CN204299984U - The flushing oil-supplementing system of super-tonnage excavator closed rotary system - Google Patents
The flushing oil-supplementing system of super-tonnage excavator closed rotary system Download PDFInfo
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- CN204299984U CN204299984U CN201420598151.7U CN201420598151U CN204299984U CN 204299984 U CN204299984 U CN 204299984U CN 201420598151 U CN201420598151 U CN 201420598151U CN 204299984 U CN204299984 U CN 204299984U
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Abstract
The utility model discloses a kind of flushing oil-supplementing system of super-tonnage excavator closed rotary system, make rotary system obtain abundant repairing and flushing, and make system reach the optimum state, and at crucial hydraulic fluid port sensor installation, realize reporting to the police under ultimate state, ensure the safe and reliable of rotary system.This flushing recharging oil device, comprise: rotary motor, closed rotary pump, fuel tank, slippage pump, accumulator, flushing Fill valve and relief valve, when the main hydraulic fluid port pressure of rotary motor reaches the cracking pressure of rinsing Fill valve, flushing Fill valve is opened, that rinses rotary system enters fuel tank, slippage pump carries out repairing to the Fa mouth of rotary pump simultaneously, for avoiding the repairing when starting or brake insufficient, at the repairing mouth of a rotary pump accumulator in parallel, keep rotary system Fa to continue repairing, unnecessary flow rinses the housing of rotary pump by relief valve.When occurring that housing pollution is blocked or oil temperature exceedes setting value, pollution alarm and temperature alarm can send alarm signal.
Description
Technical field
The utility model relates to a kind of flushing oil-supplementing system of super-tonnage excavator closed rotary system.
Background technique
Hydraulic closed rotary system stable drive, is easy to realize stepless change, and when commutating, hydraulic shock is little, is widely used in super-tonnage excavator.But closed system does not have oil suction and oil return system, need special pump for its repairing, the new fluid supplemented plays the housing and refrigerating function that rinse rotary system.Because excavator operating mode is complicated, work under bad environment, particularly when turning round startup and braking, due to the overflow of system, the repairing mouth pressure of rotary system may be made to diminish, hydraulic oil magnitude of recruitment is not enough, rotary system can be caused to inhale empty, damage hydraulic element.Closed system should keep sufficient repairing amount, and should keep higher turbidity test and good cooling effect.
Summary of the invention
The purpose of this utility model is the flushing oil-supplementing system that will provide a kind of super-tonnage excavator closed rotary system, realizes closed rotary system and is fully rinsed repairing, and avoid emptying phenomenon.
Technological scheme adopted to achieve these goals: a kind of flushing oil-supplementing system of super-tonnage excavator closed rotary system, comprising: rotary motor, closed rotary pump, fuel tank, also comprise, slippage pump, accumulator, flushing Fill valve and relief valve; Rinse Fill valve to be connected on the loop that closed rotary pump and rotary motor form, described flushing Fill valve comprises flushing valve and Fill valve, and the cracking pressure of flushing valve is set to 5bar, and Fill valve cracking pressure is set to 16bar.When the main hydraulic fluid port working pressure of rotary motor reaches the cracking pressure of rinsing Fill valve, rinse Fill valve and open, after rotary decelerating engine housing is rinsed, enter fuel tank.
Slippage pump accumulator in parallel, and be connected to the Fa mouth of closed rotary pump, slippage pump starts when Fill valve is opened, and slippage pump carries out repairing and cooling by the Fa mouth of rotary pump to rotary system.
One end of relief valve connects fuel tank, the other end is connected on the connecting pipeline of slippage pump and closed rotary pump, unnecessary flow rinses the housing of rotary pump by relief valve c, when rotary motor starts braking, due to the overflow of relief valve, the underfed of slippage pump may be there is, rotary system emptying phenomenon, in order to avoid this phenomenon, an accumulator in parallel at Fa place, can realize the function being continuously rotary system repairing.
