JPS60121393A - Lubricating apparatus for transfer car - Google Patents

Abstract

PURPOSE:To shorten the warming operation time in coldness by alowing oil circulation by switching into a heating circuit when the temperature is low and into a cooling circuit when the temperature is high by a sensor for detecting the temperature of the oil. CONSTITUTION:A sensor 6 detects the temperature of the lubricating oil in a transmission case 1 of a transfer car, and if the temperature is low, oil circulation is switched into a heating circuit 5, and the oil is heated during the time when the oil passes through the warm water in a radiator 4 or in the pipe arranged on the outer peripheral part of an exhaust pipe. When the oil temperature rises, the temperature is detected by the sensor, and oil circulation is swithed into a cooling circuit 3, and the oil is cooled during the time when the oil passes through an oil cooler 2. Therefore, even in cold time, the temperature rise can be obtained speedily, and the warming operation time can be shortened.

Description

[Detailed description of the invention] The present invention relates to a lubricating device for a mobile vehicle.

That is, in cold weather, the temperature of the lubricating oil in the transmission case is low, requiring a long warm-up operation, but it is desirable to shorten this warm-up time as much as possible.

To this end, the present invention takes the following technical measures.

That is, the oil that lubricates the traveling transmission mechanism inside the mission case (1) is transferred to the oil cooler (2) that cools this oil.
), and a lubricating oil circuit that circulates through a part of the engine's cooling water radiator (4) or a heating circuit (5) that runs along the outer circumference of the engine's exhaust pipe. A sensor (6) that detects the temperature sends the signal to the heating circuit (5) when the temperature is low, and to the cooling circuit (3) when the temperature is between room temperature and high temperature.
) The lubricating device has a configuration in which the lubricant is switched so as to circulate to

With this configuration, the present invention has the following technical effects. That is, the mission case (1) of the moving vehicle.
The sensor (6) detects the temperature of the lubricating oil inside the
When the temperature is low, the oil circulation is switched to the heating circuit (5), and the oil is heated while passing through the hot water of the radiator (4) or inside the piping installed on the outer periphery of the engine exhaust pipe, and the oil temperature rises. The oil temperature is detected by the sensor (6) and the oil circulation is switched to the cooling circuit (3) to the oil cooler (2).
The temperature of the lubricating oil is low during cold weather, so it is circulated in the hot water of the radiator (4), where the temperature rises quickly, or in the piping around the outer circumference of the engine's exhaust pipe. It is possible to quickly raise the oil temperature and shorten the warm-up time.

In the illustrated example, the lubricating oil circulation circuit includes a heating circuit (5) that passes from the transmission case (1) of the moving vehicle through the radiator (4) of the engine (12) and the radiator (
4) constitutes a cooling circuit (3) that passes through an oil cooler (2) disposed in front of the oil cooler (2).

Further, a configuration may be adopted in which a hydraulic cylinder or the like is attached to this circulation circuit. A sensor (6) for detecting oil temperature is provided in the transmission case (1), and a gear pump (7) and a switching valve (8) are provided in the circulation circuit. Heating circuit (
5) is located inside the upper end of the radiator (4),
This may be provided on the outer periphery of the exhaust pipe of the engine (12). The oil cooler (2) has a structure in which cooling fins (lO) are made of a large number of thin plates connected at small intervals, and pipes are passed through them.The oil cooler (2) is made up of cooling fins (lO) made up of a number of thin plates connected at small intervals, with pipes passing through them, and is placed close to the front of the radiator (4). ) to form a cooling circuit (3). (13) (14) are check valves, (+5) (+8) are relief valves, (17) are hydraulic cylinders (18) are control valves.

The gear pump (7) is driven by the engine (12) to flow the lubricating oil in the transmission case (1) into the circulation circuit, and the switching valve (8) provided in the circuit is switched by the operation of the solenoid (9). By changing the flow path, oil is circulated between the heating circuit (5) and the cooling circuit (3). Therefore, when the oil temperature detection sensor (6) detects the oil temperature and the oil temperature is low, the switching valve (8) is switched to the heating circuit (5), and the oil is heated while passing through the piping in the hot water of the radiator (4). When the temperature is high, the switching valve (8) is switched to the cooling circuit (3) and the oil is cooled while passing through the oil cooler (2).

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view of the main part, FIG. 2 is a side view of the main part, and FIG. 3 is a circuit diagram. In the figure, (1) is the transmission case, (2) is the oil cooler, (3) is the cooling circuit, (4) is the radiator, (5)
indicates a heating circuit, and (6) indicates a sensor. Patent Applicant Name Isekibeki Co., Ltd. Representative Masataka Benma Figure 1

Claims (1)

[Claims] A cooling circuit (3) passes through an oil cooler (2) that cools the oil that lubricates the traveling transmission mechanism in the transmission case (1), and a radiator (
4) or a heating circuit (5) passing through the outer periphery of the exhaust pipe of the engine, a sensor (6) detecting the temperature of the oil detects the temperature of the lubricating oil. ), and a cooling circuit (3) when the temperature is between room temperature and high temperature.