CN215214357U - Blocking flow damping sliding bearing with honeycomb holes - Google Patents
Blocking flow damping sliding bearing with honeycomb holes Download PDFInfo
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- CN215214357U CN215214357U CN202023185200.9U CN202023185200U CN215214357U CN 215214357 U CN215214357 U CN 215214357U CN 202023185200 U CN202023185200 U CN 202023185200U CN 215214357 U CN215214357 U CN 215214357U
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Abstract
An object of the utility model is to provide a take blocking of honeycomb holes to flow damping slide bearing, including bearing base member, fixed tile, rotor, bearing base member and rotor are connected through fixed tile or tilting pad, set up lubricated liquid storage space in the bearing base member, and lubricated liquid storage space runs through the bearing base member along the axial of rotor, and lubricated liquid storage space's cross-section is honeycomb hole. The utility model discloses because lubricated liquid storage space's existence for take honeycomb holes to block to flow slide bearing and become elastic support, and increased base member elasticity, make lubricated liquid storage space easily take place deformation under the extruded effect of rotor, wherein lubricated liquid can consequently be extruded or inhale the storage space and produce and flow, nevertheless because lubricated liquid storage space is long and thin poroid structure, lubricated liquid can receive great frictional force when wherein flowing, thereby form continuous stable damping force and reach the damping purpose with consuming rotor vibration energy.
Description
Technical Field
The utility model relates to a vibration control structure of high-speed rotating machinery, specifically speaking are bearings.
Background
With the rapid development of high-speed rotating machinery such as gear boxes, large-scale turbo generator units, compressors, centrifugal pumps and the like, the requirements on vibration control in equipment operation are gradually improved. Especially, the rotor in the rotating machinery is easy to vibrate due to the reasons of misalignment, poor dynamic balance precision and the like, so that the normal operation of the equipment is influenced, and even major safety accidents are caused in serious cases, thereby causing huge personnel and property losses.
In order to solve the problem of vibration in engineering, the following methods are generally adopted for ensuring the normal operation of equipment: firstly, the centering and balancing precision of the rotor is improved, and the generation of vibration is reduced from the source; secondly, a damper is arranged to increase the damping of the rotor system, so that the energy generated by the vibration of the rotor is absorbed, the vibration of the equipment is reduced, and the stability is improved; and thirdly, changing the mass of the system or applying an elastic support to change the rigidity of the system, further changing the natural frequency of the system, keeping the critical rotating speed of the rotor away from the working rotating speed of the rotor, and reducing the vibration response of the rotor system.
The sliding bearing commonly used in the high-speed rotary machine includes a radial sliding bearing, a split radial sliding bearing, a multi-oil-wedge sliding bearing, a thrust sliding bearing, and the like. The sliding bearing has the advantages of certain vibration reduction capability, high precision, small abrasion of the liquid friction bearing and the like. Therefore, the device is widely applied to high-speed and heavy-load conditions. However, the conventional sliding bearing has limited damping effect, and the damping effect is insufficient when the vibration is too large.
Disclosure of Invention
An object of the utility model is to provide a can provide good support for high-speed rotatory rotor, can utilize the damping that the blocking flows the production again to reduce because of the rotor is not centering, the uneven vibration that produces block a damping slide bearing that flows of taking honeycomb holes.
The purpose of the utility model is realized like this:
the utility model relates to a take blocking of honeycomb holes to flow damping slide bearing, characterized by: including bearing base member, fixed tile, rotor, the bearing base member passes through fixed tile with the rotor and is connected, sets up lubricated liquid storage space in the bearing base member, and lubricated liquid storage space runs through the bearing base member along the axial of rotor, and the cross-section of lubricated liquid storage space is cellular hole.
The utility model relates to a take blocking of honeycomb holes to flow damping slide bearing, characterized by: the bearing base body is connected with the rotor through the tilting pad, a supporting point is arranged in the tilting pad, a positioning pin is arranged at a position, corresponding to the supporting point on the tilting pad, on the bearing base body, a lubricating liquid storage space is arranged in the bearing base body, the lubricating liquid storage space penetrates through the bearing base body along the axial direction of the rotor, and the cross section of the lubricating liquid storage space is a honeycomb-shaped hole.
The utility model discloses can also include:
1. the honeycomb-shaped holes are square, hexagonal, triangular or rhombic.
