CN2522656Y - Hydraulic stepless speed regulating device for sewage-cleaning machine - Google Patents
Hydraulic stepless speed regulating device for sewage-cleaning machine Download PDFInfo
- Publication number
- CN2522656Y CN2522656Y CN 02212598 CN02212598U CN2522656Y CN 2522656 Y CN2522656 Y CN 2522656Y CN 02212598 CN02212598 CN 02212598 CN 02212598 U CN02212598 U CN 02212598U CN 2522656 Y CN2522656 Y CN 2522656Y
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- valve
- oil
- motor
- walking
- sewage
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- Expired - Fee Related
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Abstract
The utility model relates to a Hydraulic stepless speed regulating device for sewage-cleaning machine which comprises an oil-supply device connected with an oil pipe, a proportionate flow valve, a reversing valve, an oil-rising motor and a oil-transferring motor. The outlet of the oil-supply device is connected with the inlet of the proportionate flow valve. The outlet of the proportionate flow valve is connected with two reversing valves. One of the reversing valves is connected with the oil-rising motor, and the other reversing valve is connected with two oil-transferring motors through a diverter valve. The utility model takes use of proportionate flow valve to control the rotation speed of the hydraulic-pressure oil motor so as to realize stepless adjustment. In this way, the stepless adjustment on the main rising and transferring of the sewage-cleaning machine is realized. The utility model simplifies the speed-adjustment circuit and enhances the reliability, and can easily realize the automatic control. Because a hydraulic-pressure oil motor is used, the utility model can significantly reduce the volume of the rising mechanism of the sewage-cleaning machine. The utility model is of stable and reasonable structure. And the weight of the whole machine is greatly reduced.
Description
Technical field
The utility model relates to a kind of sewage-cleaning machine control gear, particularly relates to a kind of walking of sewage-cleaning machine and the arrangements for speed regulation that hoist.
Background technique
Now the sewage-cleaning machine produced of China also all rests on the level of mechanical gear transmission, and modernized clean-up operation require to remove contamination function move automatically, automatically contraposition, automatic pollutant removal, return automatically, to reach unmanned.And in this operating mode, in order to improve the working efficiency of sewage-cleaning machine, require again the master of sewage-cleaning machine hoist by slowly-fast-slow work stepless speed regulation, and the large vehicle walking of sewage-cleaning machine also be by slowly-fast-slow work cycle stepless speed regulation, operate steadily and the requirement of contraposition automatically to reach.Therefore, solve that the slusher master hoists and large vehicle walking stepless speed regulation problem becomes key.Universal method is to adopt the mode of motor-break-speed reducer at present, carry out frequency control of motor speed with frequency variator, will cause equipment volume big like this, equipment rack upper mounting plate area and intensity are strengthened, it is top-heavy that integral device seems, move not steadily, and noise is very big, wherein only the speed reducer noise just greater than 80 decibels, complete machine weight strengthens, fault is more, and power loss is big, and the contraposition automatically of walking stops.
Summary of the invention
The purpose of this utility model is to provide a kind of sewage-cleaning machine hydraulic stepless speed regulating device, the master of sewage-cleaning machine is hoisted and large vehicle walking is realized stepless speed regulation, reducing the volume of arrangements for speed regulation, and improves the automatization level of sewage-cleaning machine.
For achieving the above object, the utility model adopts following technological scheme: a kind of sewage-cleaning machine hydraulic stepless speed regulating device, it comprises the oil supplying device, proportional flow control valve, the selector valve that are connected by oil pipe, oil motor and walking oil motor hoist, the oil supplying device outlet is connected with the proportional flow control valve import, the proportional flow control valve outlet is connected with two selector valves, one of them selector valve is connected with the oil motor that hoists, and the another one selector valve is connected with two walking oil motors by diverter valve.
Described selector valve is an electro-hydraulic reversing valve.
For making this device possess manual control function, also be connected to manual overvide in the oil supplying device outlet, this manual overvide is made up of hoist hand-operated direction valve and walking hand-operated direction valve, the hand-operated direction valve that hoists all is connected with the oil supplying device outlet by solenoid valve with the import of walking hand-operated direction valve, the outlet of hand-operated direction valve and walking hand-operated direction valve of hoisting is connected with the hoist oil motor and the oil motor of walking respectively, have two two-position four-way solenoid directional control valves to be serially connected in described two electro-hydraulic reversing valves respectively after.
