CN202732699U - Elliptical bearing applied to variable speed hydraulic coupler transmission device - Google Patents
Elliptical bearing applied to variable speed hydraulic coupler transmission device Download PDFInfo
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- CN202732699U CN202732699U CN 201220442786 CN201220442786U CN202732699U CN 202732699 U CN202732699 U CN 202732699U CN 201220442786 CN201220442786 CN 201220442786 CN 201220442786 U CN201220442786 U CN 201220442786U CN 202732699 U CN202732699 U CN 202732699U
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Abstract
The utility model provides an elliptical bearing applied to a variable speed hydraulic coupler transmission device. The elliptical bearing is characterized by being a double-oil-wedge hydraulic dynamic radial bearing and comprising an upper slip and a lower slip, two sides of a subdivision surface of each of the upper slip and the lower slip are both provided with oil grooves, a tin Babbitt metal layer is arranged on the inner surface of the elliptical bearing, and lubricating oil is arranged on the operating surfaces of the elliptical bearing and a journal. The ellipticity of the bearing is Psi/Psi* equal to 2.5, wherein relative gap Psi* is equal to 0.0015, and relative gap of oil wedges is Psi equal to 0.00375. Eccentricity of the oil wedges s is equal to c-c*, wherein gap of least radius c* is equal to Psi* X r, gap of radius c is equal to Psi*r, and r is the radius of the journal. Curvature radius of the oil wedges R is equal to r+s+c* equal to r+c. A stable area of the bearing is expanded, large overload can be borne in limited time, temperature of intake oil is guaranteed to be controlled within a prescribed range, and the transmission device is allowed to operate stably.
Description
Technical field
The utility model relates to a kind of elliptic bearing that is applied in the high-power hydraulic coupler transmission device of high rotating speed, belongs to the hydraulic coupler transmission device technical field.
Background technique
Figure 1 shows that the existing sliding bearing that is applied in the high rotating speed hydraulic coupler transmission device, be simgle oil wedge Hydrodynamic circular radial bearing, as example, according to the diameter of axle and bearing temperature rise, determine the bearing aperture size deviation take the sliding bearing of axle journal diameter of phi 130 (radially watt)
Diameter of axle size deviation
(wherein
According to bearing temperature rise, the decrease 130 of the diameter of axle * 1.1 ‰=-0.143, the manufacturing limit deviation-0.03 of consideration axle).The maximum diameter gap of sliding bearing :+0.04-(0.173)=0.213, minimum diameter gap: 0-(0.143)=0.143.Fig. 2 and Fig. 3 are respectively the partial enlarged drawing at A among Fig. 1, B place, maximum radius gap c=0.213 ÷ 2=0.1065, bearing maximum radius R=(130+0.04) ÷ 2=65.02, axle journal least radius r=(130-0.173) ÷ 2=64.9135.The gap of this type of sliding bearing belongs to simgle oil wedge Hydrodynamic circular radial bearing, and the stable region is little, the poor stability when running up.
The model utility content
The technical problems to be solved in the utility model provides that a kind of stable region is large, good stability is applied to elliptic bearing in the high-power hydraulic coupler transmission device of high rotating speed when running up.
In order to solve the problems of the technologies described above, the technical solution of the utility model provides a kind of elliptic bearing that is applied in the hydraulic coupler transmission device, it is characterized in that: be two oil film wedge Hydrodynamic radial bearings, comprise watt and lower watt, upper and lower watt of split surface both sides are equipped with oil groove, the elliptic bearing internal surface is provided with the tin-base babbit layer, and elliptic bearing and axle journal working surface are provided with lubricant oil; The ovality ψ of bearing/ψ
*=2.5, relative gap ψ wherein
*=0.0015, relative oil film wedge gap ψ=0.00375; Oil film wedge throw of eccentric s=c-c
*, least radius gap c wherein
*=ψ
** r, radius clearance c=ψ * r, r are the axle journal radius; Oil film wedge curvature of face radius R=r+s+c
*=r+c.
Preferably, described oil groove and upper and lower watt of split surface radially angle be 30 °.
Preferably, described lubricant oil is L-TSA32 steam turbine oil or MOBIL mobil oil.
Preferably, described Shang watt material is No. 20 low carbon element structural steel.
Preferably, described lower watt of material is No. 20 low carbon element structural steel.
