CN201057256Y - Novel hydraulically driving device of sliding loader - Google Patents
Novel hydraulically driving device of sliding loader Download PDFInfo
- Publication number
- CN201057256Y CN201057256Y CNU2007200246986U CN200720024698U CN201057256Y CN 201057256 Y CN201057256 Y CN 201057256Y CN U2007200246986 U CNU2007200246986 U CN U2007200246986U CN 200720024698 U CN200720024698 U CN 200720024698U CN 201057256 Y CN201057256 Y CN 201057256Y
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Abstract
The utility model relates to a novel hydraulic transmission device of hydraulic sliding loader and shovel loader for construction machinery, which comprises a working oil circuit, a running oil circuit, an oil radiator (17), and a gasoline tank (6), etc. wherein, the working oil circuit comprises a gear pump (16), rough filtration (5), a manual multi-way directional valve (11), two bucket cylinders (12), two arm support cylinders (13), and a relief valve (14), etc; the running oil circuit comprises a variable series plunger pump (2), two low-speed big torque motors (1), two flushing valves (10), a slippage pump (4), and a rotating oil filter (7), etc. The gear pump (16) of the working oil circuit is communicated with the gasoline tank (6) and the manual multi-way directional valve (11) is communicated with the oil radiator (17); the variable series plunger pump (2) of the running oil circuit is communicated with the gasoline tank (6); the flushing valves (10) are communicated with the oil radiator (17); the oil radiator (17) is communicated with the gasoline tank (6). The utility model is characterized by simple structure, reliable operation, convenient installation and maintenance, low machining accuracy and low manufacturing cost, etc.
Description
One, technical field:
The utility model relates to the novel hydraulic transmission device of hydraulic pressure sliding loader, shovel loader in a kind of engineering machinery.
Two, background technique:
Present sliding loader, shovel loader are to adopt two variable displacement pumps to be connected with pump box respectively with duplex gear pump, the power of motor is transported to duplex gear pump and two variable displacement pumps by pump box, and duplex gear pump and variable displacement pump provide high-voltage oil liquid for hydrostatic transmission.Be provided with control oil channel in the hydrostatic transmission, duplex gear pump is transported to high hydraulic oil in this oil circuit, handles two proportional pilot valve, and hydraulic oil is through safety valve, proportional pilot valve, and one the tunnel enters the working oil path of multiple directional control valve, the Control work oil circuit; Another road enters two variable displacement pumps, the oil circuit that travels that the control complete machine travels.Each connects with a limit uni-drive gear box oil circuit that travels by two high-speed hydraulic motors, drives driving wheel and implements to travel; Each connects with the dish spring of a limit uni-drive gear box, interior outside friction disc two unidirectional plunger cases again, and the opposite side uni-drive gear box is implemented braking.The shortcoming of this device is: 1, two variable displacement pumps are connected with pump box respectively with duplex gear pump, pump box complex structure, installation precision height, manufacture cost height; 2, servo apply hydraulic pressure is controlled travel oil circuit and working oil path, and pipeline connects complicated, and oil circuit stops up easily, and the servovalve dependence on import has improved manufacture cost; 3, high-speed motor is behind limit uni-drive gear box multi-stage gear transmission reduction of speed, and driving wheel is walked, limit uni-drive gear box complex structure, and the installation and maintenance difficulty, the machining accuracy height has increased manufacture cost.
Three, summary of the invention:
The purpose of this utility model is that it is simple in structure, and is reliable for sliding loader, shovel loader provide a kind of new type hydraulic transmission device, and installation, maintenance is convenient, and machining accuracy is low, low cost of manufacture.