Further, the leakage hydraulic fluid port of rotary motor is provided with temperature transducer and oil contamination detecting sensor.
Further, the leakage hydraulic fluid port of closed rotary pump is provided with temperature transducer and oil contamination detecting sensor.
When pollution is blocked or oil temperature exceedes specified value, pollution alarm and temperature alarm can send alarm signal, maintenance down, ensure that closed rotary security of system works reliably.
The utility model, by the method for repairing mouth parallel sensor, realize the lasting repairing to enclosed oil suction, by the method at repairing mouth accumulator in parallel, avoid occurring rotary system emptying phenomenon when turning round and starting and brake due to overflow, and the leakage hydraulic fluid port of rotary pump and rotary motor is provided with oil contamination detecting sensor and temperature transducer, warning is there will be when there is housing blocks or high oil temperature, avoid the damage of rotary system hydraulic element, ensure turbidity test and oil liquid temperature the best of system.
Accompanying drawing explanation
Fig. 1 is systematic schematic diagram of the present utility model.
In figure: 1. rotary motor, 2. closed rotary pump, 3. fuel tank, 4. slippage pump, 5. accumulator, 6. rinses Fill valve, 7. relief valve.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
In FIG, a kind of flushing oil-supplementing system of super-tonnage excavator closed rotary system, comprising: rotary motor 1, closed rotary pump 2, fuel tank 3, also comprise, slippage pump 4, accumulator 5, flushing Fill valve 6 and relief valve 7; Rinse Fill valve 6 to be connected on the loop that closed rotary pump 2 and rotary motor 1 form, described flushing Fill valve 6 comprises flushing valve and Fill valve, and the cracking pressure of flushing valve is set to 5bar, and Fill valve cracking pressure is set to 16bar.When the main hydraulic fluid port working pressure of rotary motor reaches the cracking pressure of rinsing Fill valve, rinse Fill valve 6 and open, after rotary decelerating engine housing is rinsed, enter fuel tank 3.
Slippage pump 4 accumulator 5 in parallel, and be connected to the Fa mouth of closed rotary pump 2, slippage pump 4 starts when Fill valve is opened, and slippage pump 4 carries out repairing and cooling by the Fa mouth of rotary pump to rotary system.
One end of relief valve 7 connects fuel tank 3, the other end is connected to slippage pump 4 with on the connecting pipeline of closed rotary pump 2, unnecessary flow rinses the housing of rotary pump by relief valve 7, when rotary motor 1 starts braking, due to the overflow of relief valve 7, the underfed of slippage pump 4 may be there is, rotary system emptying phenomenon, in order to avoid this phenomenon, at Fa place, an accumulator 5 in parallel, can realize the function being continuously rotary system repairing.
Further, the leakage hydraulic fluid port of rotary motor 1 is provided with temperature transducer and oil contamination detecting sensor.
Further, the leakage hydraulic fluid port of closed rotary pump 2 is provided with temperature transducer and oil contamination detecting sensor.
Oil contamination detecting sensor is mainly used in the detection of oil particle pollution degree.
The specific works process of system is: when digger revolving system works, the main hydraulic fluid port A of rotary motor 1, B pressure reduction becomes large, when being greater than 5bar pressure, flushing valve commutation is opened, main hydraulic fluid port pressure reduction continues to be raised to when reaching 16bar, Fill valve is opened, flushing flow rate flows to fuel tank 3 by Fill valve, simultaneously, slippage pump 4 passes through the repairing mouth Fa of closed rotary pump 2 to system repairing, the hydraulic oil of cooling is made to enter system, unnecessary hydraulic oil can be rinsed more fully by relief valve 7 pairs of rotary pump housings, when rotary system starts and brake, due to the overflow of relief valve 7, the insufficient phenomenon of repairing amount may be there is, cause the suction of rotary system empty, damage hydraulic parts.The utility model increases a special purpose energy storage device 5 in parallel at the repairing mouth of rotary pump, and slippage pump 4 can be that accumulator 5 supplements fluid in advance, and when slippage pump 4 repairing amount is inadequate, can supplement not enough fluid by accumulator 5, be the repairing of rotary system persistency.The drain tap of motor and the drain tap of rotary pump are all equipped with temperature transducer and oil contamination detecting sensor; when there being system to have metal fragment to pollute; oil contamination detecting sensor can send alarm signal; and when rotary system oil temperature rises to limiting temperature; the temperature alarm of motor and rotary pump also can send heat alarm, any one sensor alarm of rotary system, and rotary pump pivot angle signal Pa, Pb can become little; now answer shutdown maintenance, to ensure the safety of system.
Claims (3)
1. a flushing oil-supplementing system for super-tonnage excavator closed rotary system, comprising:
Rotary motor (1);
Closed rotary pump (2);
Fuel tank (3);
It is characterized in that:
Also comprise, slippage pump (4), accumulator (5), flushing Fill valve (6) and relief valve (7);
Rinse Fill valve (6) to be connected on the loop that closed rotary pump (2) and rotary motor (1) form, described flushing Fill valve (6) comprises flushing valve and Fill valve;
Slippage pump (4) accumulator in parallel (5), and the Fa mouth being connected to closed rotary pump (2), slippage pump (4) starts when Fill valve is opened;
One end of relief valve (7) connects fuel tank (3), and the other end is connected to slippage pump (4) with on the connecting pipeline of closed rotary pump (2).
2. the flushing oil-supplementing system of a kind of super-tonnage excavator closed rotary system according to claim 1, is characterized in that: the leakage hydraulic fluid port of rotary motor (1) is provided with temperature transducer and oil contamination detecting sensor.
3. the flushing oil-supplementing system of a kind of super-tonnage excavator closed rotary system according to claim 1, is characterized in that: the leakage hydraulic fluid port of closed rotary pump (2) is provided with temperature transducer and oil contamination detecting sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420598151.7U CN204299984U (en) | 2014-10-16 | 2014-10-16 | The flushing oil-supplementing system of super-tonnage excavator closed rotary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420598151.7U CN204299984U (en) | 2014-10-16 | 2014-10-16 | The flushing oil-supplementing system of super-tonnage excavator closed rotary system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299984U true CN204299984U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420598151.7U Active CN204299984U (en) | 2014-10-16 | 2014-10-16 | The flushing oil-supplementing system of super-tonnage excavator closed rotary system |
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| CN (1) | CN204299984U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948409A (en) * | 2017-05-23 | 2017-07-14 | 徐州徐工挖掘机械有限公司 | Super-tonnage excavator closed rotary rinses oil piping system |
| CN109563694A (en) * | 2016-08-12 | 2019-04-02 | 卡特彼勒公司 | The closed-loop control of swing |
| CN110159618A (en) * | 2019-06-28 | 2019-08-23 | 无锡市钻通工程机械有限公司 | A kind of hydraulic closed flush loop |
-
2014
- 2014-10-16 CN CN201420598151.7U patent/CN204299984U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109563694A (en) * | 2016-08-12 | 2019-04-02 | 卡特彼勒公司 | The closed-loop control of swing |
| CN109563694B (en) * | 2016-08-12 | 2020-08-21 | 卡特彼勒公司 | Closed loop control of swing |
| CN106948409A (en) * | 2017-05-23 | 2017-07-14 | 徐州徐工挖掘机械有限公司 | Super-tonnage excavator closed rotary rinses oil piping system |
| CN110159618A (en) * | 2019-06-28 | 2019-08-23 | 无锡市钻通工程机械有限公司 | A kind of hydraulic closed flush loop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180502 Address after: 221000 39 Gaoxin Road, Xuzhou economic and Technological Development Zone, Xuzhou, Jiangsu Patentee after: Xuzhou Xugong Mining Machinery Co., Ltd. Address before: 221000 39 Gaoxin Road, Xuzhou Economic Development Zone, Xuzhou, Jiangsu Patentee before: XCMG Excavator Machinery Co., Ltd. |