CN101363479B - Floating connection device between hydraulic power unit gear box and oil pump for engineering ship - Google Patents
Floating connection device between hydraulic power unit gear box and oil pump for engineering ship Download PDFInfo
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- CN101363479B CN101363479B CN2008102006685A CN200810200668A CN101363479B CN 101363479 B CN101363479 B CN 101363479B CN 2008102006685 A CN2008102006685 A CN 2008102006685A CN 200810200668 A CN200810200668 A CN 200810200668A CN 101363479 B CN101363479 B CN 101363479B
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Abstract
The invention relates to a floating connection device of a gear case and an oil pump of a hydraulic pump station in engineering vessels; the floating connection device comprises an output shaft head of the gear case with an external spline, a shaft head of the oil pump with an external spline and a floating spline housing with a first spline housing and a second spline housing; the first spline housing is connected with the second spline housing, the first spline housing is formed with an internal spline and the second spline housing is also formed with an internal spline; wherein, the first spline housing is connected with the spline at the output shaft head of the gear case, and the second spline housing is connected with the spline at the shaft head of the oil pump, so that the output shaft head of the gear case can be connected with the shaft head of the oil pump in a floating way.
Description
Technical field
The present invention relates to the transmission device in a kind of engineering ship hydraulic system, relate in particular to the coupling arrangement of hydraulic power unit gear-box and oil pump in a kind of hydraulic system of engineering ship.
Background technique
Hydraulic power unit is one of key equipment of engineering ships such as cutter suction dredger, floating pile driver.With the cutter suction dredger power transmission system is example, is made up of the not only separate but also closely-related sub-transmission system of following quadruplet as the one of which: mud pump transmission agent, hydraulic power unit transmission system, mud pump transmission agent in water and reamer transmission agent in the cabin.The hydraulic power unit transmission system is used for the power of diesel engine is passed to the high-pressure and hydraulic oil pump, for hydraulic pressure installation such as full boat motor provide power.
At present, the hydraulic power unit gear-box all adopts direct rigid joint with connecting of high pressure oil pump, and is as shown in Figure 4, and the gearbox output shaft head 10 with internal spline directly connects the input shaft 20 of the high pressure oil pump with external splines.
Along with the continuous increase of ship type, high pressure oil pump adopts duplex pump in a large number, even treble pump, the oil pump group always reach 1.3m～1.6m.The input spindle nose of hydraulic power unit gearbox output shaft and high pressure oil pump adopts direct splined, and the two axial lines accuracy of alignment is had relatively high expectations.Simultaneously, engineering ship hydraulic power unit work characteristics is continuous variable working condition, and engineering ship working boat body deformability must cause hydraulic power unit gearbox output shaft and high pressure oil pump group axle dislocation to occur.These factors cause the spline working environment under the direct splined mode very abominable, and high load friction play down causes that the flank of tooth produces accumulation high temperature, produces tooth surface abrasion thereby reduce flank of tooth intensity, finally causes spline tooth to damage.In actual the use serious accidents such as hydraulic power unit gear-box and the damage of hydraulic-pressure pump spline tooth taking place repeatedly once, causes the full ship can't normal construction.
In addition, the hardness of high pressure oil pump input shaft external splines is high, precision is high, and the hardness of the part that inevitable requirement connects with it, precision are all very high, and the user requires high pressure oil pump (particularly expensive oil pump) input shaft not allow to damage simultaneously again.
Therefore, be necessary hydraulic power unit gear-box and connecting of oil pump are made improvement, with generation and the satisfied requirement that can not damage the oil pump input shaft of avoiding accident.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic power unit gear-box of engineering ship and the floating connection device of oil pump; Its allow hydraulic power unit gear-box output shaft and oil pump spindle nose connect exist unsteady, thereby the adverse effect that can avoid the variation of the various operating modes of dredger that gear-box and connecting of oil pump are brought.
In order to realize said purpose, the hydraulic power unit gear-box of engineering ship of the present invention and the floating connection device of oil pump are characterized in comprising: the gearbox output shaft head with external splines; Oil pump spindle nose with external splines; And the unsteady spline housing with first key cover and second key cover, first key cover connects the second key cover, and the first key cover is formed with internal spline, and second key cover also is formed with internal spline; Wherein, first key cover is connected with gearbox output shaft headdress flower key, and second key overlaps and is connected with oil pump shaft headdress flower key, thereby makes the connection of floating of gearbox output shaft head and oil pump spindle nose.
