CN102251142A - Spherical hinge material for travel motor - Google Patents
Spherical hinge material for travel motor Download PDFInfo
- Publication number
- CN102251142A CN102251142A CN 201110208515 CN201110208515A CN102251142A CN 102251142 A CN102251142 A CN 102251142A CN 201110208515 CN201110208515 CN 201110208515 CN 201110208515 A CN201110208515 A CN 201110208515A CN 102251142 A CN102251142 A CN 102251142A
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- China
- Prior art keywords
- ball pivot
- spherical hinge
- travel motor
- running motor
- motor
- 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
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- Pivots And Pivotal Connections (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention provides a spherical hinge material for a travel motor, which is characterized by comprising 59-65 wt% of Cu, 2.2-3.8 wt% of Mn, 1.7-3.7 wt% of Al, 0.2-0.6 wt% of Ni, at most 0.6 wt% of Fe, 0.07-0.27 wt% of Cr, at most 0.18 wt% of Pb, 0.5-1.3 wt% of Si and the balance of Zn. Compared with the existing spherical hinge material for a travel motor, the invention adds Ni, Cr and Si, and adjusts the contents of other components. By smelting the spherical hinge in such a chemical composition, the strength and hardness of the material are enhanced, and the abrasion resistance is enhanced due to lubrication action, thereby prolonging the service life of the part.
Description
Technical field
The present invention relates to running motor and reach lubricated novel material with the ball pivot high strength of (claiming spherical bushing again), high rigidity, high abrasion.
Background technology
Various types of excavator machineries are widely used in civilian, the mechanized construction of communications and transportation, hydro project, mine excavation and modern military engineering.For crawler hypraulic excavator, its travel mechanism drives by two oil motors, no support leg device.In the axial plunger running motor, Self-centering Action when ball pivot helps cylinder body and transmission shaft running, it and backhaul dish and transmission shaft between do high-speed slide, and its sphere is played a part " oscillating bearing " by the moving constantly swing of backhaul dribbling in the to-and-fro movement of motor plunger.Therefore in motor operations, it also is an important friction pair, not only transmit moment of torsion, and sphere also will bear bigger pressure and friction.
The ball pivot that uses on the hydraulic moving motor of the big tonnage of existing market adopts copper alloy C6783 material mostly, and the ball pivot made of material in use exists intensity, hardness not high enough like this, easy deformation, and produce abrasive wear and adhesive wear.In order to improve the work-ing life of motor, must improve intensity, hardness and the wear resisting property of ball pivot.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of novel material and makes ball pivot, reaches the requirement that improves intensity, hardness and raising wear resisting property.
To achieve these goals, the invention provides the material of a kind of running motor with ball pivot, it is characterized in that, form by the Zn of Cu 59～65wt%, Mn 2.2～3.8wt%, Al 1.7～3.7wt%, Ni 0.2～0.6wt%, Fe≤0.6wt%, Cr 0.07～0.27wt%, Pb≤0.18wt%, Si 0.5～1.3wt% and surplus.
Compare with the material of ball pivot with existing running motor, the present invention has added Ni, Cr and Si, other components contents have been adjusted simultaneously, ball pivot with such chemical ingredients melting making, the intensity and the hardness of material on performance, have been improved, owing to lubrication has improved wear resisting property, thereby prolonged work-ing life of part.
Description of drawings
Fig. 1 is the structure figure (400X) of existing running motor with the material (C6783) of ball pivot;
Fig. 2 is the structure figure (400X) of running motor of the present invention with the material (LG-8) of ball pivot.
Embodiment
Specify the present invention below in conjunction with embodiment.
Embodiment
1, the existing running motor material (C6783) and the composition contrast table of running motor of the present invention of ball pivot with the material (LG-8) of ball pivot:
2, the running motor of the present invention preparation method of ball pivot:
(1) melting: will go up that each raw material is mixed in proportion in the table, and drop into smelting furnace, samming is 20 minutes after 1020 ℃ of fusings;
(2) vertical D.C.casting: melted liquid copper alloy is entered vertical D.C.casting production line cast, and through the extruding down of 4bar pressure, the external diameter of cooled and solidified formation simultaneously is the extrusion ingot of 110mm;
(3) heating and tubing hot extrusion: with external diameter is to enter extrusion machine after the extrusion ingot of 110mm is heated to 680 ℃, and extruding is 5 minutes under 6.5bar pressure, and the formation external diameter is 65mm, and internal diameter is the tubing of 32mm;
(4) turnning and milling processing and packing: carry out turnning and milling by the specification of tubing and be worked into desired size, pack at last.
Existing running motor is made the running motor ball pivot with material (C6783) the employing same procedure of ball pivot.
3, existing running motor is made the performance comparison of product with the material of ball pivot with the material (C6783) of ball pivot and running motor of the present invention:
| Material mark | Tensile strength/MPa | Elongation/% | Hardness HB |
| LG-8 | 655-665 | 13.5 | 179-187 |
| C6783 | ≥510 | ≥15 | 159-165 |
As above show data, the tensile strength and the hardness of the ball pivot of new formula materials all improve a lot, and have reached the purpose that the present invention will reach.
