CN204163949U - Hydraulic transmission gear box oil-feeding control pump structure - Google Patents
Hydraulic transmission gear box oil-feeding control pump structure Download PDFInfo
- Publication number
- CN204163949U CN204163949U CN201420552417.4U CN201420552417U CN204163949U CN 204163949 U CN204163949 U CN 204163949U CN 201420552417 U CN201420552417 U CN 201420552417U CN 204163949 U CN204163949 U CN 204163949U
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- pump
- oil
- control
- pressure
- pressure oil
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Abstract
The utility model discloses a kind of hydraulic transmission gear box oil-feeding control pump structure, oil feed pump and control pump composition duplex pump, be assemblied in pump case inner and by same main shaft drives, oil feed pump is crescent gear pump, supercharging mineralization pressure oil after oil is sucked oil from fuel tank by oil feed pump, pressure oil is divided into two oil circuits through radiator cooling, and a road pressure oil enters hydrodynamic unit by main control valve and participates in transmitted power, and pressure oil returns fuel tank afterwards; Another road pressure oil enters control pump, and control pump is Gerotor pump, and the pressure oil through control pump secondary booster enters main control valve as control oil, realizes the opening and closing of main control valve; Oil feed pump and control pump are equipped with pressure release loop.Transmission power effect can not only be realized, can also by cycloid control pump hydraulic control oil, realize the control to locomotive operation, compact structure, size is little, lightweight, smooth running, and transmission efficiency is high, is applicable to locomotive railway hydraulic transmission gear box.
Description
Technical field
The utility model relates to railway hydraulic transmission gear box technical field.
Background technique
Current railway hydraulic transmission gear box oil feed pump is mainly for transmission case provides transmitted power.The medium of oil feed pump transmission is pressure oil, and in order to meet pressure oil large discharge, what oil feed pump adopted is centrifugal blade pump.Its boundary dimension is very large, and hydraulic transmission gear box physical dimension is increased.
In existing hydraulic transmission gear box, main control valve is controlled by pressurized air, easily leak because actuating cylinder is positioned at box house, pressurized air enters box house, cause inside and outside differential pressure excessive, easily cause oil gas to leak from casing, the moisture simultaneously in pressurized air also can pollute case internal pressure oil.
Model utility content
The technical problem that the utility model solves is, provides a kind of and both can provide the pressure oil of transmission power for hydrodynamic unit, can provide the control controlling oil and realize locomotive operation again for control system simultaneously.
The technical solution adopted in the utility model is hydraulic transmission gear box oil-feeding control pump structure, oil feed pump and control pump are assemblied in pump case inside, and by same main shaft drives, oil feed pump is crescent gear pump, supercharging mineralization pressure oil after oil is sucked oil from fuel tank by oil feed pump, pressure oil is divided into two oil circuits through radiator cooling, and a road pressure oil enters hydrodynamic unit by main control valve and participates in transmitted power, and pressure oil returns fuel tank afterwards; Another road pressure oil enters control pump, and control pump is Gerotor pump, and the pressure oil through control pump secondary booster enters main control valve as control oil, realizes the opening and closing of main control valve; Oil feed pump and control pump are equipped with pressure release loop.
Control pump oil outlet also connects an oil circuit, and oil circuit is provided with one-way valve, and the pressure oil through one-way valve enters inertia pump, is lubrication system fuel feeding, gets back to fuel tank afterwards after inertia pump, and inertia pump is also from fuel tank oil suction simultaneously.
Pump case comprises duplex pump pump cover, the pump housing and pump cover, and the pump housing is connected to valve plate, and valve plate is fixed on transmission case; Body end is fuel tank inlet port, oil feed pump comprises driving gear and driven gear, driving gear, between driven gear and the pump housing, there are oil sucting cavity, pumping cavity, between the pump housing and valve plate, are provided with heat sink inlet, pressure release oil oil sump tank mouth, Gerotor pump filler opening and Gerotor pump oil outlet.
