CN204878092U - Closed hydraulic power control system - Google Patents
Closed hydraulic power control system Download PDFInfo
- Publication number
- CN204878092U CN204878092U CN201520390176.2U CN201520390176U CN204878092U CN 204878092 U CN204878092 U CN 204878092U CN 201520390176 U CN201520390176 U CN 201520390176U CN 204878092 U CN204878092 U CN 204878092U
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- Prior art keywords
- pump
- motor
- hydraulic
- power control
- control system
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- Expired - Fee Related
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Abstract
The utility model discloses a closed hydraulic power control system, including main motor, two -way hydraulic pump, first overflow valve, two -way hydraulic motor, pressure relay, energy storage ware, second overflow valve, check valve, slippage pump, benefit oil motor and oil filter, two -way hydraulic pump connection owner's motor, two -way hydraulic motor is connected at two -way hydraulic pump both ends, the check valve sets up at pressure relay and on mending oil pump connection's pipeline, the second overflow valve is connected and is connected pipeline one side at the check valve, mend oil pump connection and mend oily motor, the oil filter sets up on the slippage pump. This closed hydraulic power control system, speed that the input rotational speed that adopts motor variable frequency speed governing(VFSG)'s modal alteration hydraulic pump comes the output flow rate of regulator solution press pump to reach governing system execute component can replace original variable pump with the constant delivery pump. It is few that frequency conversion hydraulic transmission system has a component figure, carries out the system integration easily, small, light in weight, advantage such as efficient.
Description
Technical field
The utility model relates to energetics and controls application, is specially a kind of Closed Hydraulic power control system.
Background technique
Dynamicliquid pressure technology is a kind of novel energy-conserving drive technology, has a wide range of applications in many mechanized equipments such as lathe, Hydraulic elevating mechanism, injection machine.
Existing dynamic hydraulic system does not possess the powerdriven effect of variable frequency hydraulic; And then the living needs of people can not be met.
Model utility content
The purpose of this utility model is to provide a kind of Closed Hydraulic power control system, and its structure is simple, with low cost, easy to use.
For achieving the above object, the utility model provides following technological scheme: a kind of Closed Hydraulic power control system, comprises mair motor, bidirectional hydraulic pump, the first relief valve, two-way hydraulic motor, pressure relay, accumulator, the second relief valve, one-way valve, slippage pump, repairing motor and oil purifier; Described bidirectional hydraulic pump connects mair motor; Described bidirectional hydraulic pump two ends connect two-way hydraulic motor; Described pressure relay connects accumulator; Described one-way valve is arranged on the pipeline that pressure relay is connected with slippage pump; Described second relief valve is connected to one-way valve connecting line side; Described slippage pump connects repairing motor; Described oil purifier is arranged on slippage pump.
Further, the pipeline that described bidirectional hydraulic pump two ends connect two-way hydraulic motor is connected with repairing shuttle valve and oil spilling shuttle valve.
Further, described bidirectional hydraulic pump is connected with COMPUTER DETECTION control unit.
Further, described mair motor is connected with frequency variator.
Compared with prior art, the beneficial effects of the utility model are: this Closed Hydraulic power control system, the output flow that the input speed adopting the mode of motor variable-frequency speed-regulating to change oil hydraulic pump carrys out regulator solution press pump reaches the speed of regulating system executive component, can replace original variable displacement pump with metering pump.It is few that variable frequency hydraulic transmission system has component number, easily carries out the system intergration, and volume is little, lightweight, efficiency advantages of higher.Overall structure is simple, practical, is easy to promote the use of.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
In reference character: mair motor 1; Bidirectional hydraulic pump 2; Repairing shuttle valve 3; Oil spilling shuttle valve 4; First relief valve 5; Two-way hydraulic motor 6; Pressure relay 7; Accumulator 8; Second relief valve 9; One-way valve 10; Slippage pump 11; Repairing motor 12; Oil purifier 13.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the utility model provides a kind of technological scheme: a kind of Closed Hydraulic power control system, comprises mair motor 1, bidirectional hydraulic pump 2, first relief valve 5, two-way hydraulic motor 6, pressure relay 7, accumulator 8, second relief valve 9, one-way valve 10, slippage pump 11, repairing motor 12 and oil purifier 13; Described bidirectional hydraulic pump 2 connects mair motor 1; Described bidirectional hydraulic pump 2 two ends connect two-way hydraulic motor 6; Described pressure relay 7 connects accumulator 8; Described one-way valve 10 is arranged on the pipeline that pressure relay 7 is connected with slippage pump 11; Described second relief valve 9 is connected to one-way valve 10 connecting line side; Described slippage pump 11 connects repairing motor 12; Described oil purifier 13 is arranged on slippage pump 11.