The hydraulic power unit gear-box of described engineering ship and the floating connection device of oil pump, its further characteristics are also to comprise baffle plate, and this baffle plate is arranged on the joint of first key cover and second key cover, are used to limit the axial float scope of unsteady spline housing.
The hydraulic power unit gear-box of described engineering ship and the floating connection device of oil pump, the external splines that its further characteristics are gearbox output shaft heads is the involute profile external splines.
The hydraulic power unit gear-box of described engineering ship and the floating connection device of oil pump, its further characteristics are that the safety coefficient of external splines of safety coefficient and oil pump spindle nose of external splines of hydraulic power unit gearbox output shaft head is all greater than the safety coefficient of floating connection device internal spline.
The hydraulic power unit gear-box of described engineering ship and the floating connection device of oil pump, its further characteristics are that this project boats and ships are cutter suction dredger or floating pile driver, and its oil pressure pump is duplex pump or treble pump, and the oil pump length overall is between 1.3m～1.6m.
The invention has the beneficial effects as follows: unsteady spline housing has two internal spline structures of first key cover and second key cover; Allow the output shaft of the gear-box of hydraulic power unit to float with the existence that connects of the spindle nose of oil pump; Thereby the adverse effect that the variation of having avoided the various operating modes of dredger brought gear-box and connecting of oil pump; The original internal spline of gearbox output shaft spindle nose is modified to external splines, and the processing technology of external splines is simple, and machining accuracy is easy to guarantee; The spline housing size of floating is less, and spline processing technology, heat treatment process are simple, and spline machining accuracy, hardness etc. are easy to guarantee; Axis centering requirement to gearbox output shaft head and oil pump spindle nose is low, the device stable working, and noise is low, and the life-span is long; Unsteady spline housing has two internal spline structures of first key cover and second key cover; For connecting various dissimilar oil pumps; Only need unsteady spline housing of change and oil pump spindle nose coupling part spline to get final product; And the unsteady spline housing internal spline of hydraulic power unit gearbox output shaft head external splines and connection with it need not change, convenient like this realization generalization of parts and standardization; Spline housing adopts two internal spline structures owing to float, and can realize that the hydraulic power unit gearbox output shaft connects with the unsteady of oil pump output shaft, effectively compensates misalignment of axe; In addition, can also utilize baffle plate that the axial float scope of spline housing is carried out certain limitation simultaneously; The hydraulic power unit gearbox output shaft adopts to float with the oil pump input shaft and connects, and has both effectively compensated the deviation of two axial lines, has made things convenient for the lubricated and cooling of spline again, has greatly improved the working environment of spline, helps prolonging the working life of spline; In addition; Adopt the spline housing that floats to connect; Can the safety coefficient of the external splines of the safety coefficient of the external splines of hydraulic power unit gearbox output shaft head and oil pump spindle nose be arranged to the safety coefficient greater than the spline housing internal spline that floats during design, spline housing and oil pump shaft headdress flower key connecting are chosen suitable parameters, so both can guarantee that gearbox output shaft headdress flower key can not damage; Can satisfy the requirement that the user does not damage oil pump shaft headdress flower key again; Use for a long time,, change also very convenient even if damaged condition appears in the spline housing that floats.
Aforementioned purpose of the present invention, technological scheme and beneficial effect will combine following description of drawings and embodiment to carry out concrete description.
Description of drawings
Fig. 1 has shown the structural type of one embodiment of the invention.
Fig. 2 is the sectional view along the A-A line among Fig. 1.
Fig. 3 is the sectional view along the B-B line among Fig. 1.
Fig. 4 has shown the hydraulic power unit gear-box of known cutter suction dredger and the connecting structure of oil pump.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, one embodiment of the invention comprise gearbox output shaft head 1 simultaneously, baffle plate 2, and spline housing 3 and oil pump spindle nose 4 float.
Gearbox output shaft head 1 has external splines, and oil pump spindle nose 4 also has external splines.The spline housing 3 that floats comprises that first key cover, 31 and second key cover, 32, the first keys cover 31 is connected with second key cover 32.First key cover, 31 and second key cover 32 is formed with internal spline respectively.The spline parameter of the external splines of the spline parameter corresponding teeth roller box output shaft head 1 of first key cover 31, the spline parameter of the external splines of the corresponding oil pump spindle nose 4 of spline parameter of second key cover 32.First key cover 31 of spline housing 3 of floating is connected with gearbox output shaft head 1 spline; Second key cover 32 is connected with oil pump spindle nose 4 splines; Spline connects and is non-rigid everywhere; Therefore allow predetermined misalignment of axe between gearbox output shaft head 1 shown in Figure 1 and the oil pump spindle nose 4; When the variation that also promptly takes place in the operating mode of dredger caused the distortion of hull, float spline housing 3 and gearbox output shaft head 1, oil pump spindle nose 4 unsteady connects can compensate oil pump spindle nose 4 that the deformation of hull causes and the misalignment of axe between the gearbox output shaft head 1 effectively.
In unsteady spline housing 3, also be provided with baffle plate 2, baffle plate 2 is used for the axial float scope of spline housing 3 is limited.
Compare with existing gearbox output shaft head, the external splines of the gearbox output shaft head 1 of previous embodiment for example adopts the involute profile external splines, can adopt conventional machining tool processing, and is much easier compared with on the gearbox output shaft head, forming internal spline.The size of unsteady spline housing 3 is less relatively, conveniently heat-treats and spline processing, and processing technology is simple, and machining accuracy is easy to guarantee.
Claims (3)
1. the hydraulic power unit gear-box of an engineering ship and the floating connection device of oil pump is characterized in that comprising:
Gearbox output shaft head with external splines;
Oil pump spindle nose with external splines; And
Have the unsteady spline housing of first key cover and second key cover, first key cover connects the second key cover, and the first key cover is formed with internal spline, and second key cover also is formed with internal spline;
Wherein, First key cover is connected with gearbox output shaft headdress flower key, and second key overlaps and is connected with oil pump shaft headdress flower key, thereby makes the connection of floating of gearbox output shaft head and oil pump spindle nose; This floating connection device also comprises baffle plate; This baffle plate is arranged on the joint of first key cover and second key cover, is used to limit the axial float scope of unsteady spline housing, and the external splines of gearbox output shaft head is the involute profile external splines.
2. the hydraulic power unit gear-box of engineering ship as claimed in claim 1 and the floating connection device of oil pump, the safety coefficient of external splines of safety coefficient and oil pump spindle nose of external splines that it is characterized in that hydraulic power unit gearbox output shaft head is all greater than the safety coefficient of the internal spline of the spline housing that floats.
3. the hydraulic power unit gear-box of engineering ship as claimed in claim 1 and the floating connection device of oil pump is characterized in that this project boats and ships are cutter suction dredger or floating pile driver, and its oil pump is duplex pump or treble pump, and the oil pump length overall is between 1.3m～1.6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102006685A CN101363479B (en) | 2008-09-27 | 2008-09-27 | Floating connection device between hydraulic power unit gear box and oil pump for engineering ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102006685A CN101363479B (en) | 2008-09-27 | 2008-09-27 | Floating connection device between hydraulic power unit gear box and oil pump for engineering ship |
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| Publication Number | Publication Date |
|---|---|
| CN101363479A CN101363479A (en) | 2009-02-11 |
| CN101363479B true CN101363479B (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102006685A Active CN101363479B (en) | 2008-09-27 | 2008-09-27 | Floating connection device between hydraulic power unit gear box and oil pump for engineering ship |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032342B (en) * | 2010-11-24 | 2014-07-23 | 贵州凯星液力传动机械有限公司 | Novel gear self-locking type transmission output device |
| CN105620738A (en) * | 2016-01-05 | 2016-06-01 | 中国航空动力机械研究所 | Reducer connecting structure for helicopter and helicopter with same |
| CN110081084A (en) * | 2018-10-30 | 2019-08-02 | 中国船舶重工集团海装风电股份有限公司 | Flexible connecting structure is used in a kind of transmission of wind-driven generator |
| CN110285205A (en) * | 2019-07-04 | 2019-09-27 | 宁德时代电动科技有限公司 | Floating gear structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4277956A (en) * | 1978-09-29 | 1981-07-14 | Lucas Industries Limited | Spline drive arrangement |
| CN2826061Y (en) * | 2005-08-20 | 2006-10-11 | 西安筑路机械有限公司 | Combined coupling |
-
2008
- 2008-09-27 CN CN2008102006685A patent/CN101363479B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4277956A (en) * | 1978-09-29 | 1981-07-14 | Lucas Industries Limited | Spline drive arrangement |
| CN2826061Y (en) * | 2005-08-20 | 2006-10-11 | 西安筑路机械有限公司 | Combined coupling |
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| CN101363479A (en) | 2009-02-11 |
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Effective date of registration: 20151224 Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Building 1 room 629 Patentee after: Shanghai shine Heavy Industry Co., Ltd. Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee before: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) |