A kind of rational elliptic bearing geometric parameter of elliptic bearing utilization that is applied in the hydraulic coupler transmission device that the utility model provides, make between elliptic bearing and axle journal working surface and separated fully by oil film, increase supporting region end vent flow and the oil groove side vent flow of bearing, oil temperature be can reduce, antiwhip and bearing capacity guaranteed.Watt body selects No. 20 low carbon element structural steel of high-qualitys to forge, and forgeability is strong.Internal surface spun casting tin-base babbit at bearing shell has higher compressive strength, certain impact toughness and hardness, and plasticity is good, the thermal conductivity excellent corrosion resistance.The material decision bearing of selecting is applicable to high-revolving ability: the energy lubricant film, and the enough anti-deformation under load of intensity energy, enough hardness can be resisted the wearing and tearing of alloy.
The device that the utility model provides has overcome the deficiencies in the prior art, utilize rational elliptic bearing geometric parameter, select appropriate material and lubricant oil, enlarged the stable region of bearing, can in finite time, bear sizable overload, guarantee inlet oil temperature control within the limits prescribed, it is stable that transmission device is run up.
Description of drawings
Fig. 1 is the former sliding bearing schematic representation that is applied in the hydraulic coupler transmission device;
Fig. 2 is A place partial enlarged drawing among Fig. 1;
Fig. 3 is B place partial enlarged drawing among Fig. 1;
A kind of elliptic bearing schematic representation that is applied in the hydraulic coupler transmission device that Fig. 4 provides for the utility model;
Fig. 5 is I place partial enlarged drawing among Fig. 4;
Fig. 6 is II place partial enlarged drawing among Fig. 4;
Fig. 7 is III place partial enlarged drawing among Fig. 4;
Fig. 8 is elliptic bearing internal surface babbitting layer schematic representation in the present embodiment;
Fig. 9 is A-A sectional drawing among Fig. 8
Figure 10 is elliptic bearing assembling schematic representation in the present embodiment.
Description of reference numerals
Upper watt of 1-; Lower watt of 2-; The 3-oil groove; 4-casts babbit layer; No. 1,101-input shaft radially watt; No. 2,102-input shaft radially watt; No. 3,103-input shaft radially watt; No. 4,104-pump impeller radially watt; No. 5,105-pump impeller radially watt; No. 6,106-turbine radially watt; No. 7,107-turbine radially watt.
Embodiment
For the utility model is become apparent, hereby with-preferred embodiment, and cooperate accompanying drawing to be described in detail below.
A kind of elliptic bearing schematic representation that is applied in the hydraulic coupler transmission device that Fig. 4 provides for the utility model, take the elliptic bearing of axle journal diameter of phi 130 No. 5, pump impeller (radially watt 105) as example, elliptic bearing is two oil film wedge Hydrodynamic radial bearings, what adopt is the subdivision structure, is respectively watt 1 and lower watt 2.In conjunction with Fig. 5～Fig. 7, the ovality ψ of bearing/ψ
*=2.5, relative bottom clearance ψ wherein
*=0.0015, relative sideshake ψ=ψ
** 2.5=0.00375; Oil film wedge throw of eccentric s=c-c
*=0.243-0.0975=0.1455, wherein least radius gap (bottom clearance) c
*=ψ
** r=0.0015 * 65=0.0975, radius clearance (sideshake) c=ψ * r=0.00375 * 65=0.243, r is the axle journal radius; Oil film wedge curvature of face radius R=r+s+c
*=r+c=65+0.243=65.243.
In conjunction with Fig. 8, the processing technology of elliptic bearing endoporus is: after the whole processing watt, by size requirement babbitting layer 4; Behind half finish turning, upper and lower watt of line cutting; At upper and lower watt Hough face shimming, spacer thickness is oil film wedge throw of eccentric s * 2=0.1455 * 2=0.291, is fixedly clamped with pin; Proofread and correct the Hough line, the endoporus R=65.243 of finish turning bearing; Remove pad after completion, the radial bearing that this moment, clamping became is elliptic bearing.As shown in Figure 4: longitudinal axis L is 130.486, and minor axis 1 is 130.486-0.291=130.195.In conjunction with Fig. 9, there are enough fuel deliveries to flow into radially 30 ° oil groove 3 of elliptic bearing upper and lower watt of split surface both sides.
Described elliptic bearing structure makes between elliptic bearing and axle journal working surface to be separated fully by oil film, increases supporting region end vent flow and the oil groove side vent flow of bearing, can reduce oil temperature, guarantees antiwhip and bearing capacity.
