CN208185142U - A kind of oil liquid temperature elevation system and large-tonnage excavator - Google Patents
A kind of oil liquid temperature elevation system and large-tonnage excavator Download PDFInfo
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- CN208185142U CN208185142U CN201820658395.8U CN201820658395U CN208185142U CN 208185142 U CN208185142 U CN 208185142U CN 201820658395 U CN201820658395 U CN 201820658395U CN 208185142 U CN208185142 U CN 208185142U
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- oil
- pilot operated
- valve device
- operated valve
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Abstract
The utility model discloses a kind of oil liquid temperature elevation systems, are used for large-tonnage excavator, oil liquid temperature elevation system includes fuel tank and oil return box；Oil return box is connected with the oiler of counterbalance valve and by-passing valve respectively；The oil outlet of counterbalance valve is connected with the first port of pilot operated valve device, the second port of pilot operated valve device is connected with the oiler of filter, the third port of pilot operated valve device is dissipated by hydraulic oil to be connected with the oiler of filter, and the difference of oil return circuit is realized by the commutation of pilot operated valve device；The oil outlet of by-passing valve is connected with the oiler of filter；The oil outlet of filter is connected with fuel tank.The utility model only passes through the oil liquid commutation an of pilot operated valve device, rises rapidly extremely frigid zones excavator oil temperature, improves working efficiency, while also avoiding oil and dissipating not by the impact of sticky oil liquid, reduces failure rate.
Description
Technical field
The utility model relates to engineering machinery fields, and in particular to a kind of large-tonnage excavator oil liquid temperature elevation system.
Background technique
The large-tonnage excavator job site of extremely frigid zones is worked mostly in opencut, and especially in winter, temperature is extremely low, is dug
After the starting of pick machine, hydraulic oil heating rate is slow, and due to oil viscosity height, big liquid resistance will cause excavator hydraulic oil radiator
Damage, therefore in winter, the radiator failure rate of extremely frigid zones excavator is very high.
Summary of the invention
Insufficient according to prior art, the utility model provides a kind of oil liquid temperature elevation system, only passes through a pilot operated valve device
Oil liquid commutation, rises rapidly extremely frigid zones excavator oil temperature, improves working efficiency, while also avoiding oil and dissipating not by toughening oil
The impact of liquid, reduces failure rate.
The utility model is realized by following technical scheme:
A kind of oil liquid temperature elevation system is used for large-tonnage excavator, and the oil liquid temperature elevation system includes fuel tank and oil return box；Institute
Oil return box is stated to be connected with the oiler of counterbalance valve and by-passing valve respectively；The oil outlet of the counterbalance valve and the first end of pilot operated valve device
Mouth is connected, and the second port of pilot operated valve device is connected with the oiler of filter, and the third port of pilot operated valve device is dissipated by hydraulic oil
It is connected with the oiler of filter, the difference of oil return circuit is realized by the commutation of pilot operated valve device；The oil outlet of the by-passing valve
It is connected with the oiler of filter；The oil outlet of the filter is connected with fuel tank.
Preferably, it is additionally provided with solenoid valve, the Single port of the solenoid valve is connected with pilot operated valve device, the another port of solenoid valve
It is connected with heat button switch；After pressing heat button switch, solenoid valve obtains electric commutation, and pilot operated valve device also commutates therewith.
Preferably, temperature sensor is equipped in the fuel tank, which passes through display for the oil temperature measured
Device is shown.
Preferably, the temperature sensor is connected with the arrival end of Vehicle Controller, the outlet end of Vehicle Controller with
Solenoid valve is connected；
When temperature sensor detection oil outlet temperature reaches setting value, Vehicle Controller controls solenoid valve power loss, pilot operated valve device
It sets back, excavator works normally.
A kind of large-tonnage excavator, the large-tonnage excavator have oil liquid temperature elevation system above-mentioned.