The beneficial effects of the utility model are, oil feed pump and control pump composition duplex pump, transmission power effect can not only be realized, by cycloid control pump hydraulic control oil, the control to locomotive operation can also be realized, compact structure, size is little, lightweight, smooth running, transmission efficiency is high, there will not be the contaminated situation of pressure oil.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is pump housing side view.
Fig. 3 is pump housing oil channel structures schematic diagram.
Fig. 4 is fundamental diagram.
Be labeled as in figure: 1-duplex pump gear, 2-main shaft, 3-duplex pump pump cover, the 4-pump housing, 5-driving gear, 6-driven gear, 7-bearing, 8-Gerotor pump passive tooth wheel rim, 9-Gerotor pump driver pinion, 10-pump cover, 11-valve plate.A-fuel tank inlet port, B-pressure release oil sump tank mouth, C-heat sink inlet, D-Gerotor pump filler opening, E-Gerotor pump oil outlet, F-oil sucting cavity, G-pumping cavity.
Embodiment
The utility model adopts duplex pump structure, hydraulic transmission gear box oil-feeding control pump of the present utility model is a duplex pump be made up of oil feed pump and control pump, oil feed pump function is for hydrodynamic unit provides the pressure oil of transmission power, is crescent gear pump, comprises driving gear 5 and driven gear 6; Control pump major function controls oil for control system provides, and by the switching of the open and close pilot pressure oil of control valve, control pump structure is Gerotor pump.The utility model can not only realize transmission power effect, also by cycloid control pump hydraulic control oil, can realize the control to locomotive operation simultaneously.
As shown in Figure 1, Figure 2, Figure 3 shows, hydraulic transmission gear box oil-feeding control pump structure is compact, size is little, lightweight, smooth running, transmission efficiency is high, the valve plate 11 mainly comprising duplex pump gear 1, main shaft 2, duplex pump pump cover 3, the pump housing 4, oil feed pump driving gear 5, oil feed pump driven gear 6, the bearing 7 being assemblied in the pump housing 4 and pump cover 10 and Gerotor pump passive tooth wheel rim 8, Gerotor pump driver pinion 9, pump cover 10 and be assemblied on transmission case.
Fuel feeding principle of the present utility model as shown in Figure 4, oil feed pump and the same main shaft drives of control pump, oil feed pump is crescent gear pump, supercharging mineralization pressure oil after oil is sucked oil from fuel tank by oil feed pump, pressure oil is admitted to radiation system and cools, cooled pressure oil enters different oil circuits respectively, and a road pressure oil enters hydrodynamic unit by main control valve and participates in transmitted power, and pressure oil returns fuel tank afterwards; Another road pressure oil controls oil for control pump provides, and control pump is Gerotor pump, and the pressure oil through control pump secondary booster enters main control valve as control oil, realizes the opening and closing of main control valve; Oil feed pump is provided with pressure release loop; Pressure oil through control pump outlet controls oil through smart Lv Hou mono-tunnel for main control valve provides, and another road enters inertia pump intake after one-way valve, then directly enters lubrication system.Wherein the next oily of inertia pump has two oil circuits, one be the above-mentioned oil from control pump outlet through one-way valve, another is directly from fuel tank oil suction.