Further, the pipeline that described bidirectional hydraulic pump 2 two ends connect two-way hydraulic motor 6 is connected with repairing shuttle valve 3 and oil spilling shuttle valve 4.
Further, described bidirectional hydraulic pump 2 is connected with COMPUTER DETECTION control unit.
Further, described mair motor 1 is connected with frequency variator.
Action principle of the present utility model is: this power unit is primarily of main oil hydraulic circuit and feed circuit two-part composition.Working connection adopts bidirectional hydraulic pump, by being regulated the sense of rotation of bidirectional hydraulic pump by the rotating speed of inverter control motor.Oil liquid leakage in main oil hydraulic circuit is supplemented by shuttle valve by feed circuit, and in main oil hydraulic circuit, relief valve plays safety protection effect to system.Feed circuit, primarily of compositions such as repairing motor, slippage pump, accumulator and pressure relayes, supplements fluid can to main oil hydraulic circuit by the action of pressure relay.
Although illustrate and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and spirit, scope of the present utility model is by claims and equivalents thereof.
Claims (4)
1. a Closed Hydraulic power control system, comprises mair motor, bidirectional hydraulic pump, the first relief valve, two-way hydraulic motor, pressure relay, accumulator, the second relief valve, one-way valve, slippage pump, repairing motor and oil purifier; It is characterized in that: described bidirectional hydraulic pump connects mair motor; Described bidirectional hydraulic pump two ends connect two-way hydraulic motor; Described pressure relay connects accumulator; Described one-way valve is arranged on the pipeline that pressure relay is connected with slippage pump; Described second relief valve is connected to one-way valve connecting line side; Described slippage pump connects repairing motor; Described oil purifier is arranged on slippage pump.
2. a kind of Closed Hydraulic power control system according to claim 1, is characterized in that: the pipeline of described bidirectional hydraulic pump two ends connection two-way hydraulic motor is connected with repairing shuttle valve and oil spilling shuttle valve.
3. a kind of Closed Hydraulic power control system according to claim 1, is characterized in that: described bidirectional hydraulic pump is connected with COMPUTER DETECTION control unit.
4. a kind of Closed Hydraulic power control system according to claim 1, is characterized in that: described mair motor is connected with frequency variator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390176.2U CN204878092U (en) | 2015-06-09 | 2015-06-09 | Closed hydraulic power control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390176.2U CN204878092U (en) | 2015-06-09 | 2015-06-09 | Closed hydraulic power control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878092U true CN204878092U (en) | 2015-12-16 |
Family
ID=54822469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520390176.2U Expired - Fee Related CN204878092U (en) | 2015-06-09 | 2015-06-09 | Closed hydraulic power control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130251A (en) * | 2019-06-20 | 2019-08-16 | 宁波易捷环卫设备有限公司 | It is a kind of can the switching of high low-speed mode road sweeper running gear |
-
2015
- 2015-06-09 CN CN201520390176.2U patent/CN204878092U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130251A (en) * | 2019-06-20 | 2019-08-16 | 宁波易捷环卫设备有限公司 | It is a kind of can the switching of high low-speed mode road sweeper running gear |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160609 |