4, as shown in Figure 1, be the structure figure (400X) of existing running motor with the material (C6783) of ball pivot, as shown in Figure 2, be the structure figure (400X) of running motor of the present invention with the material (LG-8) of ball pivot, contrast by metallographic structure, the LG-8 material makes material internal form the weave construction of β phase+α phase+strengthening phase through adjusting proportioning components, adding new element, thereby reaches the purpose that improves intensity and hardness.
5, performance comparison test:
Press figure paper conversion ball pivot part with C6783 and LG-8 material respectively, be assembled on the hydraulic moving motor and compare test: after carrying out performance test in 5 hours on the integrated hydraulic testing table, refill earlier and carry out strenuous test in 200 hours on same the excavator complete machine by following condition, after strenuous test in 200 hours, spline and spherical deformation are serious by the ball pivot of C6783 materials processing; After strenuous test in 200 hours, part does not have metamorphism by the ball pivot of LG-8 materials processing.Illustrate that the ball pivot that this material is made has better intensity, hardness and wear resistance, has improved the work-ing life of oil motor.
Claims (1)
1. a running motor is with the material of ball pivot, it is characterized in that, form by the Zn of Cu 59～65wt%, Mn 2.2～3.8wt%, Al 1.7～3.7wt%, Ni 0.2～0.6wt%, Fe≤0.6wt%, Cr 0.07～0.27wt%, Pb≤0.18wt%, Si 0.5～1.3wt% and surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110208515 CN102251142A (en) | 2011-07-25 | 2011-07-25 | Spherical hinge material for travel motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110208515 CN102251142A (en) | 2011-07-25 | 2011-07-25 | Spherical hinge material for travel motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102251142A true CN102251142A (en) | 2011-11-23 |
Family
ID=44978707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110208515 Pending CN102251142A (en) | 2011-07-25 | 2011-07-25 | Spherical hinge material for travel motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102251142A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3269835A1 (en) * | 2014-05-16 | 2018-01-17 | Otto Fuchs - Kommanditgesellschaft - | Special brass alloy and alloy product |
| US10570484B2 (en) | 2016-05-20 | 2020-02-25 | Otto Fuchs Kommanditgesellschaft | High tensile brass alloy and high tensile brass alloy product |
| US11359263B2 (en) | 2016-05-20 | 2022-06-14 | Otto Fuchs Kommanditgesellschaft | Lead-free high tensile brass alloy and high tensile brass alloy product |
| US11427890B2 (en) | 2014-02-04 | 2022-08-30 | Otto Fuchs Kommanditgesellschaft | Lubricant-compatible copper alloy |
| CN115103921A (en) * | 2020-03-30 | 2022-09-23 | 奥托福克斯两合公司 | Lead-free copper-zinc alloy |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1517446A (en) * | 2003-01-22 | 2004-08-04 | ͬ�Ϳ�ҵ��ʽ���� | Copper-based alloy and its manufacturing method |
| CN101287848A (en) * | 2005-04-04 | 2008-10-15 | 迪尔金属合作两合公司 | Use of a copper zinc alloy |
| CN101705388A (en) * | 2009-11-03 | 2010-05-12 | 苏州撼力铜合金材料有限公司 | High-strength wear-resistant complex brass for automotive synchronizing ring |
-
2011
- 2011-07-25 CN CN 201110208515 patent/CN102251142A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1517446A (en) * | 2003-01-22 | 2004-08-04 | ͬ�Ϳ�ҵ��ʽ���� | Copper-based alloy and its manufacturing method |
| CN101287848A (en) * | 2005-04-04 | 2008-10-15 | 迪尔金属合作两合公司 | Use of a copper zinc alloy |
| CN101705388A (en) * | 2009-11-03 | 2010-05-12 | 苏州撼力铜合金材料有限公司 | High-strength wear-resistant complex brass for automotive synchronizing ring |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11427890B2 (en) | 2014-02-04 | 2022-08-30 | Otto Fuchs Kommanditgesellschaft | Lubricant-compatible copper alloy |
| EP3269835A1 (en) * | 2014-05-16 | 2018-01-17 | Otto Fuchs - Kommanditgesellschaft - | Special brass alloy and alloy product |
| US10316398B2 (en) | 2014-05-16 | 2019-06-11 | Otto Fuchs Kommanditgesellschaft | High-tensile brass alloy and alloy product |
| US10570484B2 (en) | 2016-05-20 | 2020-02-25 | Otto Fuchs Kommanditgesellschaft | High tensile brass alloy and high tensile brass alloy product |
| US11359263B2 (en) | 2016-05-20 | 2022-06-14 | Otto Fuchs Kommanditgesellschaft | Lead-free high tensile brass alloy and high tensile brass alloy product |
| CN115103921A (en) * | 2020-03-30 | 2022-09-23 | 奥托福克斯两合公司 | Lead-free copper-zinc alloy |
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Application publication date: 20111123 |