Described oil supplying device is made up of oil purifier, oil pump, one-way valve, relief valve, pressure relay, and oil purifier, oil pump, one-way valve connect in turn, and relief valve and pressure relay are connected on the working connection.
After adopting all-hydraulic control, the utility model proportional flow control valve speed governing, its flow is stepless adjustable from 5L/min-200L/min, and control hydraulic oil motor rotating speed realize stepless adjustable, thereby realized the stepless adjustable of main lifting and walking of removing contamination.The utility model has been simplified flow control circuit, has improved reliability, and is easy to realize automatic control.Because the utility model has adopted hydraulic oil motor, because the oil hydraulic motor volume is little, can directly cooperate with the hoisting drum end, thereby motor, brake and speed reducer have been cancelled, the lifting mechanism volume is reduced greatly, and the sewage-cleaning machine upper mounting plate reduces, and forms the structure of little bottom, top big (being originally that big bottom, top is little), the total dimensional stability is reasonable, and complete machine weight alleviates greatly.And behind the employing hydraulic oil motor, easier realization conversion automatic and that manually control as long as manual automatic transfer switch is set, just can realize manually with automatically changing fast easily.In addition, adopt all-hydraulic control to make complete machine operation noise reduce greatly.
Description of drawings
Accompanying drawing is depicted as structural representation of the present utility model.
Embodiment
Sewage-cleaning machine hydraulic stepless speed regulating device shown in the drawings comprises the oil supplying device, proportional flow control valve, the electro-hydraulic reversing valve that are connected by oil pipe, oil motor and walking oil motor hoist.Oil supplying device is made up of oil purifier 1, oil pump 2, one-way valve 3, relief valve 6, pressure relay 5, and oil purifier 1, oil pump 2, one-way valve 3 connect in turn, and relief valve 6 and pressure relay 5 are connected on the working connection whole device is played a protective role.The oil supplying device outlet is connected with proportional flow control valve 4 imports, and proportional flow control valve 4 outlets are connected with electro-hydraulic reversing valve 9,12, and electro-hydraulic reversing valve 9 is connected with the oil motor 11 that hoists, and electro-hydraulic reversing valve 12 is connected with two walking oil motors 15 by diverter valve 14.Adopt electro-hydraulic reversing valve can make the commutating speed of spool steady, avoid producing hydraulic shock.Certainly, also can adopt solenoid directional control valve.The oil supplying device outlet also is connected to manual overvide, this manual overvide by the Joystick 17 that hoists, the walking Joystick 18, hoist hand-operated direction valve 7 and the walking hand-operated direction valve 8 form, handle 17 links to each other with the valve rod of selector valve 7, handle 18 links to each other with the valve rod of selector valve 8, the hand-operated direction valve 7 that hoists all is connected with the oil supplying device outlet by solenoid valve 16 with 8 imports of walking hand-operated direction valve, the outlet of hand-operated direction valve 7 of hoisting is connected with oil motor 11 imports that hoist, and the outlet of walking hand-operated direction valve 8 is connected by the import of diverter valve 14 with the oil motor 15 of walking.For controlling automatically and the conversion of manual state, behind electro-hydraulic reversing valve 9 and electro-hydraulic reversing valve 12, be serially connected with solenoid directional control valve 10 and 13 respectively.
Its working principle is: under automatic control work condition, control by programmable controller PLC, solenoid valve 16 dead electricity are closed, two-position four-way solenoid directional control valve 10,13 dead electricity are in open position, pressure oil enters proportional flow control valve 4 by oil purifier 1, oil pump 2, one-way valve 3, lead up to electro-hydraulic reversing valve 9, solenoid directional control valve 10 from the hydraulic oil of proportional flow control valve 4 output and enter the oil motor 11 that hoists, electro-hydraulic reversing valve 12, solenoid directional control valve 13 are passed through in another road, and enter respectively in two walking oil motors 15 by diverter valve 14 shuntings.By regulating the input current of proportional flow control valve, and passing ratio the Flow valve controller, amplifier and the force motor that itself carry just can be with regard to the openings of sizes of controllable flow metered valve, thereby are the input flow rate of can regulate oil motor 11 and 15.The current signal input end I of proportional flow control valve is connected with programmable controller PLC, just the input current of proportional flow control valve can be set at continuous proportional amplified current signal, under the control of programmable controller PLC, proportional flow control valve just can convert the current signal of setting to the flow of continuous proportional amplification, thereby realizes stepless speed regulation.In entire work process, hoist oil motor and the interlocking of walking oil motor can not be worked simultaneously.