2. The vibration generated by the rotating rotor is transmitted to the bearing base body through the fixed tile, the lubricating liquid in the lubricating liquid storage space is extruded or sucked into the storage space to flow through the squeezing action of the rotor, and the lubricating liquid is subjected to friction force when flowing in the storage space to form continuous and stable damping force, so that the energy generated by the vibration of the rotor is absorbed.
3. The vibration generated by the rotating rotor is transmitted to the bearing base body through the tilting pad, the lubricating liquid in the lubricating liquid storage space is extruded or sucked into the storage space through the squeezing action of the rotor to generate flow, and the lubricating liquid is subjected to friction force when flowing in the storage space to form continuous and stable damping force, so that the energy generated by the vibration of the rotor is absorbed.
The utility model has the advantages that: the utility model discloses the base member is provided with lubricated liquid storage space to the axial along the rotor runs through the base member. Because the existence of the lubricating liquid storage space, the flow blocking sliding bearing with the honeycomb holes becomes an elastic support, the elasticity of the base body is increased, the lubricating liquid storage space is easy to deform under the extrusion effect of the rotor, the lubricating liquid in the sliding bearing can be extruded or sucked into the storage space to flow, but the lubricating liquid can be subjected to larger friction force when flowing due to the fact that the lubricating liquid storage space is of a slender hole-shaped structure, and therefore continuous and stable damping force is formed to consume the vibration energy of the rotor to achieve the vibration reduction purpose. The utility model discloses collect and block a damping, elastic support and slide bearing as an organic whole, can provide good support for high-speed rotatory rotor, can utilize again to block the damping that flows the production and reduce because of the rotor is not centering, the vibration of uneven production.
The utility model discloses slide bearing with honeycomb structure, the size of its honeycomb hole should be moderate, if honeycomb hole is too big, the business turn over hole that lubricated liquid can be more free reaches the anticipatory effect of acting as blocking the flow, can not restrain the vibration. If the honeycomb holes are too small, the lubricating fluid hardly enters the honeycomb holes, and at this time, the honeycomb holes of the sliding bearing have only an elastic structure and cannot exhibit the effect of suppressing vibration.
The sliding bearing with the honeycomb holes in the blocking flow sliding bearing comprises all types of sliding bearings such as a radial sliding bearing, a split radial sliding bearing, a multi-oil wedge sliding bearing and a thrust sliding bearing.
Drawings
FIG. 1 is a schematic axial view of an embodiment of a sliding bearing with honeycomb holes and blocking flow fixed shoes in accordance with the present invention;
FIG. 2 is a schematic view of an embodiment of a sliding bearing with honeycomb holes for blocking flow and tilting pads according to the present invention from an axial view;
FIG. 3 is an example of a choked flow tilting pad sliding bearing with honeycomb holes (the honeycomb holes are square in shape);
FIG. 4 is an example of a choked flow tilting pad sliding bearing with honeycomb holes (the honeycomb holes are hexagonal in shape);
FIG. 5 is an example of a choked flow tilting pad sliding bearing with honeycomb holes (the honeycomb holes are triangular in shape);
fig. 6 shows an example of a sliding bearing with honeycomb holes (the shape of the honeycomb holes is diamond) for a blocking flow tilting pad.
Detailed Description
The invention will be described in more detail below by way of example with reference to the accompanying drawings:
with reference to fig. 1-6, the sliding bearing with honeycomb holes and fixed flow blocking shoes of the present invention comprises a bearing base 1. The bearing base body 1 is connected with a rotor 4 through a fixed tile 3, and the rotor is supported on the bearing base body 1. The rotor 4 is a rotating body similar to a rotating shaft in a rotating machine, and can generate severe vibration due to faults such as misalignment, unbalance, collision and abrasion and the like in a high-speed rotating process. The bearing base body 1 is provided with a lubricating liquid reservoir space 2 and penetrates the base body 1 in the axial direction of the rotor 4. The vibration energy that rotor 4 produced when high-speed rotation transmits bearing base body 1 through fixed tile 3, receives the effect of rotor extrusion, and the lubricated liquid storage space takes place to warp, and the lubricated liquid in it can consequently be extruded or inhale the storage space and produce the flow, nevertheless because lubricated liquid storage space is elongated hole column structure, the lubricated liquid can receive great frictional force when wherein flows to form continuous stable damping force, and then absorb vibration energy, in order to reach the purpose of damping. The lubricating fluid storage space 2 penetrates the bearing base body 1 and is used for storing required lubricating fluid.