During work, as shown in Figure 1, power source drives duplex pump gear 1 to rotate, main shaft 2 is driven to operate, oil feed pump driving gear 5 main shaft is equipped with, driving gear 5 works and driven gear 6 moves in the same way, mineralization pressure difference P, the pump housing 4 starts from fuel tank oil suction by fuel tank inlet port A, the oil sucked is after the strainer of A in pump housing inlet port filters, enter oil feed pump driving gear 5, the oil sucting cavity F that swing link on driven gear 6 and the pump housing 4 is formed, the oil of oil sucting cavity is pressed into pumping cavity G by two continuous gear motions of gear, after certain pressure suppressed by the pressure oil of pumping cavity, flow out from the heat sink inlet C that the pump housing communicates with valve plate and transmission case body, radiator cooling is entered through casing, a cooled pressure oil part enters main control valve, prepare for hydrodynamic unit is oil-filled.When oil feed pump oil pressure is too high, fuel tank is got back in the pressure release oil sump tank mouth B pressure release be connected with casing by the pump housing and valve body; Through the cooled pressure oil of radiator, a part enters into main control valve, prepares for hydrodynamic unit is oil-filled, and another part pressure oil is by valve plate 11, Gerotor pump filler opening D, get back in pump cover 10, pressure oil in pump cover 10, under Gerotor pump operates formation pressure reduction in the same way, enters into Gerotor pump oil sucting cavity, after the pressure oil secondary booster of oil sucting cavity, enter into main control valve by the pump housing 4 and the Gerotor pump oil outlet E of valve plate 11, control oil for main control valve provides, main control valve is solenoid valve.Simultaneously after control pump oil pressure reaches certain value, pressure oil pressure release enters into inertia pump, as system oil.
Claims (3)
1. hydraulic transmission gear box oil-feeding control pump structure, it is characterized in that: oil feed pump and control pump are assemblied in pump case inside, and by same main shaft drives, oil feed pump is crescent gear pump, supercharging mineralization pressure oil after oil is sucked oil from fuel tank by oil feed pump, pressure oil is divided into two oil circuits through radiator cooling, and a road pressure oil enters hydrodynamic unit by main control valve and participates in transmitted power, and pressure oil returns fuel tank afterwards; Another road pressure oil enters control pump, and control pump is Gerotor pump, and the pressure oil through control pump secondary booster enters main control valve as control oil, realizes the opening and closing of main control valve; Oil feed pump and control pump are equipped with pressure release loop.
2. hydraulic transmission gear box oil-feeding control pump structure as claimed in claim 1, it is characterized in that: described control pump oil outlet also connects an oil circuit, oil circuit is provided with one-way valve, pressure oil through one-way valve enters inertia pump, it is lubrication system fuel feeding after inertia pump, get back to fuel tank afterwards, inertia pump is also from fuel tank oil suction simultaneously.
3. hydraulic transmission gear box oil-feeding control pump structure as claimed in claim 1, is characterized in that: described pump case comprises duplex pump pump cover, the pump housing and pump cover, and the pump housing is connected to valve plate, and valve plate is fixed on transmission case; Body end is fuel tank inlet port, oil feed pump comprises driving gear and driven gear, driving gear, between driven gear and the pump housing, there are oil sucting cavity, pumping cavity, between the pump housing and valve plate, are provided with heat sink inlet, pressure release oil oil sump tank mouth, Gerotor pump filler opening and Gerotor pump oil outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552417.4U CN204163949U (en) | 2014-09-24 | 2014-09-24 | Hydraulic transmission gear box oil-feeding control pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552417.4U CN204163949U (en) | 2014-09-24 | 2014-09-24 | Hydraulic transmission gear box oil-feeding control pump structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204163949U true CN204163949U (en) | 2015-02-18 |
Family
ID=52537645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420552417.4U Expired - Fee Related CN204163949U (en) | 2014-09-24 | 2014-09-24 | Hydraulic transmission gear box oil-feeding control pump structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204163949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295464A (en) * | 2014-09-24 | 2015-01-21 | 中国北车集团大连机车研究所有限公司 | Oil supply and control pump structure of hydrodynamic drive box |
-
2014
- 2014-09-24 CN CN201420552417.4U patent/CN204163949U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295464A (en) * | 2014-09-24 | 2015-01-21 | 中国北车集团大连机车研究所有限公司 | Oil supply and control pump structure of hydrodynamic drive box |
| CN104295464B (en) * | 2014-09-24 | 2016-08-24 | 中国北车集团大连机车研究所有限公司 | Hydraulic transmission gear box oil-feeding control pump configuration |
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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: 20150218 Termination date: 20170924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |