JP2001072199A - Torque converter oil replacing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a work time in an apparatus performing the replacement of oil by inserting a nozzle in the oil gauge hole of a torque converter and to prevent the mixing of air into the torque converter to the utmost. SOLUTION: A nozzle member 10 is constituted as a double pipe wherein an inner pipe member 10B having a small diameter is provided in an outer pipe member 10A having a diameter smaller than that of an oil gauge hole 2 and forming the outer diameter of the nozzle member 10 so as to be capable of inserting the nozzle member in the oil gauge hole 2. The inner pipe member 10B is connected to a discharge pipe 14 and set as a discharge pipeline for sucking and discharging waste oil by a discharge pump 16 and the outer pipe member 10A is connected to a supply pipe 13 and set as a supply pipeline for supplying fresh oil under pressure by a supply pump 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a torque converter oil changing device for changing torque converter oil of a torque converter used in an automatic transmission of an automobile or the like from old oil to new oil.

[0002]

2. Description of the Related Art Conventionally, since torque converter oil of a torque converter deteriorates and becomes polluted when used for a long period of time, oil exchange for replacing old oil with new oil is generally performed after a certain period of time.

[0003] Since this oil exchange is a device such as a torque converter, it is necessary to prevent the entry of air or the like. Therefore, the operation is performed by inserting a nozzle member into an oil gauge hole of an oil pan separately provided. (See JP-A-64-45293).

[0004]

By the way, in order to perform oil change, two work steps are required, that is, a work of extracting old oil and a work of supplying new oil. But,
When the oil is changed by inserting the nozzle member into the oil gauge hole, the old oil must be extracted and the new oil supplied by one nozzle member. It was necessary to alternately perform the sampling operation and the new oil supply operation at staggered times.

However, if the extracting operation and the supplying operation are performed alternately as described above, there is a problem that the operation time is greatly increased, and the inside of the oil pan becomes empty between the extracting operation and the supplying operation, so that air is generated. As a result, there is a problem that air is accidentally mixed into the torque converter.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and in a case where a nozzle is inserted into an oil gauge hole of a torque converter to perform oil change, the working time is reduced and the torque converter is reduced. It is an object of the present invention to provide an oil change device that prevents entry of air into the inside as much as possible.

[0007]

To solve the above problems, the present invention is configured as follows. According to a first aspect of the present invention, there is provided a torque converter oil exchange device for replacing torque converter oil in a torque converter, a supply path for supplying pressurized new oil into the torque converter, and a discharge path for sucking and discharging old oil in the torque converter. The supply path and the discharge path are independently formed in a nozzle member inserted into an oil gauge hole of the torque converter.

According to a second aspect of the present invention, in the torque converter oil changing apparatus according to the first aspect, the nozzle member has a double-layer structure of a double pipe or a parallel pipe, and one of the nozzle pipes is connected to a supply path. , And the other is set as a discharge pipeline connected to the discharge route.

According to a third aspect of the present invention, there is provided the torque converter oil exchange device according to the first aspect, wherein filter means for filtering used oil discharged from the torque converter is provided, and the used oil filtered by the filter means is reused. A recycling route is provided to guide the used oil discharged by the discharge route to the supply route so as to be used.

According to a fourth aspect of the present invention, in the torque converter oil changing apparatus according to the second aspect, when the nozzle member is inserted into the oil gauge hole, the tip of the discharge pipe is lower than the tip of the supply pipe. It is set to be located.

According to a fifth aspect of the present invention, there is provided the torque converter oil changing apparatus according to the second aspect, further comprising a relative movement displacement means for relatively moving the supply pipe and the discharge pipe of the nozzle member in the axial direction. Things.

[0012]

According to the first aspect of the present invention, the supply oil and the discharge oil are discharged independently by forming the supply path and the discharge path independently on the nozzle member inserted into the oil gauge hole of the torque converter. The discharge operation to perform the oil supply operation and the supply operation to supply the new oil can be performed at the same time, so that the operation time for oil change can be reduced. Further, since the inside of the oil pan does not become empty, it is possible to prevent the air from being accidentally mixed into the torque converter.

[0013] According to the oil changing device of the second aspect,
The nozzle member is configured as a two-layer structure of a double pipe or a parallel pipe, and one is set as a supply pipe connected from the supply path and the other is set as a discharge pipe connected from the discharge path, so that the nozzle member is connected to the oil gauge hole. At the time of insertion, since the nozzle member, which is one in appearance, has a two-layer structure, the operation of discharging old oil and the operation of supplying new oil can be performed simultaneously while performing insertion easily.

According to the third aspect of the present invention, there is provided an oil changing device.
In order to reuse the old oil filtered by the filter means, a recycling path for guiding the old oil discharged by the discharge path to the supply path is provided, so that the polluted old oil is filtered and recycled to the torque converter again as regenerated oil. Since it can be supplied, it is possible to use the torque converter oil for a long time.

According to the fourth aspect of the present invention, there is provided an oil changing device.
When the nozzle member is inserted into the oil gauge hole, the tip of the discharge pipe is set lower than the tip of the supply pipe, so that new oil and old oil of torque converter oil are discharged simultaneously inside the oil pan. At the time of supply, since the discharge and supply locations of the new oil and the old oil are shifted in the vertical direction, it is possible to eliminate the fear that the supplied new oil is immediately discharged.

Further, by positioning the tip of the discharge pipe downward, the most polluted old oil mixed with impurities and the like precipitated in the oil pan can be immediately discharged, so that the oil exchange can be efficiently performed. Can be performed.

[0017] According to the oil changing device of the fifth aspect,
By providing relative movement displacement means that enables relative movement in the axial direction between the supply pipe and the discharge pipe of the nozzle member, even if the depth of the oil pan differs due to differences in the vehicle type, etc. In addition, since the tip of the supply pipe can be positioned, the oil can be reliably changed.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall schematic diagram of a torque converter oil changer T employing the present invention. M is an automatic transmission, which includes a torque converter section M1 and a transmission section M2.
An oil pan 1 in which torque converter oil O is stored is provided below the automatic transmission M. The torque converter oil O in the oil pan 1 and the torque converter oil (not shown) in the torque converter M1 are It is configured to always circulate.

An oil gauge hole (oil gauge pipe) 2 for inserting an oil gauge (not shown) is formed on the upper side of the oil pan 1. It is configured to be able to know the amount of oil and the deterioration and pollution state of the torque converter oil.

When the deterioration and contamination of the torque converter oil are determined, an oil replacement operation is performed. In this case, the nozzle member 10 of the torque converter oil replacement device T is inserted into the oil gauge hole 2 as shown in the figure. Perform oil change by inserting.

Next, the torque converter oil changing device T will be described. The torque converter oil exchange device T is provided with a supply tank 11 filled with new oil of torque converter oil O and a recovery tank 12 for collecting old oil of torque converter oil O used in the torque converter M1. 1
Reference numerals 1 and 12 are connected by the nozzle member, a supply pipe 13 and a discharge pipe 14.

In the middle of the supply pipe 13, a supply pump 15 for pressurizing the new oil in the supply tank 11 into the oil pan 1 is provided.
An oil pan 1 is provided in the middle of the discharge pipe 14.
Pump 1 that sucks and discharges old oil in the collection tank 12
6 are provided.

Further, a supply tank 11 and a recovery tank 12
A recycle pipe 17 is provided between the recycle pipe 17 and an on-off valve 18, a filter 19, and a recycle pump 20 are provided in the middle of the recycle pipe 17.

Although shown in the figure, a heater may be provided in the middle of the oil path to reduce the viscosity of the torque converter oil and improve the oil flow.

The outer diameter of the nozzle member 10 is constituted by an outer tube member 10A having a diameter smaller than the diameter of the oil gauge hole so that the nozzle member 10 can be inserted into the oil gauge hole 2.
A small-diameter inner tube member 10B is provided inside 0A to form a double tube.

The inner pipe member 10B is connected to the discharge pipe 14, and is set as a discharge pipe for sucking and discharging old oil by the discharge pump 16. The outer pipe member 10A is connected to the supply pipe 13 to supply the oil. It is set as a supply pipe for supplying new oil under pressure by the pump 15.

The distal ends of the pipe members 10A and 10B are
The tip of the inner pipe member 10B is longer than the tip of the outer pipe member 10A.
Is set so that the distal end of the inner pipe member 10A is located below when inserted.

Further, a length changing mechanism 30 is provided at an intermediate portion of the nozzle member 10 so that the outer tube member 10A can be relatively moved in the axial direction between the inner tube member 10B and the outer tube member 10A. Is configured to change.

FIG. 2 is an internal sectional view of the nozzle member, and FIG. 3 is an AA sectional view of FIG.

As can be seen from these figures, the nozzle member 10 is constituted by a double tube of the outer tube member 10A and the inner tube member 10B, and the inner tube member 10B is set longer.

The length changing mechanism 30 is provided on the outer periphery of a separation portion of the outer tube member 10A divided into the distal tube portion 10A1 and the proximal tube portion 10A2, and is fixed to the proximal tube portion 10A2. 31 and a rotating cylindrical portion 32 fixed to the distal end tube portion 10A1. This base end boss portion 31
Threads are formed on the outer periphery of the shaft and the inner periphery of the rotary cylindrical portion 32, respectively, and both are screwed together.

With the screw connection, when the rotating cylindrical portion 32 is rotated, the rotating cylindrical portion 32 is vertically displaced, and the tip tube portion 10A1 is moved up and down with the movement of the rotating cylindrical portion 32. By moving the outer pipe member 10A
Will be changed.

At the upper end of the rotary cylinder 32, a stopper member 33 for suppressing a displacement of a predetermined amount or more is provided. The stopper member 33 also has a sealing function for preventing oil leakage.

The tip surface 10Ba of the inner tube member is set obliquely. Therefore, when the nozzle member 10 is inserted into the oil pan 1 and the old oil is discharged, even if the tip end surface 10Ba of the internal pipe member is brought into contact with the bottom surface of the oil pan 1, the entire surface does not come into contact. The old oil can be easily sucked up.

Next, a description will be given of an oil changing operation performed by the torque converter oil changing device having the above-described structure.

First, when the deterioration and contamination of the torque converter oil O is determined, the nozzle member 10 is inserted into the oil pan 1 through the oil gauge hole 2.

Next, the supply pump 15 and the discharge pump 16 are started to generate a pressing force and a suction force in the supply pipe 13 and the discharge pipe 14 to generate an oil flow.

Then, the new oil is supplied from the supply tank 11 into the oil pan 1, and the old oil in the oil pan 1 is discharged to the recovery tank 12. At this time, since the tips of the inner pipe member 10B and the outer pipe member 10A are set to be shifted vertically, fresh oil is supplied to the upper part of the oil pan 1 and old oil is discharged from the lower part of the oil pan 1.

At this time, by rotating the torque converter M1 simultaneously or at different times, the torque converter oil O in the oil pan 1 and the torque converter M1 is circulated, and the new oil in the oil pan 1 is supplied to the torque converter M1. At the same time, the old oil in the torque converter M1 is discharged into the oil pan 1.

Further, the old oil discharged into the oil pan 1 is discharged to the recovery tank 12 by the discharge pump 16 so that all the old oil in the torque converter M1 and the oil pan 1 is replaced with new oil. be able to.

By using the recycling pipe 17, the torque converter oil O can be reused.

The reuse of the torque converter oil O is limited only when the deterioration of the torque converter oil is small. However, since the deterioration can be suppressed by purifying the polluted oil, the torque converter oil O can be reused for a long term. Is valid.

The operation of recycling the torque converter oil is as follows.
In addition to the normal replacement work, the on-off valve 18 between the supply tank 11 and the recovery tank 12 is opened and the recycling pump 20 is started to supply the old oil in the recovery tank 12 through the recycling pipe 17. It is made to flow to the tank 11 side. Then, after the old oil is filtered by the filter 19 provided in the middle of the recycling pipe 17, the old oil is guided to the supply tank 11 as the recycled oil.

Thus, the old oil and the new oil can be supplied again from the supply tank 11 into the oil pan 1 as the regenerated oil.

According to the torque converter oil exchange device configured as described above, the following effects can be obtained.

First, the nozzle member 10 is constituted by a double tube,
The outer pipe member 10A is used as a supply pipe, and the inner pipe member 10B
By setting each as an independent discharge line,
Since the discharge operation of discharging old oil and the supply operation of supplying new oil can be performed at the same time, the operation time for oil change can be reduced. Further, since the inside of the oil pan 1 does not become empty, it is possible to prevent the air from being accidentally mixed into the torque converter M2.

Further, when the nozzle member 10 is inserted into the oil gauge hole 2, since the nozzle member 10 has only one external shape, the insertion operation can be easily performed.

Further, by providing the recycling pipe 17 for recycling the used oil filtered by the filter 19, the polluted used oil can be filtered and supplied to the torque converter again as regenerated oil. Can be used for a long time.

Further, the nozzle member 10 is connected to the oil gauge hole 2.
When the torque converter oil is simultaneously discharged and supplied inside the oil pan 1 by setting the tip of the inner pipe member 10B below the tip of the outer pipe member 10A when the Since the oil discharge / supply location shifts in the vertical direction, it is possible to eliminate the fear that the supplied new oil is immediately discharged.

Further, since the inner pipe member 10B of the discharge pipe is located below, the most polluted old oil mixed with impurities and the like precipitated in the oil pan can be discharged immediately, so that the efficiency is improved. Oil change can be performed well.

Further, by providing the length changing mechanism 30 for changing the length of the outer pipe member 10A, even if the depth of the oil pan is different due to the type of vehicle or the like, even if the depth of the oil pan is different, the outer pipe can be adjusted to the oil level. Since the tip of the member can be located, the oil can be reliably changed.

Next, another embodiment of the nozzle member will be described with reference to the internal sectional views of FIGS.

The nozzle member 50 is different from the nozzle member 10 of the above embodiment in that the first tube member 50A has a half-moon cross section.
And a second tube member 50B. A cladding tube 50C that covers the first tube member 50A and the second tube member 50B is provided on the outer periphery of the parallel tube, and the outer diameter of the cladding tube 50C is set to be smaller than the oil gauge hole 2. ing.

Of the above-mentioned tube members, the first tube member 50A is
The second pipe member is connected to the supply pipe 13 and is set as a supply pipe that pressurizes and supplies new oil by the supply pump 15, and the second pipe member is connected to the discharge pipe 14 as a discharge pipe that sucks and discharges old oil by the discharge pump 16. Is set.

Further, the tip of the second pipe member 50B is set longer than the tip of the first pipe member 50A, and when inserted into the oil pan 1 as in the above-described embodiment, the second pipe member 50B has a longer end. It is set to be located on the lower side.

Further, the distal end face 50Ba of the second pipe member is also set obliquely as in the above-mentioned embodiment, so that the waste oil can be easily discharged.

In the middle of the cladding tube 50C, a length changing mechanism 60 for changing the length of the first tube member 50A is provided, and the relative length of the first tube member 50A and the second tube member 50B in the axial direction is provided. It is configured to change the position.

The length changing mechanism 60 is composed of a rotating cylindrical body 61 that idles on the cladding tube 50C and a moving piece 62 fixed to the distal end of the first pipe member. Threads are formed on the inner peripheral surface and the outer peripheral surface of the moving piece 62, respectively, and are formed by screwing together.

With this configuration, when the rotating cylindrical body 61 is rotated, the moving piece 62 moves up and down, and the length of the first pipe member 50A is changed.

In the nozzle member 50 of this embodiment,
As in the previous embodiment, the first pipe member 50A and the second pipe member 5
With the two pipe members 0B, it is possible to simultaneously discharge and supply the new oil and the old oil of the torque converter oil, so that the same effect as in the above embodiment can be obtained.

Other effects can be obtained in the same manner as in the above embodiment.

The nozzle member 50 of this embodiment is different from the nozzle member 10 of the previous embodiment in that the nozzle member 50 is a parallel pipe. However, no torque converter oil flows between the two pipe members. Since the two tube members do not become difficult to slide due to the viscosity, the length changing operation by the length changing mechanism can be easily performed.

The two embodiments have been described above.
The present invention is not limited to these examples,
If the nozzle member is provided with a supply pipe and a discharge pipe, and the new oil and the old oil of torque converter oil are simultaneously supplied and discharged in the oil pan, they are all inclusive and deviate from the gist of the present invention. Unless otherwise described, the detailed structure may be appropriately changed.

[Brief description of the drawings]

FIG. 1 is an overall schematic diagram of a torque converter oil exchange device employing the present invention.

FIG. 2 is an internal cross-sectional view of a nozzle member.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is an internal sectional view of a nozzle member according to another embodiment.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

[Explanation of symbols]

 T: Torcon oil changer 10, 50: Nozzle member 10A: Outer pipe member (supply pipe) 10B: Inner pipe member (discharge pipe) 30, 60: Length changing mechanism 50A: First pipe member (supply pipe) 50B... Second pipe member (discharge pipe)

Claims (5)

[Claims] 1. A torque converter oil changing device for changing torque converter oil in a torque converter, comprising: a supply path for supplying new oil under pressure in the torque converter; and a discharge path for sucking and discharging old oil in the torque converter. A torque converter oil exchange device, wherein the supply path and the discharge path are independently formed in a nozzle member inserted into an oil gauge hole of a torque converter. 2. The nozzle member according to claim 1, wherein said nozzle member has a two-layer structure of a double pipe or a parallel pipe, one of which is set as a supply pipe connected to a supply path and the other is set as a discharge pipe connected to a discharge path. The torque converter oil changer as described. 3. A filter means for filtering used oil discharged from the torque converter, and guides used oil discharged by a discharge path to a supply path so as to reuse the used oil filtered by the filter means. The torque converter oil exchange device according to claim 1, wherein a recycle path is provided. 4. The torque converter oil exchanging device according to claim 2, wherein when the nozzle member is inserted into the oil gauge hole, a tip of the discharge pipe is located below a tip of the supply pipe. 5. A supply line and a discharge line of said nozzle member,
3. The torque converter oil exchange device according to claim 2, further comprising a relative movement displacement unit that enables relative movement in the axial direction.