JPH0783311A - Oil injection jig for torque converter - Google Patents

Abstract

PURPOSE:To conduct injection in a short time by providing a valve means at a nozzle portion provided in a closed-up connection member at the main body tip of an oil injection jig, making the inside of a torque converter unit maintainable under negative pressure, and preventing the overflow of oil. CONSTITUTION:A closed-up connection member 4 attachable to and detachable from the sleeve of a torque converter unit is provided at the main body 12 tip of an oil injection jig 1, and a nozzle member 9 for oil injection is projected into the closed-up connection member 4, and an oil injection opening 28 to be connected to the oil passing hole 29 of the nozzle member 9 is provided on one side of the main body 12. Also, a piston member 21 whose tip projects through the nozzle hole 30 of the tip of the nozzle member 9 and which has an axial ventilation hole 22, is furnished into a cylinder 15 in the main body 12, and a valve means 31 to open/close the nozzle hole 30 is provided at the tip of the piston member 21, and a vacuum connection opening 37 to communicate with the rear end of the ventulation hole 22 is provided at the rear portion of the main body 12, and negative pressure is brought on by removing the inside air through the ventilation hole 22, and then, oil injection is made possible by opening the nozzle hole 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil injection jig for injecting oil into a torque converter unit.

[0002]

2. Description of the Related Art Conventionally, a hand pump 101 as shown in FIG. 4 has been known as an oil injection jig for a torque converter of this type. This hand pump 101 is operated from an oil supply source (not shown) to the main body 10 by operating a hand lever 104 provided at the tip of the main body 102.
The oil guided to No. 2 is discharged from the nozzle member 106 via the tube 105 connected to the tip.

A flow rate adjusting member 107 is built in the nozzle member 106 as shown in FIG.
The oil is squeezed and flowed in the cylindrical oil passage 108, and at the nozzle tip portion, a smaller cylindrical oil passage 10 is provided.
By squeezing at 9, the amount of oil discharged from the tip of the nozzle member 106 is adjusted.

Next, the structure of the torque converter unit 110 will be described with reference to FIG. An impeller shell 113 having an impeller 112 mounted therein is connected to a converter cover 111 that is interlocked with a power source such as a flywheel of an engine by fastening means such as welding. As shown in FIG.
A hollow cylindrical sleeve 114 extends upward in the.

Inside the sleeve 114 and in the center of the impeller shell 113, a spline 115 is formed in the center hole.
A stator hub unit 117 including a stator hub 116 having a is supported by a thrust bearing 118. A stator blade 119 is planted on the outer circumference of the hub stator unit 117, and the outside is fixed by a stator ring 120. A shaft (not shown) that extends through the sleeve 114 from a fixed portion such as an engine transmission case is engaged with the spline 115.

On the other hand, the stator hub unit 117 is also provided with a thrust bearing 121 on the opposite side of the thrust bearing 118, below the thrust bearing 118, and a turbine hub 123 having a spline 122 in its center hole. Further, the turbine hub 123 is supported such that a transmission input shaft (not shown) is engaged with the central spline 122.

A turbine shell 124 is attached to the outer periphery of the turbine hub 123. Turbine blades 125 are planted inside the turbine shell 124. Further, a ring-shaped thrust bearing 126 mounted on the converter cover 111 side is provided between the turbine hub 123 and the inner wall of the converter cover 111, and an axial play of the turbine hub 123 by a minute gap E is provided. Is allowed.

With the above construction, in order to inject oil into the torque converter unit 110, the nozzle member 106 of the hand pump 101 is set to the sleeve 11 in FIG.
4 so that the tip is guided by the inner diameter portion of the spline 122 of the turbine hub 123. Then, when the hand lever 104 of the hand pump 101 is operated to send the oil to the nozzle member 106, the oil comes out from the inner hole of the flow rate adjusting member 107 to the outer circumference, and the cylindrical oil passage 10
8 and 109 to adjust the flow rate, the clearance E from the tip of the nozzle member 106 to the thrust bearing 126 is adjusted.
And it is injected into the torque converter unit 110 through the gap between the spline 122 and the thrust bearing 121. At this time, the internal air is thrust bearing 11
It is discharged from the gap of 8 through the inner hole of the sleeve 114 to the outside.

When injecting a fixed amount of oil into the torque converter unit 110, the oil is injected by operating the hand lever 104 in the hand pump 101, but in order to control the injection amount, a well-known capacitive type is provided in front of the main body 102. The fixed amount supply device of is added.

[0010]

By the way, since the torque converter unit 110 has built-in parts, the oil passage is narrowed, such as the clearance E of the thrust bearing 126 and the clearance of the thrust bearing 121. There is. Therefore, in order to prevent the oil from overflowing from the outer periphery of the nozzle member 106, in the conventional hand pump, the flow rate adjusting member 107 is arranged in the nozzle member 106 as described above to throttle the oil passage. The flow rate must be adjusted according to. Therefore, there is a problem that the oil injection time becomes long.

Further, in the torque converter unit 110 shown in FIG. 3, since the shafts and the input shafts that mesh with the splines 115 and 122 are not attached, the positions of the built-in parts are unstable, and the hand parts are unstable. The nozzle member 106 of the pump 101 is replaced with the turbine hub 123.
There is a problem in that when the inner diameter of the spline 122 is set, alignment is not easy. Therefore, an object of the present invention is to provide an oil injection jig for a torque converter, which focuses on the above-mentioned conventional problems, prevents the oil from overflowing, has a short injection time, and can stably set a nozzle member. To do.

[0012]

In order to achieve the above-mentioned object, the present invention is an injection jig for injecting oil into a torque converter unit, which is provided at the tip of the main body and which has a torque converter unit. A hermetically-sealed connecting member which is hermetically removable from a sleeve, an oil passage hole connected to an oil inlet for guiding oil in the hermetically-sealed connecting member, and a nozzle member having a nozzle hole at a tip, and the main body described above. A rod member that is axially movably supported inside, has a tip protruding into the nozzle hole of the nozzle member, and has a vent hole that penetrates in the axial direction at the center, and a vacuum that is provided in the main body and that communicates with the vent hole. A valve means having a connection port and opened and closed with the movement of the rod member is formed by the tip of the rod member and the nozzle hole.

[0013]

With the hermetically connected member connected to the sleeve end of the torque converter unit, the rod member is moved toward the tip of the main body, the nozzle hole tip of the nozzle member is opened by the valve means, and then the vacuum connection port is opened. When air is removed, the inside of the torque converter unit becomes negative pressure. Then, when the oil is sent from the oil injection port by the oil pump, the oil is injected into the torque converter unit at high speed due to the negative pressure inside. After the oil injection, when the rod member is moved toward the rear end of the main body, the tip of the nozzle hole of the nozzle member is closed by the valve means. As a result, the interior of the torque converter unit is shut off from the oil pump, so that the oil does not drip outside even when the hermetically connecting member is removed from the sleeve and the oil injection jig is removed. Further, since the oil injection jig is supported by the sleeve via the hermetically-sealed connecting member, the position does not become unstable during oil injection, and the oil does not overflow outside.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view showing an embodiment of the present invention. At the tip (lower end in FIG. 1) of the oil injecting jig 1, there is provided a hermetically connecting member 4 which can be hermetically attached to and detached from the tubular sleeve 3 of the torque converter unit 2 in the operation explanatory view of FIG. The closed connection member 4 is provided with a large-diameter inner hole 5 so as to engage with the outer diameter of the sleeve 3 and to be sealed by an O-ring 6. Further, at the abutting portion of the large-diameter inner hole 5, a hollow disk-shaped packing 7 is provided to protect the upper end surface of the sleeve 3 and, in FIG. It is designed for directional positioning.

Further, the small diameter inner hole 8 of the hermetically connecting member 4 is engaged with the outer diameter portion of the nozzle member 9, and the O ring 10
It is designed to be sealed with. Furthermore, the small diameter inner hole 8
A butterfly bolt 11 is provided in the direction perpendicular to the axis to prevent the hermetically connecting member 4 from coming off from the nozzle member 9. The nozzle member 9 is integrally fixed to the main body 12 by the bolt 13 and is sealed by the O-ring 14. The main body 12 is provided with a cylinder 15 on the upper side and a rod hole 16 on the lower side along the central axis. The cylinder 15 has an O-ring 17
A piston 18 having is provided so as to be vertically movable.