The material of elliptic bearing: a watt body selects No. 20 low carbon element structural steel of high-quality to forge, and forgeability is strong.Internal surface spun casting tin-base babbit at bearing shell has higher compressive strength, certain impact toughness and hardness, and plasticity is good, the thermal conductivity excellent corrosion resistance.Described material decision bearing is applicable to high-revolving ability: the energy lubricant film, and the enough anti-deformation under load of intensity energy, enough hardness can be resisted the wearing and tearing of alloy.
Figure 10 shows that a kind of elliptic bearing erection drawing that is applied in the high rotating speed hydraulic coupler transmission device of the present utility model.The elliptic bearing of elliptic bearing shown in Figure 2 No. 5, pump impeller (radially watt) and other size is comprised No. 1, input shaft radially watts 101, No. 2, input shaft radially watts 102, No. 3, input shaft radially watts 103, No. 4, pump impeller radially watts 104, No. 6, turbine radially watts 106, No. 7, turbine radially watt 107 grades is installed in separately on the parts, when transmission device runs up, lubricating oil inlet pressure 〉=0.12Mpa, the lubricant oil that adopts: L-TSA32 steam turbine oil or MOBIL mobil oil, transmission device is in the time of average oil temperature tm=55 ℃, the kinetic viscosity η of lubricant oil=0.05Pa.s, rational elliptic bearing structure, enlarge the stable region of bearing, make the gap between bearing and the axle journal working surface, separated fully by oil film, can in finite time, bear sizable overload, guarantee inlet oil temperature control within the limits prescribed, it is stable that transmission device is run up.
Claims (5)
1. elliptic bearing that is applied in the hydraulic coupler transmission device, it is characterized in that: be two oil film wedge Hydrodynamic radial bearings, comprise watt (1) and lower watt (2), upper and lower watt of split surface both sides are equipped with oil groove (3), the elliptic bearing internal surface is provided with tin-base babbit layer (4), and elliptic bearing and axle journal working surface are provided with lubricant oil; The ovality ψ of bearing/ψ
*=2.5, relative gap ψ wherein
*=0.0015, relative oil film wedge gap ψ=0.00375; Oil film wedge throw of eccentric s=c-c
*, least radius gap c wherein
*=ψ
** r, radius clearance c=ψ * r, r are the axle journal radius; Oil film wedge curvature of face radius R=r+s+c
*=r+c.
2. a kind of elliptic bearing that is applied in the hydraulic coupler transmission device as claimed in claim 1 is characterized in that: described oil groove (3) and upper and lower watt of split surface radially angle (α) are 30 °.
3. a kind of elliptic bearing that is applied in the hydraulic coupler transmission device as claimed in claim 1, it is characterized in that: described lubricant oil is L-TSA32 steam turbine oil or MOBIL mobil oil.
4. a kind of elliptic bearing that is applied in the hydraulic coupler transmission device as claimed in claim 1, it is characterized in that: described Shang watt (1) material is No. 20 low carbon element structural steel.
5. a kind of elliptic bearing that is applied in the hydraulic coupler transmission device as claimed in claim 1, it is characterized in that: described lower watt of (2) material is No. 20 low carbon element structural steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442786 CN202732699U (en) | 2012-08-31 | 2012-08-31 | Elliptical bearing applied to variable speed hydraulic coupler transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442786 CN202732699U (en) | 2012-08-31 | 2012-08-31 | Elliptical bearing applied to variable speed hydraulic coupler transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732699U true CN202732699U (en) | 2013-02-13 |
Family
ID=47658401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220442786 Expired - Fee Related CN202732699U (en) | 2012-08-31 | 2012-08-31 | Elliptical bearing applied to variable speed hydraulic coupler transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732699U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817906A (en) * | 2012-08-31 | 2012-12-12 | 上海交大南洋机电科技有限公司 | Elliptical bearing applied to transmission device of speed-regulating hydraulic coupler |
| CN107218299A (en) * | 2017-08-03 | 2017-09-29 | 中冶赛迪工程技术股份有限公司 | Laying head ellipse filmatic bearing structure |
-
2012
- 2012-08-31 CN CN 201220442786 patent/CN202732699U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817906A (en) * | 2012-08-31 | 2012-12-12 | 上海交大南洋机电科技有限公司 | Elliptical bearing applied to transmission device of speed-regulating hydraulic coupler |
| CN107218299A (en) * | 2017-08-03 | 2017-09-29 | 中冶赛迪工程技术股份有限公司 | Laying head ellipse filmatic bearing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20180831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |