JP2007245789A - Gear oil changing method of propulsive machinery and its gear oil change tool set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gear oil changing method of a propulsive machine capable of speedily changing oil without landing the propulsive machine. <P>SOLUTION: This gear oil changing method of the propulsive machinery 1 mounted on a boat B and to flow new gear oil 4 into the propulsive machine 1 by discharging old gear oil from the propulsive machine 1 free to change over to a tilted-up state and a tilted-down state is to change the gear oil of the propulsive machine 1 to select and mount a first plug P1, a second plug P2, a first adapter A1 and a second adapter A2 on a first oil port L1 and a second oil port L2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a method for changing gear oil of a propulsion device provided in various boats.
More specifically, the present invention relates to a gear oil replacement method for a propulsion device for easily and quickly changing gear oil on a water surface.

Conventionally, when exchanging gear oil of a propulsion device such as an outboard motor or an outboard motor, it is usually necessary to land the boat from the water surface in order to perform the propulsion device in a vertical state.
That is, the upper plug screwed to the propulsion unit and the lower plug similarly screwed to the second oil port are removed, and the used gear oil is discharged from the first oil port.

In this case, since the gear oil is highly viscous, it takes much time to discharge, particularly in winter when the temperature is low, and the efficiency is poor.
When all of the gear oil in the propulsion device is discharged, the mouth portion is pressed against the first oil port using a telescopic container filled with gear oil.
Next, by strongly compressing the container, the gear oil is pushed out and filled into the propulsion device.

At the time of filling, there is a defect that bubbles and the like are mixed in the gear oil.
In addition, landing a boat is a large and time-consuming work for a boat user, and it is expensive to request a specialized worker.

Therefore, there has been a demand for a method that can change gear oil without landing.
In the conventional gear oil replacement method of the propulsion unit, the old gear oil is removed from the propulsion unit using gravity, and then the new gear oil is filled into the propulsion unit. However, since the viscosity of the gear oil is high, the propulsion unit is filled. However, it is not efficient because it takes a long time.
JP-A-5-278687

The present invention has been made to solve the above-described problems.
That is, an object of the present invention is to provide a gear oil changing method for a propulsion device that can change oil quickly without landing.

  Thus, as a result of earnest research on the background of such problems, the present inventor operates the suction pump attached to the upper oil port side of the oil ports formed at two locations, The present inventors have found that the above-mentioned problems can be solved by allowing gear oil to flow into the propulsion device from the oil port, and the present invention has been completed based on this finding.

  That is, the present invention is (1) a gear oil for a propulsion unit that is attached to a boat and discharges old gear oil from a propulsion unit that can be switched between a tilted-up state and a tilted-down state, In the replacement method, the step of discharging the old gear oil in the propulsion device is formed with a first oil port formed at a lower portion of the propulsion device and a position above the first oil port in a tilted-up state. A step of connecting the first hose and the second hose to the second oil port, a step of attaching a suction pump to the other end of the first hose, and the suction pump in a state where the propulsion device is tilted down. And sucking out the old gear oil of the propulsion device and discharging it to the outside through the first hose, and a new gear in the propulsion device. The step of injecting oil includes the step of changing the attachment location of the suction pump from the other end of the first hose to the other end of the second hose after the discharging step, and the step of removing the suction pump from the first hose. Attaching the oil filling container containing the new gear oil to the other end, operating the suction pump attached to the second hose, and using the suction force of the suction pump to propel the oil filling container The new gear oil is introduced into the machine through the first hose and filled with a predetermined amount of gear oil. After that, that is, when the new gear oil is introduced into the second hose, the operation of the suction pump is terminated. And in the state where the propulsion device is tilted up, the first hose and the second hose are connected to the first oil port and the second oil hose, respectively. It resides in gear oil replacement method of propulsion machine having a step of removing from the Le port, a.

    Further, according to the present invention, (2) in a normal use state of the propulsion device, the first oil port is provided with a first plug, the second oil port is provided with a second plug, When attaching the first hose and the second hose to the propulsion unit, the first plug and the second plug are removed from the propulsion unit, and an opening / closing valve is provided instead of the first plug and the second plug. The gear oil replacement method for a propulsion device according to the above (1), wherein the first adapter and the second adapter are respectively attached to the first oil port and the second oil port.

    The present invention also resides in (3) the gear oil replacement method for a propulsion unit according to the above (1), wherein at least the second hose can visually confirm the gear oil.

    Moreover, this invention exists in the gear oil replacement | exchange method of the propulsion apparatus of said (3) description whose said (4) and said 2nd hose are transparent.

    The present invention also resides in (5) the gear oil replacement method for a propulsion device according to (1), wherein the propulsion device is an outboard motor or an inboard / outboard motor.

    Moreover, this invention consists of the said suction pump, said 1st hose, said 2nd hose, said 1st adapter, and said 2nd adapter used for the gear oil replacement | exchange method of the propulsion apparatus as described in (6) and said (3). It exists in the gear oil changer set.

  In addition, as long as the objective of this invention is met, the structure which combined the said invention suitably is also employable.

  According to the gear oil replacement method for a propulsion device of the present invention, first, in a tilted state, a first oil port formed at a lower portion of the propulsion device, and a second oil port formed above the first oil port, The steps of attaching the first hose and the second hose, attaching the suction pump to the other end of the first hose, and operating the suction pump in a state where the propulsion device is tilted down to suck the gear oil of the propulsion device. The first oil port formed at the bottom of the propulsion unit and the second oil formed above the first oil port in a state where the propulsion unit is tilted up and the step of discharging to the outside through the first hose Connecting the first hose and the second hose to the mouth, attaching the suction pump to the other end of the first hose, and operating the suction pump in a state where the propulsion device is tilted down. A step of discharging to the outside through the first hose to suck the gear oil of the machine to discharge the gear oil performed.

  Next, a step of changing the attachment location of the suction pump from the other end of the first hose to the other end of the second hose, and an oil filling container containing new gear oil is attached to the other end of the first hose from which the suction pump has been removed. With the process and the propulsion unit tilted down, the suction pump attached to the second hose is operated, and the suction power of the suction pump is used to allow new gear oil to flow from the oil filling container to the propulsion unit. The process of terminating the operation of the suction pump when new gear oil flows into the cylinder and the process of removing the first hose and the second hose from the first oil port and the second oil port while the propulsion device is tilted up And make new gear oil flow into the propulsion unit.

  In this way, since gear oil is supplied from the first oil port below the second oil port by suction from the second oil port side above the first oil port, smooth and quick propulsion even with high viscosity gear oil The machine can be filled and the oil can be changed quickly.

Further, when the specified amount of gear oil is filled in the propulsion device, new gear oil flows into the second hose from the second oil port, so that it is possible to accurately grasp the operation stop timing of the suction pump.
Therefore, the gear oil filling operation can be completed in the shortest time for operating the suction pump.
Moreover, since no landing is required as in the prior art, time and cost are greatly saved.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 shows a propulsion unit to which the gear oil replacement method for a propulsion unit of the present invention is applied.
The propulsion device 1 of this embodiment is attached to the rear end of a boat and is used as an outboard motor.
The propeller unit 2 below the propulsion unit 1 is usually immersed in water, and the propeller unit 2 is driven by an internal combustion engine (not shown) provided above the propulsion unit 1.

That is, the movement of the piston in the internal combustion engine is changed to a rotational movement, and power is transmitted to the propeller unit 2 via the bevel gear 3.
The fuel of the internal combustion engine is supplied from the fuel tank T loaded on the deck of the boat B to the propulsion device 1 through the fuel pipe.
By the way, the bevel gear 3 for transmitting power from the internal combustion engine to the propeller unit 2 is immersed in gear oil 4 filled in the propulsion device.
The gear oil 4 reduces the frictional force between the bevel gears and ensures smooth rotation of the propeller unit 2.
However, when the propulsion unit 1 is used for a certain period of time, dirt or bubbles are mixed into the gear oil, or the gear oil itself is deteriorated, so that the performance of the propulsion unit 1 is not adversely affected. It is necessary to replace with new gear oil (new gear oil).

Next, an embodiment of a gear oil replacement method for a propulsion device according to the present invention will be described.
FIG. 2 shows the procedure of the gear oil changing method, and FIG. 3 is a schematic diagram for supplementing the explanation of this procedure.
FIG. 3A shows a normal use state in which the propulsion device 1 attached to the rear end of the boat B is tilted down.
In this state, the propeller unit 2 is rotated by the operation of the propulsion unit 1, and the boat B can be advanced by the propulsive force.

In order to change the gear oil, first, in step S1, the propulsion device 1 is rotated upward and tilted up as shown in FIG. 3 (b).
Next, in step S2, as shown in FIG. 3C, the first plug P1 screwed to the first oil port L1 is removed using a tool or the like.
Similarly, the second plug P2 screwed to the second oil port L2 formed above the first oil port L1 is removed.

Next, in step S3, a first adapter A1 with an on-off valve, which will be described later, and a second adapter A2 are screwed and attached to the first oil port L1 and the second oil port L2 (FIGS. 3D and 4). (See (a)).
Here, first, the configuration and function of the second adapter A2 will be described with reference to FIG.
The second adapter A2 shown in the figure has a hexagonal long nut portion 11 and a hexagonal short nut portion 12 having a diameter smaller than that of the hexagonal long nut portion 11.

A thin cylindrical portion 11a is formed on the distal end side of the hexagonal long nut portion 11, and a small-diameter screw portion 11b is further formed on the distal end of the thin cylindrical portion 11a.
A rubber O-ring 13 is fitted into the screw portion 11b.
When the O-ring 13 is attached by screwing the second adapter A2 to the propulsion unit 1, the gear oil in the propulsion unit 1 does not leak to the outside or water does not enter the propulsion unit 1. Demonstrate oil-proof function or waterproof function.

A screw portion 11 c is also formed on the rear end side of the hexagonal long nut portion 11.
And the hexagonal short nut part 12 is connected with this screw part 11c by screw connection.

The hexagonal short nut portion 12 has a nut portion 12a and a cylindrical portion 12b having a diameter smaller than that of the nut portion 12a.
A resin hose connection member 14 is connected to the end of the cylindrical portion 12b.
The hose connecting member 14 is provided with an engaging groove so as to be engaged with a resin hose accurately, for example.

Next, the configuration and function of the first adapter A1 will be described with reference to FIG.
The first adapter A1 is different from the second adapter A2 in that a valve portion 15 is provided.

The valve portion 15 is provided between the hexagonal long nut portion 11 and the hexagonal short nut portion 12 having a diameter smaller than that of the hexagonal long nut portion 11.
The valve in the valve unit 15 is opened and closed by rotating the lever 15a.
In addition to the lever-type valve, a handle-type valve or a knob-type valve may be used.
A flow path A1a is formed in the first adapter A1.

Next, in step S4, the first hose H1 made of flexible transparent resin is attached to the hose connecting member 14 of the first adapter A1 in the first oil port L1, and the second hose H2 is also connected to the second oil port L2. It attaches to the hose connection member 14 of a certain 2nd adapter A2 (refer FIG.4 (b)).
Of course, the first hose H1 and the second hose H2 are respectively attached to the first adapter A1 and the second adapter A2, and then the first adapter A1 and the second adapter A2 are respectively connected to the first oil port L1 and the second one. It may be attached to the second oil port L2.

Next, in step S5, the suction pump 5 is attached to the other end of the first hose H1 (see FIG. 4C).
Here, the other end of the second hose H2 is opened to the atmosphere as will be described later.
As the suction pump, a pump that manually lifts and lowers the piston in the cylinder, for example, a manual bicycle pump type is preferably used.
More preferably, a suction pump 5 as shown in FIG. 10 can be used.

The suction pump 5 has a spherical plastic container portion 51, and a cylinder portion 52 is provided at the upper end thereof.
A piston 53 is slidably provided in the cylinder portion 52.
At the upper end of the piston 53, a T-shaped gripping portion 54 for manually raising and lowering the piston 53 is provided.
Above the plastic container part 51, a cylinder part 51a for gear oil suction is formed.
A cap 55 is fitted into the cylindrical portion 51a, and a central protrusion 55a to which the first hose H1 can be attached is formed on the cap 55.

In the case of an electric pump, there is a risk of malfunction due to seawater or the like, and periodic maintenance is required. However, if it is a manual type, it has a simple configuration and does not require maintenance.
If the suction pump 5 is made of all resin, it is lightweight and convenient to carry.
Here, the lever 15a (described in FIG. 9) of the first adapter A1 is set in an open state (open state).

Next, in step S6, the propulsion unit 1 is tilted down (see FIG. 4D), and the propeller unit 2 is put in water.
In this case, as described above, since the flexible resin is applied to the material of the first and second hoses H1 and H2, tilt-down can be performed smoothly.

Next, in step S7, the suction pump 5 is operated, specifically, the grip portion 54 of the suction pump 5 is manually raised and lowered, and the old gear oil in the propulsion unit 1 is sucked to the suction pump 5 side by negative pressure, and the propulsion unit Drain the old gear oil from 1.
The discharged old gear oil is collected in the suction pump 5 through the first hose H1 (see FIG. 5A).
In this process, the other end of the second hose H2 is opened to the atmosphere so that the propulsion device 1 does not become a negative pressure, and the gear oil is smoothly discharged.

Next, in step S8, the suction pump 5 is changed from the other end of the first hose H1 to the other end of the second hose H2 (see FIG. 5B).
In step S9, an oil filling container 6 containing new gear oil is attached to the other end of the first hose H1 from which the suction pump 5 has been removed (see FIG. 5B).

Next, in step S10, new gear oil is supplied from the oil filling container 6 into the propulsion device (see FIG. 6A).
At this time, the old gear oil has already been discharged into the propulsion unit to become a space, and the suction pump 5 is operated to make the propulsion unit 1 have a negative pressure by using the suction force of the suction pump 5. 6 allows new gear oil to flow into the propulsion device 1 easily and smoothly.

Since gear oil has high viscosity and poor flow, the supply speed is extremely slow even if only gravity is used (conventional), but the supply speed is greatly improved because the suction force can be used.
Then, when the gear oil is filled by a specified amount, the operation of the suction pump 5 is terminated.
Here, as described above, the second hose H2 is made of a transparent resin, so that it becomes easy for new gear oil to flow into the second hose H2 after the space in the propulsion device is full. It can be confirmed visually.

Next, in step S11, the propulsion device 1 is tilted up (see FIG. 6B).
Then, the valve portion 15 of the first adapter A1 is closed.
Next, in step S12, the first hose H1 and the second hose H2 are removed from the first adapter A1 having the first oil port L1 and the second adapter A2 having the second oil port L2, respectively (FIG. 6 (c). )reference).
In the drawing, the first hose H1 and the second hose H2 are shown to be in water, but are preferably in the atmosphere.

Next, in step S13, the first and second adapters A1 and A2 are removed from the propulsion device 1 (see FIG. 6D).
Of course, after removing the first and second adapters A1 and A2 from the propulsion device 1, the first hose H1 and the second hose H2 may be detached from the first adapter A1 and the second adapter A2, respectively.

Next, in step S14, the first plug P1 and the second plug P2 are attached back to the first oil port L1 and the second oil port L2, respectively (see FIG. 7A).
Finally, in step S15, the propulsion device 1 is tilted down (see FIG. 7B), and the suction pump 5 in which the old gear oil is accommodated and the oil filling container 6 that has been emptied are cleaned up to perform the oil change operation. finish.

  In addition, when attaching and removing the first and second plugs P1, P2 and the first and second adapters A1, A2 described above, a tray is provided below the propulsion unit 1 so that the tools and parts are deeply immersed in the water. It is better not to fall.

According to the above-described embodiment, the gear oil is supplied from the first oil port L1 below the second oil port L2 by being sucked from the second oil port L2 side above the first oil port L1, so that the viscosity is high. Even with gear oil, the propulsion device 1 can be filled smoothly and quickly, and oil can be changed quickly.
Further, even when bubbles or the like are mixed during filling, air is not included in the propulsion unit in order to escape from the upper second oil port L2.

In addition, after the specified amount of gear oil is filled in the propulsion unit, the gear oil instantaneously reaches from the second oil port L2 to the transparent second hose H2 connected to the propulsion device. It is possible to accurately grasp when the operation of the pump 5 is stopped.
Therefore, the suction pump 5 is not operated unnecessarily for a time longer than necessary, and the gear oil filling operation can be completed in the shortest time.

Further, according to the above-described embodiment, if there is a suction pump 5, a first hose H1, a second hose H2, a first adapter A1, and a second adapter A2 as gear oil replacement members, the gear oil can be replaced. Therefore, the gear oil can be changed easily and inexpensively.
By making the suction pump 5, the first hose H1, the second hose H2, the first adapter A1 and the second adapter A2 as a set to be a gear oil changer set, it becomes extremely easy to change the gear oil.

Although the present invention has been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the essence thereof.
For example, in the above-described embodiment, the propulsion device 1 used as an outboard motor has been described. However, the gear oil replacement method for a propulsion device of the present invention may be used for an inboard / outboard motor.

In the above-described embodiment, the gear oil is changed using various processes, but the order of these processes can be changed as appropriate.
For example, instead of attaching the suction pump 5 to the other end of the first hose H1 after attaching the first hose H1 to the first adapter A1, the first hose H1 is attached after attaching the suction pump 5 to one end of the first hose H1. May be attached to the first adapter A1.
In addition, the second hose H2 is preferably transparent, but in short, it may be translucent as long as it can be visually observed that the gear oil leaks from the second oil port L2 after a predetermined amount of gear oil is filled in the propulsion unit. Good.

