CN212337786U - Hydraulic oil cooling system and underground scraper - Google Patents
Hydraulic oil cooling system and underground scraper Download PDFInfo
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- CN212337786U CN212337786U CN202021074792.4U CN202021074792U CN212337786U CN 212337786 U CN212337786 U CN 212337786U CN 202021074792 U CN202021074792 U CN 202021074792U CN 212337786 U CN212337786 U CN 212337786U
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Abstract
The utility model discloses a hydraulic oil cooling system and underground scraper, cooling system include hydraulic pump, oil tank, transmission system, fan and radiator, and the hydraulic pump provides power for the fan, and the radiator is the hydraulic oil work of transmission system and oil tank respectively. The heat dissipation system further comprises a controller, an electromagnetic valve and a temperature sensor, the electromagnetic valve is connected with the radiator in parallel, the temperature sensor is used for detecting the temperature of hydraulic oil of the oil tank and the temperature of hydraulic oil of the transmission system, and the controller adjusts the temperature of hydraulic oil of the oil tank and the temperature of hydraulic oil of the transmission system by controlling the electromagnetic valve and the temperature detection device. The system improves the heat dissipation efficiency of the hydraulic oil, and the hydraulic oil can work in an optimal temperature range.
Description
Technical Field
The utility model relates to a hydraulic control technical field, concretely relates to hydraulic oil cooling system and underground scraper.
Background
The optimal requirement of the hydraulic system of the underground scraper on the hydraulic oil temperature is 50-80 ℃, when the temperature is lower than the range, the viscosity of the oil is increased, the fluidity is reduced, the resistance is increased, the working efficiency is reduced, and particularly when the temperature is lower than 20 ℃, hydraulic motors, valves, pipelines and the like are easily damaged by sharp turning of hydraulic oil. The viscosity of hydraulic oil is reduced when the temperature is higher than 80 ℃, leakage is easy to cause, the efficiency is reduced, the strength of a smooth oil film is reduced, the abrasion of machinery is accelerated, carbide and sludge are generated, and the oil is oxidized to accelerate the deterioration of oil quality.
The conventional independent heat dissipation system of the underground carry scraper comprises a transmission heat dissipation fan and a hydraulic oil heat dissipation fan, which are driven by a gear pump driving motor, and hydraulic oil enters a heat sink after driving the motor, so that the heat dissipation effect is achieved. After the engine is started, the gear pump starts to operate, the motor fan rotates, and the independent heat dissipation system starts to work. The independent radiating system has the advantages that when the oil temperature does not reach the lower limit of the optimal use temperature of the hydraulic oil, the radiating fan of the independent radiating system is in a working state, the hydraulic oil continuously radiates heat through the radiator to influence the temperature rise of the hydraulic oil, the time of the hydraulic oil reaching the optimal oil temperature is prolonged, the efficiency of the hydraulic system is reduced, the abrasion of hydraulic elements is increased, and therefore the service life is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydraulic oil cooling system and underground scraper to the best oil temperature that exists among the solution prior art delays arriving, leads to the problem of system efficiency reduction.
In order to realize the above-mentioned purpose, on the one hand, the utility model provides a hydraulic oil cooling system, including hydraulic pump, oil tank, transmission system, fan and radiator, the hydraulic pump provides power for the fan, the radiator does respectively transmission system with the hydraulic oil work of oil tank, its characterized in that: still include controller, solenoid valve and temperature sensor, the solenoid valve with the radiator is parallelly connected, temperature sensor is used for detecting the hydraulic oil temperature of oil tank reaches transmission system's hydraulic oil temperature, the controller is through control solenoid valve and temperature sensor, adjusts the oil tank with the temperature of transmission system hydraulic oil.
Further, the fan includes fan I and fan II, the radiator includes radiator I and radiator II, the solenoid valve includes solenoid valve I and solenoid valve II, wherein fan I, radiator I and solenoid valve I do the heat dissipation work is done to the temperature of the hydraulic oil of oil tank, fan II, radiator II and solenoid valve II do the heat dissipation work is done to the temperature of transmission system's hydraulic oil.
Further, the temperature sensor comprises a temperature sensor I and a temperature sensor II, wherein the temperature sensor I is used for detecting the temperature of the hydraulic oil in the oil tank, and the temperature sensor II is used for detecting the temperature of the hydraulic oil in the transmission system.
Further, the electromagnetic valve I, the electromagnetic valve II, the temperature sensor I and the temperature sensor II are respectively connected with the controller.
Further, the electromagnetic valve is a two-position two-way electromagnetic valve.
Further, a check valve is arranged between the hydraulic pump and the radiator I.
Further, an overflow valve is provided between the oil tank and the hydraulic pump.
Furthermore, a pressure measuring point is arranged on an oil path between the hydraulic pump and the fan.
The utility model also provides an underground scraper, including the aforesaid a hydraulic oil cooling system.
The utility model has the advantages that: the cooling system to among the prior art can not dispel the heat according to actual oil temperature selectivity to prolong its time that reaches the optimal oil temperature, reduce system efficiency scheduling problem, the utility model has the advantages of it is following: firstly, the optimal heat dissipation scheme can be selected all the time in different temperature intervals according to the real-time temperature of the hydraulic oil, so that the efficiency of entering and maintaining the optimal use temperature of the hydraulic oil is greatly improved; and secondly, the hydraulic oil temperature can be sensitively and timely adjusted when the hydraulic oil temperature is about to exceed the optimal temperature range, so that the hydraulic oil temperature is kept in the optimal temperature range, the electromagnetic valve can not be frequently switched during working, and the existing heat dissipation state can be kept when the oil temperature is in the optimal temperature range.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure, 1-a hydraulic pump, 2-an oil tank, 3-a transmission system, 4-a fan I, 5-a fan II, 6-a radiator I, 7-a radiator II, 8-a controller, 9-an electromagnetic valve I, 10-an electromagnetic valve II, 11-a temperature sensor I, 12-a temperature sensor II, 13-a one-way valve, 14-an overflow valve and 15-a pressure measuring point.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a hydraulic oil cooling system includes a hydraulic pump 1, an oil tank 2, a transmission system 3, a fan and a radiator, the hydraulic pump 1 provides power for the fan, and the radiator is respectively the hydraulic oil work of the transmission system 3 and the oil tank 2, and is characterized in that: the hydraulic oil temperature control system is characterized by further comprising a controller 8, an electromagnetic valve and a temperature sensor, wherein the electromagnetic valve is connected with the radiator in parallel, the temperature sensor is used for detecting the hydraulic oil temperature of the oil tank 2 and the hydraulic oil temperature of the transmission system 3, and the controller 8 adjusts the temperature of the hydraulic oil of the oil tank 2 and the temperature of the hydraulic oil of the transmission system 3 by controlling the electromagnetic valve and the temperature sensor. Specifically, the fan includes a fan I4 and a fan II5, the radiator includes a radiator I6 and a radiator II7, and the solenoid valve includes a solenoid valve I9 and a solenoid valve II10, wherein the fan I4, the radiator I6 and the solenoid valve I9 perform heat dissipation work for the temperature of the hydraulic oil of the oil tank 1, and the fan II5, the radiator II7 and the solenoid valve II10 perform heat dissipation work for the temperature of the hydraulic oil of the transmission system 3. The temperature sensors comprise a temperature sensor I11 and a temperature sensor II12, wherein the temperature sensor I11 is used for detecting the temperature of the hydraulic oil in the oil tank 2, and the temperature sensor II12 is used for detecting the temperature of the hydraulic oil in the transmission system 3. The solenoid valve I9, the solenoid valve II10, the temperature sensor I11 and the temperature sensor II12 are respectively connected with the controller 8. The electromagnetic valve is a two-position two-way electromagnetic valve.
In the system, a hydraulic pump 1, a fan I4 and a fan II5 form a working loop, the hydraulic pump 1, a radiator I6 and an electromagnetic valve I9 form a loop through a one-way valve 11, wherein the radiator I6 and the electromagnetic valve I9 are connected in parallel, so that hydraulic oil in an oil tank 2 can be selected to be radiated by the radiator or directly return to the oil tank 1. The transmission system 3 is a loop, the starting point of the oil path is an oil inlet P, and the oil path returns to the oil return port T through the radiator II7 and the electromagnetic valve II10, wherein the radiator II7 is connected with the electromagnetic valve 10 in parallel, so that the hydraulic oil in the transmission system 3 can be directly returned to the oil return port T without heat dissipation or heat dissipation through the radiator.
Further, a check valve 13 is provided between the hydraulic pump 1 and the radiator I6. An overflow valve 14 is arranged between the oil tank 2 and the hydraulic pump 1 and used for pressure relief of a hydraulic system.
The system is improved according to the prior art, and by configuring the controller 8, the electromagnetic valve and the temperature sensor, hydraulic oil can be regulated and controlled according to the selection of temperature ranges and whether heat dissipation is needed, so that the hydraulic oil can normally work in an optimal temperature area. The problem of work efficiency low because the oil temperature can not be controlled in the prior art is solved.
The following describes the control principle of the hydraulic oil heat dissipation system, which is helpful for understanding the heat dissipation system: setting T as hydraulic oil detection temperature, T0 as transmission system hydraulic oil detection temperature, T1 as hydraulic oil temperature lower limit, T2 as hydraulic oil temperature upper limit, and T3 as alarm/shutdown temperature, wherein the control steps are as follows:
detecting the temperature T of the hydraulic oil, and when the temperature T is less than or equal to T1, de-energizing an I9 coil of the electromagnetic valve, directly returning the hydraulic oil to the oil tank 2, and keeping the oil temperature in a rising trend;
detecting the temperature T of hydraulic oil, and when the temperature T is more than or equal to T2, electrifying an I9 coil of the electromagnetic valve, enabling the hydraulic oil to pass through a radiator, and enabling the oil temperature to start to decrease;
detecting the temperature T of the hydraulic oil, and when T is more than T1 and less than T2, if the coil of the electromagnetic valve I9 is in a power-off state, keeping the current state, and continuously increasing the oil temperature; if the coil of the solenoid valve II10 is in an electrified state, the electrified state is kept, and the oil temperature continues to be reduced;
and detecting the temperature T of the hydraulic oil, and when the T is more than or equal to T3, triggering oil temperature high-temperature alarm and system fault, and controlling the engine to stop by the controller 8.