Fig. 2 is an axial view (i.e. a view along the axial direction of the rotor 8) of the blocking flow tilting pad sliding bearing with the honeycomb holes. As can be seen from fig. 1 and 2, the lubricating fluid reserving spaces 2 and 5 have a groove structure with a circular cross section. And the lubricating fluid reservoir spaces 2, 5 penetrate the base 1 in the axial direction of the rotors 4, 8. It can be seen that in this view the lubricating fluid storage spaces 5 are uniformly distributed annularly in the form of a plurality of concentric circles in the radial direction, with the axis direction of the rotor 4 being the axis. And because the existence of the lubricating liquid storage spaces 2 and 5, the flow blocking sliding bearing with the honeycomb holes becomes an elastic support, the elasticity of the matrix is increased, and the lubricating liquid storage space is easy to deform under the extrusion action of the rotor. The operation of the above-described embodiment of the present invention will be briefly described below.
When the rotors 4 and 8 have faults such as unbalance, collision and abrasion and the like, the base body 1 becomes an elastic support due to the existence of the lubricating liquid storage spaces 2 and 5 in the bearing base body 1, violent vibration generated by the rotors 4 and 8 rotating at high speed is transmitted to the bearing base body 1 through the fixed pads 3 and the tilting pads 7, the lubricating liquid in the lubricating liquid storage spaces 2 and 5 is extruded or sucked into the storage spaces to flow through the squeezing action of the rotors, but the lubricating liquid receives large friction force when flowing in the storage spaces due to the fact that the lubricating liquid storage spaces are of long and thin hole-shaped structures, continuous and stable damping force is formed, and the damping force is generated to absorb energy generated by vibration of the rotors 4 and 8, so that the purpose of vibration reduction is achieved.
In the above process, the lubricating oil injected into the bearing causes the lubricating oil reservoir spaces 2, 5 to store enough lubricating oil so that the choked flow is continuously maintained.
Claims (3)
1. A blocking flow damping sliding bearing with honeycomb holes is characterized in that: including bearing base member, fixed tile, rotor, the bearing base member passes through fixed tile with the rotor and is connected, sets up lubricated liquid storage space in the bearing base member, and lubricated liquid storage space runs through the bearing base member along the axial of rotor, and the cross-section of lubricated liquid storage space is cellular hole.
2. A blocking flow damping sliding bearing with honeycomb holes is characterized in that: the bearing base body is connected with the rotor through the tilting pad, a supporting point is arranged in the tilting pad, a positioning pin is arranged at a position, corresponding to the supporting point on the tilting pad, on the bearing base body, a lubricating liquid storage space is arranged in the bearing base body, the lubricating liquid storage space penetrates through the bearing base body along the axial direction of the rotor, and the cross section of the lubricating liquid storage space is a honeycomb-shaped hole.
3. A choked flow damping sliding bearing with honeycomb holes as claimed in claim 1 or 2, characterized in that: the honeycomb-shaped holes are square, hexagonal, triangular or rhombic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023185200.9U CN215214357U (en) | 2020-12-25 | 2020-12-25 | Blocking flow damping sliding bearing with honeycomb holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023185200.9U CN215214357U (en) | 2020-12-25 | 2020-12-25 | Blocking flow damping sliding bearing with honeycomb holes |
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| Publication Number | Publication Date |
|---|---|
| CN215214357U true CN215214357U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023185200.9U Active CN215214357U (en) | 2020-12-25 | 2020-12-25 | Blocking flow damping sliding bearing with honeycomb holes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163659A (en) * | 2022-05-09 | 2022-10-11 | 中国船舶重工集团公司第七一九研究所 | Anti-impact water-lubricated bearing and ship propulsion system |
-
2020
- 2020-12-25 CN CN202023185200.9U patent/CN215214357U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163659A (en) * | 2022-05-09 | 2022-10-11 | 中国船舶重工集团公司第七一九研究所 | Anti-impact water-lubricated bearing and ship propulsion system |
| CN115163659B (en) * | 2022-05-09 | 2024-04-16 | 中国船舶重工集团公司第七一九研究所 | Impact-resistant water-lubricated bearing and ship propulsion system |
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