The utility model the utility model has the advantages that
1. being brought rapidly up excavator hydraulic oil liquid in extremely cold environment, improving working efficiency；
2. excavator hydraulic oil is avoided to dissipate the impact by sticky hydraulic oil, the scattered failure rate of hydraulic oil is reduced；
3. hydraulic oil container mounting temperature sensor guarantees that excavator automatically switches to normal work in the temperature for reaching needs
Operation mode.
Detailed description of the invention
Fig. 1 is the structure principle chart of the oil liquid temperature elevation system of the utility model.
Specific embodiment
Below in conjunction with attached drawing, the utility model is further described by specific embodiment.
The oil liquid temperature elevation system of the utility model embodiment can be used for the large-tonnage excavator of the utility model embodiment；
The utility model applies the large-tonnage excavator of example, the oil liquid temperature elevation system with the utility model embodiment.
As shown in Figure 1, a kind of oil liquid temperature elevation system, is used for large-tonnage excavator, oil liquid temperature elevation system includes fuel tank 6 and returns
Fuel tank 9；Oil return box 9 is connected with the oiler of counterbalance valve 3 and by-passing valve 8 respectively；The oil outlet of counterbalance valve 3 and the A of pilot operated valve device 2
Mouth is connected, and the C mouth of pilot operated valve device 2 is connected with the oiler of filter 5, and the B mouth of pilot operated valve device 2 dissipates 4 and filtering by hydraulic oil
The oiler of device 5 is connected, and the difference of oil return circuit is realized by the commutation of pilot operated valve device 2；The oil outlet and filter of by-passing valve 8
5 oiler is connected；The oil outlet of filter 5 is connected with fuel tank 6.
The Single port of solenoid valve 1 is connected with pilot operated valve device 2, and the another port of solenoid valve 1 is connected with heat button switch；When pressing
After lower heat button switch, solenoid valve 1 obtains electric commutation, and pilot operated valve device 2 also commutates therewith.
Further embodiment: with continued reference to temperature sensor 7 shown in Fig. 1, is equipped in fuel tank 6, which will
The oil temperature measured is shown by display.
More further scheme, with continued reference to shown in Fig. 1, temperature sensor 7 is connected with the arrival end of Vehicle Controller, vehicle-mounted
The outlet end of controller is connected with solenoid valve 1；When temperature sensor 7, which detects oil outlet temperature, reaches setting value, Vehicle Controller
1 power loss of solenoid valve is controlled, pilot operated valve device 2 sets back, and excavator works normally.
A kind of large-tonnage excavator has oil liquid temperature elevation system, which includes fuel tank 6 and oil return box 9；It returns
Fuel tank 9 is connected with the oiler of counterbalance valve 3 and by-passing valve 8 respectively；The oil outlet of counterbalance valve 3 is connected with the A of pilot operated valve device 2 mouth
Logical, C mouth of pilot operated valve device 2 is connected with the oiler of filter 5, and the B mouth of pilot operated valve device 2 passes through entering for hydraulic oil scattered 4 and filter 5
Hydraulic fluid port is connected；The oil outlet of by-passing valve 8 is connected with the oiler of filter 5；The oil outlet of filter 5 is connected with fuel tank 6
It is logical.The Single port of solenoid valve 1 is connected with pilot operated valve device 2, and the another port of solenoid valve 1 is connected with heat button switch；Add when pressing
After hot button switch, solenoid valve 1 obtains electric commutation, and pilot operated valve device 2 also commutates therewith.
Temperature sensor 7 is equipped in fuel tank 6, which shows the oil temperature measured by display.Temperature
Sensor 7 is connected with the arrival end of Vehicle Controller, and the outlet end of Vehicle Controller is connected with solenoid valve 1；When temperature sensor 7
When detection oil outlet temperature reaches setting value, Vehicle Controller controls 1 power loss of solenoid valve, and pilot operated valve device 2 sets back, and excavator is normal
Work.