For achieving the above object, the technological scheme that the utility model is taked is: include working oil path, composition such as the oil circuit that travels, oil radiator, fuel tank.The gear pump of working oil path is communicated with fuel tank, and the manual multi-path reversing valve of working oil path is communicated with oil radiator, and the variable series connection plunger pump of the oil circuit that travels is communicated with fuel tank, and the flushing valve of the oil circuit that travels is communicated with oil radiator, and oil radiator is communicated with fuel tank.Working oil path includes gear pump, coarse filtration, manual multi-path reversing valve, two bucket cylinders, two arm support oil cylinder, relief valve etc.Gear pump connects with the pto of motor, the filler opening of gear pump is communicated with fuel tank by coarse filtration, the oil outlet of gear pump is communicated with manual multi-path reversing valve, manual multi-path reversing valve is communicated with two bucket cylinders, two arm support oil cylinder, between manual multi-path reversing valve and bucket cylinder, arm support oil cylinder relief valve is housed.Gear pump provides power by motor, for hydraulic oil, handles control by manual multi-path reversing valve to bucket cylinder, arm support oil cylinder.The oil circuit that travels includes variable series connection plunger pump, two low-speed big torque motors, two flushing valves, slippage pump, rotation oil purifier etc.The filler opening of rotation oil purifier is communicated with fuel tank, the oil outlet of rotation oil purifier is by connect with variable plunger pump connection of slippage pump, variable series connection plunger pump is communicated with two low-speed big torque motors and flushing valve is housed, variable series connection plunger pump connects with the pto of motor, and two low-speed big torque motors respectively connect with a driving wheel by a limit uni-drive gear box or chain-driven unit.Provide power by motor to variable series connection plunger pump, by variable series connection plunger pump control low-speed big torque motor, low-speed big torque motor drives driving wheel by limit uni-drive gear box or chain-driven unit, realizes travelling of complete machine.Slippage pump replenishes fluid and cleaning solution hydraulic circuit to the oil circuit that travels, flushing valve is to the low-speed big torque motor flushing and take away heat, by oil radiator hydraulic oil is dispelled the heat and lowers the temperature at working oil path, the heat that produces when travelling the oil circuit operation, to guarantee the normal operation of whole hydraulic circuit.
Because the utility model has adopted variable series connection plunger pump, and improves former oil circuit, make oil circuit and designs simplification, compare with former hydraulic control device, the utlity model has simple in structure, reliable, installation, maintenance is convenient, and machining accuracy is low, characteristics such as low cost of manufacture.
Four, description of drawings
Accompanying drawing is a hydraulic circuit principle schematic of the present utility model.
Five, embodiment
Accompanying drawing is an embodiment of the present utility model, includes working oil path, composition such as the oil circuit that travels, oil radiator 17, fuel tank 6.
Working oil path includes gear pump 16, coarse filtration 5, manual multi-path reversing valve 11, two bucket cylinders 12, two arm support oil cylinder 13, relief valve 14 etc.Gear pump 16 connects with the pto of motor, the filler opening T of gear pump 16 is communicated with fuel tank 6 by coarse filtration 5, the oil outlet P of gear pump 16 is communicated with manual multi-path reversing valve 11 oil inlet P 1, actuator port E1, the F1 of manual multi-path reversing valve 11 and two bucket cylinders 12, actuator port E2, the F2 of manual multi-path reversing valve 11 is communicated with two arm support oil cylinder 13, in manual multi-path reversing valve 11 and bucket cylinder 12, arm support oil cylinder 13 relief valve 14 is housed.Provide power by motor to gear pump 16, gear pump 16 for hydraulic oil, is handled control by manual multi-path reversing valve 11 to bucket cylinder 12, arm support oil cylinder 13.
The oil circuit that travels includes variable series connection plunger pump 2, two low-speed big torque motors 1, two flushing valves 10, slippage pump 4, rotation oil purifier 7 etc.The filler opening of rotation oil purifier 7 is communicated with fuel tank 6, the oil outlet of rotation oil purifier 7 is by slippage pump 4 plunger pump 2 connections of connecting with variable, variable series connection plunger pump 2 is communicated with two low-speed big torque motors 1 and flushing valve 10 is housed, variable series connection plunger pump 2 connects with the pto of motor, and two low-speed big torque motors 1 respectively connect with a driving wheel by a limit uni-drive gear box or chain-driven unit.Provide power by motor to variable series connection plunger pump 2, by variable series connection plunger pump 2 control low-speed big torque motors 1, low-speed big torque motor 1 drives driving wheel by limit uni-drive gear box or chain-driven unit, realizes travelling of complete machine; Replenish fluid by 4 pairs of the slippage pumps oil circuit that travels.
Manual multi-path reversing valve 11 in the working oil path is communicated with oil radiator 17 by its drain tap T1, and drain tap G1, the G2 of two flushing valves 10 are communicated with oil radiator 17 in the oil circuit that travels, and oil radiator 17 is communicated with fuel tank 6.Dispel the heat and lower the temperature at working oil path, the heat that produces when travelling the oil circuit operation by 17 pairs of hydraulic oil of oil radiator, to guarantee the normal operation of whole hydraulic circuit.
Therefore the utility model is compared with former hydraulic control device, has simple in structurely, reliable, and installation, maintenance is convenient, and machining accuracy is low, characteristics such as low cost of manufacture.
Claims (1)
1. sliding loader novel hydraulic transmission device, include working oil path, the oil circuit that travels, oil radiator (17), fuel tank (6), the gear pump (16) that it is characterized in that working oil path is communicated with fuel tank (6), the manual multi-path reversing valve of working oil path (11) is communicated with oil radiator (17), the variable series connection plunger pump (2) of oil circuit of travelling is communicated with fuel tank (6), the flushing valve (10) of oil circuit of travelling is communicated with oil radiator (17), and oil radiator (17) is communicated with fuel tank (6); Working oil path includes gear pump (16), coarse filtration (5), manual multi-path reversing valve (11), two bucket cylinders (12), two arm support oil cylinder (13), relief valve (14), gear pump (16) connects with the pto of motor, the filler opening of gear pump (16) is communicated with fuel tank (6) by coarse filtration (5), the oil outlet of gear pump (16) is communicated with manual multi-path reversing valve (11), manual multi-path reversing valve (11) and two bucket cylinders (12), two arm support oil cylinder (13) are communicated with, at manual multi-path reversing valve (11) and bucket cylinder (12), relief valve (14) is housed between the arm support oil cylinder (13); The oil circuit that travels includes variable series connection plunger pump (2), two low-speed big torque motors (1), two flushing valves (10), slippage pump (4), rotation oil purifier (7), the filler opening of rotation oil purifier (7) is communicated with fuel tank (6), the oil outlet of rotation oil purifier (7) is by connect with variable plunger pump (2) connection of slippage pump (4), variable series connection plunger pump (2) is communicated with two low-speed big torque motors (1), and flushing valve (10) is housed, variable series connection plunger pump (2) connects with the pto of motor, and two low-speed big torque motors (1) respectively connect with a driving wheel by a limit uni-drive gear box or chain-driven unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200246986U CN201057256Y (en) | 2007-07-03 | 2007-07-03 | Novel hydraulically driving device of sliding loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200246986U CN201057256Y (en) | 2007-07-03 | 2007-07-03 | Novel hydraulically driving device of sliding loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057256Y true CN201057256Y (en) | 2008-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200246986U Expired - Fee Related CN201057256Y (en) | 2007-07-03 | 2007-07-03 | Novel hydraulically driving device of sliding loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057256Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059973A (en) * | 2010-12-30 | 2011-05-18 | 湘电重型装备股份有限公司 | Lifting hydraulic integrated system for large-tonnage electric-wheel mining dumper |
| CN102383460A (en) * | 2011-11-04 | 2012-03-21 | 广西玉柴重工有限公司 | Walking and parking protective device for skid loader |
| CN102046890B (en) * | 2008-05-29 | 2013-01-30 | 克拉克设备公司 | Quick release hose guide |
| CN106122139A (en) * | 2016-08-25 | 2016-11-16 | 柳州市菱丰科技有限公司 | A kind of hydraulic system being applied to pruner |
| CN107191438A (en) * | 2017-07-26 | 2017-09-22 | 无锡市钻通工程机械有限公司 | Closed system heat-radiation loop applied to high-power operating mode |
-
2007
- 2007-07-03 CN CNU2007200246986U patent/CN201057256Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102046890B (en) * | 2008-05-29 | 2013-01-30 | 克拉克设备公司 | Quick release hose guide |
| CN102059973A (en) * | 2010-12-30 | 2011-05-18 | 湘电重型装备股份有限公司 | Lifting hydraulic integrated system for large-tonnage electric-wheel mining dumper |
| CN102059973B (en) * | 2010-12-30 | 2013-01-23 | 湘电重型装备股份有限公司 | Lifting hydraulic integrated system for large-tonnage electric-wheel mining dumper |
| CN102383460A (en) * | 2011-11-04 | 2012-03-21 | 广西玉柴重工有限公司 | Walking and parking protective device for skid loader |
| CN102383460B (en) * | 2011-11-04 | 2014-06-04 | 广西玉柴重工有限公司 | Walking and parking protective device for skid loader |
| CN106122139A (en) * | 2016-08-25 | 2016-11-16 | 柳州市菱丰科技有限公司 | A kind of hydraulic system being applied to pruner |
| CN107191438A (en) * | 2017-07-26 | 2017-09-22 | 无锡市钻通工程机械有限公司 | Closed system heat-radiation loop applied to high-power operating mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 Termination date: 20120703 |