CN110529493A - It is a kind of to carry thrust bearing - Google Patents
It is a kind of to carry thrust bearing Download PDFInfo
- Publication number
- CN110529493A CN110529493A CN201910781612.1A CN201910781612A CN110529493A CN 110529493 A CN110529493 A CN 110529493A CN 201910781612 A CN201910781612 A CN 201910781612A CN 110529493 A CN110529493 A CN 110529493A
- Authority
- CN
- China
- Prior art keywords
- thrust
- block
- load
- supporting block
- basic ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
Thrust bearing is carried the invention discloses a kind of, including thrust basic ring, the supporting block for carrying block, several settings and being distributed and be sequentially connected by wedge surface with load block gap in a ring groove of the annular groove coaxial on thrust basic ring and with thrust basic ring, several settings in a ring groove is set, it is described carry block include at least one be fixedly connected with thrust basic ring quiet carry block and several are slidably arranged in the dynamic load block in annular groove, wedge surface in the supporting block is towards on the contrary, the supporting block is connected with thrust pad.The beneficial effects of the present invention are: this programme can reflect the discontinuity of thrust pad onto the sliding axially of supporting block, and then it is changed into the circumferential sliding for carrying block by the transmission of cammed surface, the co-operating of block and supporting block is carried by whole circle, the realization of the gap between thrust pad and thrust disc is adaptively adjusted according to the stress condition of thrust pad to carry, and is conducive to avoid the failure of thrust pad overload and extends bearing service life.
Description
Technical field
It is specifically a kind of to carry thrust bearing the present invention relates to thrust bearing technical field.
Background technique
Slide thrust bearing is widely used in high-speed overload equipment as pushed away in Turbo-generator Set because of its large carrying capacity
Power bearing is used to bear the axial thrust of steam power generation and carries out axial limiting to rotor.
Thrust bearing is divided into fixed bush segment thrust bearing and tilting pad thrust bearing, the former is because of multiple fixed thrust pads
Between unbalance stress be used to bear the occasion of low thrust.Tilting thrust bearing is divided into Michell formula and Kingsbury formula, the former
For line support, the latter is point support, and the two design is exquisite, and structure is complicated, for bearing the occasion of medium thrust.
With further increasing for unit thrust, above-mentioned fixed bush segment formula, Michell formula and Kingsbury formula thrust axis
It holds because of multiple tile fragment unbalance stress, line support and the big fatiguability failure of point support contact stress, while bearing arrangement complexity reduces
The reliability and maintainability of equipment.
Summary of the invention
In order to overcome the deficiencies of the prior art, thrust bearing is carried the present invention provides a kind of, for keeping tile fragment uniform
Stress reduces bearing stress, bearing fatigue is avoided to fail.
Technical solution used by the present invention solves the above problems is: a kind of to carry thrust bearing, the thrust including annular
If basic ring, be arranged in the annular groove coaxial on thrust basic ring and with thrust basic ring, several setting load blocks in a ring groove,
The supporting block that dry setting is distributed and is sequentially connected by wedge surface with load block gap in a ring groove, the load block include
At least one be fixedly connected with thrust basic ring it is quiet carry block and several be slidably arranged in annular groove it is dynamic load block, it is described
Supporting block on wedge surface towards on the contrary, the supporting block is connected with thrust pad.
Further, it in order to preferably realize the present invention, is provided in the supporting block parallel with thrust basic ring axis
Strip hole, be provided with the supporting block spacer pin being coupled with strip hole in the annular groove, supporting block passes through supporting block
The cooperation of spacer pin and strip hole is slidably connected along the axial direction of thrust basic ring with thrust basic ring.
Further, in order to preferably realize the present invention, the bottom of the annular groove is provided with several for equal
The load block spacer pin that block limits is carried, dynamic carry is provided with diameter greater than load block spacer pin and limits with block is carried on block
The dynamic load block limit hole that position pin is used cooperatively.
Further, in order to preferably realize the present invention, the thrust pad is rotatably installed in supporting block.
Further, in order to preferably realize the present invention, the thrust pad is connect with supporting block by spherical surface.
Further, in order to preferably realize the present invention, the thrust pad surrounds and forms circular ring shape.