The course of work:
When temperature is extremely low in winter, after excavating machine starting, display shows low-temperature warning signal, presses heat button and opens
It closes, solenoid valve 1 obtains electric commutation, and pilot operated valve device 2 also commutates therewith, and excavator in simple action, keep away by the oil liquid in oil return box 9 at this time
It crosses hydraulic oil and dissipates 4, an oil liquid flows back to fuel tank 6 via counterbalance valve 3, pilot operated valve device 2, filter 5, and another oil liquid lease making is by bypassing
Valve 8, filter 5 flow back to fuel tank 6.When temperature sensor 7 detects that hydraulic fluid temperature reaches setting value, Vehicle Controller can be certainly
Dynamic to make 1 power loss of solenoid valve (be turned off manually), excavator is restored to normal operating conditions, i.e. the right position of pilot operated valve device 2 works.
Although with reference to exemplary embodiment describes the application, it is to be understood that, term used be explanation and it is exemplary,
Term and not restrictive.The spirit or reality that can be embodied in a variety of forms due to the application without departing from utility model
Matter, it should therefore be appreciated that above-described embodiment is not limited to any of the foregoing details, and the spirit defined by appended claims
It all should be accompanying power with the whole change and modification widely explained, therefore fallen into claim or its equivalent scope in range
Benefit requires to be covered.
Claims (5)
1. a kind of oil liquid temperature elevation system is used for large-tonnage excavator, it is characterised in that: the oil liquid temperature elevation system includes fuel tank
(6) and oil return box (9)；
The oil return box (9) is connected with the oiler of counterbalance valve (3) and by-passing valve (8) respectively；
The oil outlet of the counterbalance valve (3) is connected with the first port of pilot operated valve device (2), the second port and mistake of pilot operated valve device (2)
The oiler of filter (5) is connected, and the third port of pilot operated valve device (2) dissipates the oiler phase of (4) and filter (5) by hydraulic oil
The difference of oil return circuit is realized in connection by the commutation of pilot operated valve device (2)；
The oil outlet of the by-passing valve (8) is connected with the oiler of filter (5)；
The oil outlet of the filter (5) is connected with fuel tank (6).
2. a kind of oil liquid temperature elevation system according to claim 1, it is characterised in that: be additionally provided with solenoid valve (1), the electromagnetism
The Single port of valve (1) is connected with pilot operated valve device (2), and the another port of solenoid valve (1) is connected with heat button switch；
After pressing heat button switch, solenoid valve (1) obtains electric commutation, and pilot operated valve device (2) also commutates therewith.
3. a kind of oil liquid temperature elevation system according to claim 2, it is characterised in that: be equipped with temperature in the fuel tank (6)
Sensor (7), the temperature sensor (7) show the oil temperature measured by display.
4. a kind of oil liquid temperature elevation system according to claim 3, it is characterised in that: the temperature sensor (7) with it is vehicle-mounted
The arrival end of controller is connected, and the outlet end of Vehicle Controller is connected with solenoid valve (1)；
When temperature sensor (7) detection oil outlet temperature reaches setting value, Vehicle Controller controls solenoid valve (1) power loss, hydraulic control
Valve (2) sets back, and excavator works normally.
5. a kind of large-tonnage excavator, it is characterised in that: the large-tonnage excavator has described in any one of Claims 1-4
Oil liquid temperature elevation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820658395.8U CN208185142U (en) | 2018-05-04 | 2018-05-04 | A kind of oil liquid temperature elevation system and large-tonnage excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820658395.8U CN208185142U (en) | 2018-05-04 | 2018-05-04 | A kind of oil liquid temperature elevation system and large-tonnage excavator |
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| Publication Number | Publication Date |
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| CN208185142U true CN208185142U (en) | 2018-12-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591186A (en) * | 2018-05-04 | 2018-09-28 | 徐州徐工矿山机械有限公司 | A kind of large-tonnage excavator fluid temperature elevation system and control method |
-
2018
- 2018-05-04 CN CN201820658395.8U patent/CN208185142U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591186A (en) * | 2018-05-04 | 2018-09-28 | 徐州徐工矿山机械有限公司 | A kind of large-tonnage excavator fluid temperature elevation system and control method |
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