FIG. 1 is an explanatory view showing a propulsion unit used in the gear oil replacement method for the propulsion unit of the present invention. FIG. 2 is a flowchart showing a procedure of a gear oil replacement method for the propulsion device. FIG. 3 is a schematic diagram showing the procedure of the gear oil replacement method of the propulsion device, where (a) shows a normal use state and the propulsion device is tilted down, and (b) shows the propulsion device rotating upward. (C) shows a state where the first and second plugs are removed, and (d) shows a state when the first and second adapters are attached. FIG. 4 is a schematic diagram showing the procedure of the gear oil changing method of the propulsion device, where (a) shows a state where the first and second adapters are attached, and (b) shows the first adapter and the second adapter, respectively. The state at the time of attaching a 1st hose and a 2nd hose is shown, (c) shows the state where a suction pump was attached to one end of the 1st hose, (d) turned the propulsion unit downward and tilted down Indicates the state. FIG. 5 is a schematic diagram showing the procedure of the gear oil replacement method for the propulsion unit, where (a) shows a state in which the suction pump is operated and the gear oil in the propulsion unit is sucked into the suction pump, and (b) The state which attached the oil filling container to the other end of 1 hose is shown. FIG. 6 is a schematic diagram showing the procedure of the gear oil changing method of the propulsion device, (a) shows a state in which the new gear oil is filled in the propulsion device, and (b) shows a tilt by rotating the propulsion device upward. (C) shows the state which removed the 1st and 2nd hose, (d) shows the state which removed the 1st and 2nd adapter. FIG. 7 is a schematic diagram showing the procedure of the gear oil changing method of the propulsion device, where (a) shows a state when the first and second plugs are attached to the first and second oil ports, and (b) shows the propulsion. The machine is turned downward and tilted down. FIG. 8 is an explanatory diagram showing details of the second adapter. FIG. 9 is an explanatory diagram showing details of the first adapter. FIG. 10 is an explanatory diagram showing details of the suction pump.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Propulsion machine 2 ... Propeller part 3 ... Bevel gear 4 ... Gear oil 5 ... Suction pump 51 ... Plastic container part 51a ... Cylindrical part 52 ... Cylinder part 53 ... Piston 54 ... Grasping part 55 ... Cap 55a ... Center protrusion part 6 ... Oil Filling container 11 ... Hex long nut portion 11a ... Thin tube portion 11b ... Screw portion 11c ... Screw portion 12 ... Hex short nut portion 12a ... Nut portion 12b ... Tube portion 13 ... O-ring 14 ... Hose connecting member 15 ... Valve portion 15a ... Lever A1 ... first adapter A1a ... flow path A2 ... second adapter A2a ... flow path B ... boat H1 ... first hose H2 ... second hose L1 ... first oil port L2 ... second oil port P1 ... first plug P2 ... Second plug T ... Fuel tank W ... Water

Claims (6)

A method for exchanging old gear oil from a propulsion device attached to a boat, which can be switched between a tilted-up state and a tilted-down state, and causing the new gear oil to flow into the propulsion device,
The step of discharging the old gear oil in the propulsion device,
In the tilted-up state, the first hose and the second hose are connected to the first oil port formed in the lower portion of the propulsion unit and the second oil port formed above the first oil port, respectively. And a process of
Attaching a suction pump to the other end of the first hose;
Activating the suction pump in a state where the propulsion device is tilted down, sucking the old gear oil of the propulsion device and discharging it to the outside through the first hose;
Have
The step of flowing new gear oil into the propulsion unit includes:
After the discharging step, the step of changing the attachment location of the suction pump from the other end of the first hose to the other end of the second hose;
Attaching an oil filling container containing the new gear oil to the other end of the first hose from which the suction pump has been removed;
The suction pump attached to the second hose is operated, and the new gear oil is allowed to flow from the oil filling container to the propulsion device through the first hose using the suction force of the suction pump. Filling the gear oil and then terminating the operation of the suction pump when the new gear oil flows into the second hose;
In the state where the propulsion device is tilted up, the step of removing the first hose and the second hose from the first oil port and the second oil port, respectively.
Having
A method for changing gear oil in a propulsion device. In the normal use state of the propulsion device,
The first oil port is provided with a first plug,
The second oil port is provided with a second plug,
When attaching the first hose and the second hose to the propulsion device, remove the first plug and the second plug from the propulsion device,
The first adapter and the second adapter with an on-off valve are attached to the first oil port and the second oil port, respectively, instead of the first plug and the second plug. The method for changing the gear oil of the propulsion device according to 1.   The method for changing the gear oil of a propulsion device according to claim 1, wherein at least the second hose can visually check the gear oil.   4. The method for replacing gear oil in a propulsion unit according to claim 3, wherein the second hose is transparent.   The method of claim 1, wherein the propulsion device is an outboard motor or an inboard / outboard motor.   A gear oil changer set comprising the suction pump, the first hose, the second hose, the first adapter, and the second adapter used in the gear oil replacement method for a propulsion device according to claim 3.

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