JPH0577100U - Lubricant supply system - Google Patents

Abstract

(57) [Summary] [Purpose] Lubricating oil from an oil tank is pumped up by an oil pump with an electric motor, fed into the supply pipes of a plurality of systems included in a manifold block, and is introduced to the intermediate portion of each of the supply pipes. In a lubricating oil supply system adapted to be supplied to a predetermined location via each of the installed flow rate adjusting orifices, the flow rate of the lubricating oil flowing through each of the flow rate adjusting orifices can be easily adjusted. To do. [Composition] A flow rate adjusting plug having a lower hole having a constant inner diameter is provided in an intermediate portion of the supply pipes of the plurality of systems, and the flow rate adjusting plug is provided along the lower hole of each of the flow rate adjusting plugs. An adjusting hole having an inner diameter larger than the inner diameter is bored to a required depth.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lubricating oil supply system, and more specifically, lubricating oil from an oil tank is pumped up by an oil pump with an electric motor and fed into a plurality of system supply pipes included in a manifold block, and an intermediate portion of each of the supply pipes. The present invention relates to a lubricating oil supply system, such as a tester, which supplies a required amount of lubricating oil to a predetermined location via a flow rate adjusting orifice installed in the.

[0002]

[Prior Art]

 FIG. 1 is a diagrammatic basic configuration diagram of a lubricating oil supply system according to the present invention, and FIG. 3 (A) shows a conventional flow rate adjusting orifice at an intermediate portion of a supply pipe included in the lubricating oil supply system of FIG. FIG. 3B is a perspective view of the flow rate adjusting orifice shown in FIG. In FIG. 1, 1 is an oil tank, 2 is an oil pump with an electric motor, 3 is a manifold block, 4 is a supply pipe of a plurality of systems such as seven pipes, and the lubricating oil from the oil tank 1 uses a suction strainer 5. Is pumped up by an oil pump 2 with an electric motor through a line filter 7 and fed into a plurality of system supply pipes 4 included in a manifold block 3, and a part thereof is returned to an oil tank 1 through a relief valve 6. To be done. The lubricating oil sent to the supply pipes 4 is supplied to predetermined locations via, for example, seven flow rate adjusting orifices 8 provided in the intermediate portions of the supply pipes 4, respectively. .

As shown in FIGS. 3 (A) and 3 (B), as the flow rate adjusting orifices 8, the orifice pipes 8 a are inserted in the supply pipes 4 while being fixed to the flanges 8 b. There is. When it is necessary to change the respective flow rates of the supply pipes 4 of the seven systems as shown in FIG. 1, the flow rate adjusting orifices 8 are, for example, two with a flow rate of 1 l / min and 0.8 l / min. Change the length l of the orifice vip 8a with a constant inner diameter d so that there are two with flow rate, two with 0.6 l / min flow rate, and one with 0.4 l / min flow rate. It is a system that tries to obtain the desired flow rate.

[0004]

[Problems to be solved by the device]

 However, in the flow rate adjusting orifice 8 shown in FIGS. 3A and 3B, when changing the length of the orifice pipe 8a, it is necessary to remove the flange 8b with the orifice pipe 8a and adjust the length 1 to be attached. Therefore, there was a problem that the workability of on-site adjustment work was poor.

[0005]

[Means for Solving the Problems]

 According to the present invention, in order to solve the above-mentioned problems, lubricating oil from an oil tank is pumped up by an oil pump with an electric motor and fed into the supply pipes of a plurality of systems included in a manifold block, and each of the supply pipes In the lubricating oil supply system, which is designed to be supplied to predetermined locations via the flow rate adjusting orifices inserted in the middle part, the pilot holes with a constant inner diameter are bored as the respective flow rate adjusting orifices. Flow rate adjusting plugs are inserted, and adjusting holes having an inner diameter larger than the inner diameter of the lower hole are bored along the lower holes of the respective flow rate adjusting plugs to a required depth, whereby the respective system It aims to provide a lubricating oil supply system in which the flow rate of the lubricating oil supplied via the supply pipe can be adjusted.

[0006]

[Action]

 The flow rate adjusting plug included in the lubricating oil supply system according to the present invention is such that an adjusting hole having an inner diameter larger than the inner diameter of the lower hole is bored along the lower hole having a constant inner diameter to a required depth. By adjusting the depth, it is possible to adjust the flow rate of the lubricating oil supplied via the respective supply pipes of the multiple systems.

[0007]

【Example】

 An embodiment of a lubricating oil supply system in a tester or the like according to the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a diagrammatic basic configuration diagram of a lubricating oil supply system according to the present invention, and FIG. 2A shows a flow rate according to the present invention as a flow rate adjusting orifice at an intermediate portion of a supply pipe included in the lubricating oil supply system of FIG. FIG. 2 (B) is a sectional side view showing the pilot hole and the adjusting hole of the flow rate adjusting plug of FIG. 2 (A), in which the adjusting plug is interposed. The basic configuration of the lubricating oil supply system in the tester shown in FIG. 1 is the same as the basic configuration of the conventional lubricating oil supply system described with reference to FIG. 1, where 1 is an oil tank and 2 is an electric motor. An oil pump with an attachment 3 is a manifold block, and 4 is a supply pipe for a plurality of systems, for example, seven, and lubricating oil from the oil tank 1 is pumped up by an oil pump with an electric motor 2 through a suction strainer 5, and a line filter is provided. It is sent to the supply pipes 4 of a plurality of systems included in the manifold block 3 via 7, and a part is returned to the oil tank 1 via the relief valve 6. The lubricating oil sent to the supply pipes 4 is supplied to predetermined locations via, for example, seven flow rate adjusting orifices 8 provided in the intermediate portions of the supply pipes 4, respectively. ..

In the lubricating oil supply system according to the present invention, in the basic configuration shown in FIG. 1, a flow rate adjusting orifice 8 is provided at an intermediate portion of each supply pipe 4, for example, a PT1 / 8 having a length of 10 mm. A flow rate adjusting plug 8c is provided. Further, the flow rate adjusting plug 8c is provided with a pilot hole 8d having a desired diameter of, for example, 0.5 to 1 mmφ, and an inner diameter larger than the inner diameter of the pilot hole is formed along the pilot hole 8d. An adjusting hole having a diameter of 1 to 2 mm is bored by a required depth L so that the flow rate of the lubricating oil passing through the supply pipe 4 can be adjusted.

[0009]

[Effect of the device]

 Since the lubricating oil supply system according to the present invention is configured as described above, for example, the flow rate of the lubricating oil supplied via the plurality of supply pipes of seven systems can be adjusted by adjusting the adjustment holes of the flow rate adjusting plug. By adjusting the depth of the oil, it becomes possible to easily adjust the flow rate of the lubricating oil flowing through the supply pipe of each system.

[Brief description of drawings]

FIG. 1 is a diagrammatic basic configuration diagram of a lubricating oil supply system according to the present invention.

2 (A) is a partial cross-sectional side view showing a state in which an embodiment of a flow rate adjusting plug according to the present invention is inserted in an intermediate portion of a supply pipe included in the lubricating oil supply system of FIG. 1, (B). FIG. 7A is a sectional side view showing a pilot hole and an adjusting hole of the flow rate adjusting plug of FIG.

3A is a partial cross-sectional side view showing a state in which a conventional flow rate adjusting orifice is provided in an intermediate portion of a supply pipe included in the lubricating oil supply system of FIG. 1, and FIG. 3 is a perspective view of the flow rate adjusting orifice of FIG.

[Explanation of symbols]

 1 Oil tank 2 Oil pump with electric motor 3 Manifold block 4 Supply pipe 5 Suction strainer 6 Relief valve 7 Line filter 8 Flow rate adjusting orifice 8c Flow rate adjusting plug 8d Lower hole 8e Adjustment hole

Claims (1)

[Scope of utility model registration request] 1. A flow rate in which lubricating oil from an oil tank is pumped up by an oil pump with an electric motor, fed into supply pipes of a plurality of systems included in a manifold block, and interposed in an intermediate portion of each of the supply pipes. In a lubricating oil supply system which is adapted to be supplied to predetermined locations via adjustment orifices, flow adjustment plugs having a fixed inner diameter bore are provided as the flow adjustment orifices. The lubricating oil supply system is characterized in that adjustment holes each having an inner diameter larger than the inner diameter of the pilot hole are bored along the pilot holes of the respective flow rate adjusting plugs to a required depth.