Beneficial effect acquired by this programme is: this programme can be played by supporting block and the cammed surface transmission for carrying block
The effect of dispersion force is convenient on the sliding axially of the discontinuity of thrust pad reflection to supporting block with this, and then passed through
The transmission of cammed surface is changed into the circumferential sliding for carrying block, the co-operating of block and supporting block is carried by whole circle, according to thrust
The stress condition of tile fragment adaptively adjusts the realization of the gap between thrust pad and thrust disc and carries, and is conducive to avoid thrust pad
Overload failure and extension bearing service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this programme；
Fig. 2 is the structural schematic diagram of thrust basic ring；
Fig. 3 is that thrust pad adjusts schematic diagram.
Wherein: 1- thrust disc, 2- wedge surface, 3- thrust pad, 4- is quiet to carry block, and 5- carries block spacer pin, and 6- is dynamic to carry block,
7- supporting block, 8- supporting block spacer pin, 9- thrust basic ring, 91- annular groove.
Specific embodiment
Below with reference to examples and drawings, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment 1:
As shown in Figure 1 and Figure 2, a kind of to carry thrust bearing in the present embodiment, thrust basic ring 9, setting including annular exist
The annular groove 91 coaxial on thrust basic ring 9 and with thrust basic ring 9, several be arranged in load block in annular groove 91, several
The supporting block 7 block gap distribution with load in annular groove 91 and be sequentially connected by wedge surface 2 is set, and the load block includes
At least one be fixedly connected with thrust basic ring 9 it is quiet carry block 4 and several be slidably arranged in annular groove 91 it is dynamic load block
6, the wedge surface 2 in the supporting block 7 is towards on the contrary, the supporting block 7 is connected with thrust pad 3.
In the present embodiment, the axial thrust from thrust disc 1 is born by thrust pad 3, if thrust disc 1 and thrust pad 3
Between gap distribution it is uneven, then the thrust that thrust pad 3 is born is also uneven.
It bears that thrust is transferred to supporting block 7 compared with the thrust pad 3 of high thrust, since supporting block 7 and the dynamic block 6 that carries pass through
Wedge surface 2 is sequentially connected, and under the action of wedge surface 2, supporting block 7 will push the dynamic circumferencial direction fortune for carrying block 6 along thrust basic ring 9
Dynamic, which continues to press on next supporting block 7 under the action of wedge surface 2, it is made to adjust position.It can be passed through with this
The effect of wedge surface 2 adjusts subsequent dynamic load block 6 and supporting block 7, makes load block and 7 co-operating of supporting block of whole circle, to rise
Effect to the gap between adjustment thrust disc 1 and thrust pad 3 is conducive to keep away to enable 3 uniform stressed of thrust pad
Exempt from the single overload of thrust pad 3 and fail, and is conducive to extend bearing service life.
It can be avoided the dynamic stability carried when block 6 excessively frequently slides and reduces this programme use using quiet load block 4
And the precision of adjustment, while avoiding generating biggish noise.
Embodiment 2:
On the basis of the above embodiments, it in the present embodiment, is provided in the supporting block 7 and 9 axis of thrust basic ring
Parallel strip hole, the supporting block spacer pin 8 being coupled with strip hole is provided in the annular groove 91, and supporting block 7 is logical
It crosses supporting block spacer pin 8 and the cooperation of strip hole is slidably connected along the axial direction of thrust basic ring 9 with thrust basic ring 9.
Using the cooperation of strip hole and supporting block spacer pin 8, supporting block 7 can be made along the axis direction of thrust basic ring 9
It is slided in annular groove 91, keeps strip hole identical as the outer diameter of supporting block spacer pin 8, can limited using supporting block spacer pin 8
Supporting block 7 is moved along the circumferencial direction of annular groove 91, is conducive to the precision and stability that improve control.
In the present embodiment, several load block spacer pins 5 for limiting to load block are set in the bottom of annular groove 91,
It is identical as the quantity of block is carried to carry block spacer pin 5, and is equidistantly uniformly distributed.It is quiet to carry on block 4 for being limited with load block
The diameter in the hole that pin 5 is coupled is equal to the diameter for carrying block spacer pin 5, to prevent the quiet block 4 that carries from loosening.
