through the bearing pad block (3) and is arranged towards the inner side.

2. A sliding bearing according to claim 1, characterised in that the oil reservoir groove (440) is funnel-shaped with the opening facing inwards.

3. A sliding bearing according to claim 1, wherein the bearing seat (41), the support bar (42) and the connecting head (44) are integrally formed.