Detecting the temperature T0 of hydraulic oil of the transmission system, and when the temperature T0 is less than or equal to T1, the coil of the electromagnetic valve II10 loses power, the hydraulic oil directly returns to the oil tank 2, and the oil temperature keeps rising trend;
detecting the temperature T0 of hydraulic oil of the transmission system, and when the temperature T0 is more than or equal to the temperature T2, electrifying a coil of an electromagnetic valve II10, and leading the oil temperature to start to reduce when the hydraulic oil passes through a radiator;
detecting the temperature T0 of hydraulic oil of the transmission system, and when the temperature T1 is more than T0 and more than T2, if the coil of the electromagnetic valve II10 is in a power-off state, keeping the current state, and continuously increasing the oil temperature; if the coil of the electromagnetic valve II10 is in the electrified state, the electrified state is kept, and the oil temperature continues to be reduced;
and detecting the temperature T0 of hydraulic oil of the transmission system, and when the temperature T0 is more than or equal to T3, triggering oil temperature high-temperature alarm, causing system failure, and controlling the engine to stop by the controller 8.
The control principle utilizes the electromagnetic valve and the temperature sensor, fully considers various aspects of the temperature range, enables the hydraulic oil to work in the optimal temperature range, has comprehensive logic design and is convenient to operate.
Additionally, the utility model also discloses an underground scraper, including the aforesaid hydraulic oil cooling system, other parts see prior art.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes that can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art can be made within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a hydraulic oil cooling system, includes hydraulic pump (1), oil tank (2), transmission system (3), fan and radiator, hydraulic pump (1) provides power for the fan, the radiator does respectively transmission system (3) with the hydraulic oil work of oil tank (2), its characterized in that: still include controller (8), solenoid valve and temperature sensor, the solenoid valve with the radiator is parallelly connected, temperature sensor is used for detecting the hydraulic oil temperature of oil tank (2) reaches the hydraulic oil temperature of transmission system (3), controller (8) are through control solenoid valve and temperature sensor, adjust oil tank (2) with the temperature of transmission system (3) hydraulic oil.
2. The hydraulic oil heat dissipation system of claim 1, wherein: the fan includes fan I (4) and fan II (5), the radiator includes radiator I (6) and radiator II (7), the solenoid valve includes solenoid valve I (9) and solenoid valve II (10), wherein fan I (4), radiator I (6) and solenoid valve I (9) do the heat dissipation work is done to the temperature of the hydraulic oil of oil tank (2), fan II (5), radiator II (7) and solenoid valve II (10) do the heat dissipation work is done to the temperature of the hydraulic oil of transmission system (3).
3. The hydraulic oil heat dissipation system of claim 2, wherein: the temperature sensor comprises a temperature sensor I (11) and a temperature sensor II (12), wherein the temperature sensor I (11) is used for detecting the temperature of hydraulic oil in the oil tank (2), and the temperature sensor II (12) is used for detecting the temperature of the hydraulic oil in the transmission system (3).
4. The hydraulic oil heat dissipation system of claim 3, wherein: the electromagnetic valve I (9), the electromagnetic valve II (10), the temperature sensor I (11) and the temperature sensor II (12) are respectively connected with the controller (8).
5. The hydraulic oil heat dissipation system of claim 4, wherein: the electromagnetic valve is a two-position two-way electromagnetic valve.
6. The hydraulic oil heat dissipation system of claim 5, wherein: a one-way valve (13) is arranged between the hydraulic pump (1) and the radiator I (6).
7. The hydraulic oil heat dissipation system of claim 6, wherein: an overflow valve (14) is arranged between the oil tank (2) and the hydraulic pump (1).
8. The hydraulic oil heat dissipation system of claim 7, wherein: and pressure measuring points (15) are arranged on oil paths of the hydraulic pump (1) and the fan.
9. An underground scraper, characterized in that: a hydraulic oil heat dissipation system comprising any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021074792.4U CN212337786U (en) | 2020-06-12 | 2020-06-12 | Hydraulic oil cooling system and underground scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021074792.4U CN212337786U (en) | 2020-06-12 | 2020-06-12 | Hydraulic oil cooling system and underground scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212337786U true CN212337786U (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021074792.4U Active CN212337786U (en) | 2020-06-12 | 2020-06-12 | Hydraulic oil cooling system and underground scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212337786U (en) |
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2020
- 2020-06-12 CN CN202021074792.4U patent/CN212337786U/en active Active
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