When manually controlling, open by programmable controller PLC control electromagnetic valve 16,10,13 energisings of two-position four-way solenoid directional control valve are in close stance, pressure oil enters hand-operated direction valve 7 and 8 by solenoid valve 16, Joystick 17 and 18 enable possition, slowly drawing handle is forward or backward shifted the handle stop then onto, just can control the size of hand-operated direction valve 7,8 openings and realize speed governing.Want when manually controlling slowly to open selector valve 16 earlier, also will slowly close when running abort.
Claims (4)
1, a kind of sewage-cleaning machine hydraulic stepless speed regulating device, it is characterized in that, it comprises the oil supplying device, proportional flow control valve, the selector valve that are connected by oil pipe, oil motor and walking oil motor hoist, the oil supplying device outlet is connected with the proportional flow control valve import, the proportional flow control valve outlet is connected with two selector valves, one of them selector valve is connected with the oil motor that hoists, and the another one selector valve is connected with two walking oil motors by diverter valve.
2, stepless speed-regulating device as claimed in claim 1 is characterized in that, described selector valve is an electro-hydraulic reversing valve.
3, stepless speed-regulating device as claimed in claim 2, it is characterized in that, the oil supplying device outlet also is connected to manual overvide, this manual overvide is made up of hoist hand-operated direction valve and walking hand-operated direction valve, the hand-operated direction valve that hoists all is connected with the oil supplying device outlet by solenoid valve with the import of walking hand-operated direction valve, the outlet of hand-operated direction valve and walking hand-operated direction valve of hoisting is connected with the hoist oil motor and the oil motor of walking respectively, have two two-position four-way solenoid directional control valves to be serially connected in described two electro-hydraulic reversing valves respectively after.
4, as claim 1 or 2 or 3 described stepless speed-regulating devices, it is characterized in that, oil supplying device is made up of oil purifier, oil pump, one-way valve, relief valve, pressure relay, and oil purifier, oil pump, one-way valve connect in turn, and relief valve and pressure relay are connected on the working connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02212598 CN2522656Y (en) | 2002-01-30 | 2002-01-30 | Hydraulic stepless speed regulating device for sewage-cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02212598 CN2522656Y (en) | 2002-01-30 | 2002-01-30 | Hydraulic stepless speed regulating device for sewage-cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522656Y true CN2522656Y (en) | 2002-11-27 |
Family
ID=33692248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02212598 Expired - Fee Related CN2522656Y (en) | 2002-01-30 | 2002-01-30 | Hydraulic stepless speed regulating device for sewage-cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522656Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350701A (en) * | 2011-07-22 | 2012-02-15 | 上海永乾机电有限公司 | Balance control method and device for boosting manipulator or pneumatic balance crane |
| WO2013000168A1 (en) * | 2011-06-30 | 2013-01-03 | 长沙中联重工科技发展股份有限公司 | Control method and system for hydraulic motor |
| CN108730251A (en) * | 2018-05-30 | 2018-11-02 | 重庆宝钢汽车钢材部件有限公司 | Integrated speed-regulating hydraulic valve group |
-
2002
- 2002-01-30 CN CN 02212598 patent/CN2522656Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013000168A1 (en) * | 2011-06-30 | 2013-01-03 | 长沙中联重工科技发展股份有限公司 | Control method and system for hydraulic motor |
| CN102350701A (en) * | 2011-07-22 | 2012-02-15 | 上海永乾机电有限公司 | Balance control method and device for boosting manipulator or pneumatic balance crane |
| CN102350701B (en) * | 2011-07-22 | 2014-12-24 | 上海永乾机电有限公司 | Balance control method and device for boosting manipulator or pneumatic balance crane |
| CN108730251A (en) * | 2018-05-30 | 2018-11-02 | 重庆宝钢汽车钢材部件有限公司 | Integrated speed-regulating hydraulic valve group |
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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: 20021127 Termination date: 20110130 |