Moving what the bottom setting diameter for carrying block 6 was used cooperatively greater than load block spacer pin 5 and with load block spacer pin 5
It is dynamic to carry block limit hole.It is greater than the diameter for carrying block limit hole and carries block spacer pin 5, can is the dynamic movement for carrying block 6
Reserved space, so that the dynamic block 6 that carries moves under the impetus of supporting block 7 along the circumferential direction of annular groove 91.
Embodiment 3:
On the basis of the above embodiments, in the present embodiment, the thrust pad 3 is rotatably installed in supporting block 7, with
This, when thrust pad 3 is by non-uniform thrust, thrust pad 3 can by rotate with automatic adjusument thrust pad 3 with
The angle of thrust disc 1 or gap enable 3 uniform stressed of thrust pad with this.
It in the present embodiment, connect thrust pad 3 by spherical surface with supporting block 7, thrust bearing shoe valve can be made using spherical surface connection
Block 3 relative to supporting block 7 from multi-angle, it is multi-direction be adjusted, the flexibility of thrust pad 3 can be increased.Utilize spherical surface energy
Enough disperse the pressure that thrust pad 3 is transferred to supporting block 7, is conducive to reduce the abrasion between thrust pad 3 and supporting block 7, keep away
Exempt from the connection structure between thrust pad 3 and supporting block 7 to be pressurized and damage.
The thrust pad 3 surrounds and forms circular ring shape.With this convenient for being used cooperatively with thrust disc 1, thrust pad 3 is avoided
Between interfere, convenient for after training uniformly bear thrust disc 1 thrust.
The supporting block 7 carries block and is designed as the circle coaxial with annular groove 91 close to the two sides of 91 medial surface of annular groove
Cylinder can reduce supporting block 7 and thrust basic ring 9 with this or carry the abrasion between block and thrust basic ring 9, avoid supporting block 7
Or load block is stuck.
In the present embodiment, other contents not described are same as the previously described embodiments, therefore do not repeat.
It is above-described, it is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form,
According to the technical essence of the invention, within the spirit and principles in the present invention, to the above embodiments any simply to repair
Change, equivalent replacement and improvement etc., fall within the scope of protection of the technical scheme of the present invention within.
Claims (6)
1. a kind of carry thrust bearing, it is characterised in that: thrust basic ring (9) including annular, be arranged on thrust basic ring (9) and
The annular groove (91) coaxial with thrust basic ring (9), several load blocks being arranged in annular groove (91), several are arranged in ring
The supporting block (7) block gap distribution with load in shape slot (91) and be sequentially connected by wedge surface (2), the load block include extremely
Few one be fixedly connected with thrust basic ring (9) it is quiet carry block (4) and several be slidably arranged in it is dynamic equal in annular groove (91)
It carries block (6), the wedge surface (2) in the supporting block (7) is towards on the contrary, the supporting block (7) is connected with thrust pad (3).
2. a kind of load thrust bearing according to claim 1, it is characterised in that: be provided in the supporting block (7)
The strip hole parallel with thrust basic ring (9) axis, the annular groove (91) is interior to be provided with the support being coupled with strip hole
Block spacer pin (8), supporting block (7) by the cooperation of supporting block spacer pin (8) and strip hole along thrust basic ring (9) axial direction with
Thrust basic ring (9) is slidably connected.
3. a kind of load thrust bearing according to claim 2, it is characterised in that: the bottom of the annular groove (91) is set
Several load block spacer pins (5) for limiting to load block are equipped with, diameter is provided in dynamic load block (6) and is greater than
The dynamic load block limit hole for carrying block spacer pin (5) and being used cooperatively with load block spacer pin (5).
4. a kind of load thrust bearing according to any one of claim 1-3, it is characterised in that: the thrust pad
(3) it is rotatably installed on supporting block (7).
5. a kind of load thrust bearing according to claim 4, it is characterised in that: the thrust pad (3) and support
Block (7) is connected by spherical surface.
6. a kind of load thrust bearing according to claim 5, it is characterised in that: the thrust pad (3) surrounds shape
At circular ring shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910781612.1A CN110529493A (en) | 2019-08-23 | 2019-08-23 | It is a kind of to carry thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910781612.1A CN110529493A (en) | 2019-08-23 | 2019-08-23 | It is a kind of to carry thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110529493A true CN110529493A (en) | 2019-12-03 |
Family
ID=68662597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910781612.1A Pending CN110529493A (en) | 2019-08-23 | 2019-08-23 | It is a kind of to carry thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110529493A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211903A (en) * | 2020-10-23 | 2021-01-12 | 东方电气集团东方汽轮机有限公司 | Uniform-load sliding bearing |
| CN112503089A (en) * | 2020-12-09 | 2021-03-16 | 百事德机械（江苏）有限公司 | Thrust sliding bearing |
| GB2602808A (en) * | 2021-01-14 | 2022-07-20 | Aker Solutions As | A thrust bearing and a method for reducing wear in a thrust bearing |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2874007A (en) * | 1954-07-01 | 1959-02-17 | Westinghouse Electric Corp | Bearings |
| GB1055838A (en) * | 1963-08-13 | 1967-01-18 | Borg Warner | Thrust bearing assembly |
| FR2053348A1 (en) * | 1969-07-31 | 1971-04-16 | Bbc Sulzer Turbomaschinen | |
| EP0083987A1 (en) * | 1982-01-11 | 1983-07-20 | Waukesha Bearings Corporation | Tilting pad thrust bearing |
| DE19517224A1 (en) * | 1995-05-11 | 1996-11-14 | Renk Ag | Axial plain bearing with slide shoes |
| US5795076A (en) * | 1995-10-13 | 1998-08-18 | Orion Corporation | Tilt pad hydrodynamic bearing for rotating machinery |
| CN102878196A (en) * | 2012-09-28 | 2013-01-16 | 上海大学 | Balance mechanism of thrust bearing |
| CN105190061A (en) * | 2013-03-19 | 2015-12-23 | 三菱日立电力系统株式会社 | Rotary shaft supporting structure |
| CN206738411U (en) * | 2016-12-20 | 2017-12-12 | 湖南崇德工业科技有限公司 | A kind of thrust bearing |
| CN109505860A (en) * | 2019-01-14 | 2019-03-22 | 中国船舶重工集团公司第七0三研究所 | A kind of butterfly spring support tilting thrust bearing |
-
2019
- 2019-08-23 CN CN201910781612.1A patent/CN110529493A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2874007A (en) * | 1954-07-01 | 1959-02-17 | Westinghouse Electric Corp | Bearings |
| GB1055838A (en) * | 1963-08-13 | 1967-01-18 | Borg Warner | Thrust bearing assembly |
| FR2053348A1 (en) * | 1969-07-31 | 1971-04-16 | Bbc Sulzer Turbomaschinen | |
| EP0083987A1 (en) * | 1982-01-11 | 1983-07-20 | Waukesha Bearings Corporation | Tilting pad thrust bearing |
| DE19517224A1 (en) * | 1995-05-11 | 1996-11-14 | Renk Ag | Axial plain bearing with slide shoes |
| US5795076A (en) * | 1995-10-13 | 1998-08-18 | Orion Corporation | Tilt pad hydrodynamic bearing for rotating machinery |
| CN102878196A (en) * | 2012-09-28 | 2013-01-16 | 上海大学 | Balance mechanism of thrust bearing |
| CN105190061A (en) * | 2013-03-19 | 2015-12-23 | 三菱日立电力系统株式会社 | Rotary shaft supporting structure |
| CN206738411U (en) * | 2016-12-20 | 2017-12-12 | 湖南崇德工业科技有限公司 | A kind of thrust bearing |
| CN109505860A (en) * | 2019-01-14 | 2019-03-22 | 中国船舶重工集团公司第七0三研究所 | A kind of butterfly spring support tilting thrust bearing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211903A (en) * | 2020-10-23 | 2021-01-12 | 东方电气集团东方汽轮机有限公司 | Uniform-load sliding bearing |
| CN112211903B (en) * | 2020-10-23 | 2022-05-10 | 东方电气集团东方汽轮机有限公司 | Uniform-load sliding bearing |
| CN112503089A (en) * | 2020-12-09 | 2021-03-16 | 百事德机械（江苏）有限公司 | Thrust sliding bearing |
| GB2602808A (en) * | 2021-01-14 | 2022-07-20 | Aker Solutions As | A thrust bearing and a method for reducing wear in a thrust bearing |
| GB2602808B (en) * | 2021-01-14 | 2023-05-17 | Aker Solutions As | A thrust bearing and a method for reducing wear in a thrust bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191203 |