An upper rod 19 extends downward from the piston 18 and a lower rod 20 extends downward from the piston 18 to form a piston member 2.
1 is formed. A vent hole 22 is provided at the center of the piston member 21 so as to penetrate vertically. The lower rod 20 is supported by the rod hole 16 so as to be vertically movable, and an O-ring 23 is provided in the middle portion. A plurality of oil passages 24 are provided on the lower outer peripheral surface of the lower rod 20 so as to extend in the axial direction. An O-ring 25 is provided on the outer peripheral portion of the lower end of the lower rod 20 where the oil passage 24 ends. Further, the O-ring 26 is also provided on the outer peripheral portion of the upper end of the upper rod 19.

An oil passage 27 having a diameter larger than that of the rod hole 16 is provided at the lower end of the body 12, and an oil inlet 28 is provided in the body 12 at right angles to the oil passage 27. . Further, an oil passage hole 29 having the same diameter as the oil passage hole 27 is provided above the nozzle member 9 to a position where it overlaps the oil passage groove 24, but the lower end has the same diameter as the outer diameter of the lower rod 20. Nozzle hole 30 of. And this nozzle hole 30
The oil passage hole 24 and the O ring 25 constitute a valve means 31. Further, a lower air port 32 is provided in the vicinity of the upper end of the rod hole 16 provided in the main body 12 so as to be orthogonal thereto.

A cover member 33 is fixed to the upper end of the main body 12 with bolts 34. The cylinder 15 is sealed with an O-ring 35.
The cover member 33 is provided with a rod hole 36 that supports the upper rod 19 of the piston member 21 so as to be vertically movable, and a vacuum connection port 37 above the rod hole 36. A vent hole 38 having a larger diameter than that of the upper rod 19 is provided at the lower end of the rod hole 36. An upper air port 39 is provided in the cover member 33 at right angles to the ventilation hole 38.

This embodiment is constructed as described above. First, the sealing connection member 4 of the oil injection jig 1 is put on the sleeve 3 of the torque converter unit 2 as shown in FIG.
When the end face is abutted against the packing 7, the large-diameter inner hole 5 of the hermetic connection member 4 is guided and supported by the outer diameter portion of the sleeve 3 and is sealed by the O-ring 6. The main body 1
The oil inlet 28 of No. 2 is previously connected to an oil pump including a constant amount supply device (not shown) via a rubber hose, and the lower air port 32 and the upper air port 39 are also connected to a directional switching valve (not shown) beforehand via a rubber hose. Is connected to an air pressure source including. Further, the vacuum connection port 37 is also connected in advance via a rubber hose to a vacuum chamber including a switching valve and a vacuum pump.

When the oil injection jig 1 is mounted on the sleeve 3, the directional control valve of the air pressure source is operated to operate the piston member 2.
Increase 1 Then, the nozzle hole 30 of the nozzle member 9
Is sealed with an O-ring 25 at the lower end of the lower rod 20, so that the valve means 31 is closed. When the vacuum connection port 37 is connected to the vacuum chamber by operating the switching valve, the ventilation hole 2
Air in the torque converter unit 2 is drawn out via 2 and becomes negative pressure. Next, while operating the oil pump to apply the oil pressure to the oil inlet 28, the direction switching valve of the air pressure source is operated to lower the piston member 21,
Since the valve means 31 is opened, oil is passed through the oil passage hole 2
It is injected into the torque converter unit 2 from the sleeve 3 via the oil passages 7, 29, the oil passage 24, and the nozzle hole 30. At the time of oil injection, it can be seen that a desired amount of oil has been injected into the torque converter unit 2 because the fixed amount supply device is connected to the oil injection port 28.

After the injection of oil is completed, the direction switching valve of the air pressure source is operated to raise the piston member 21,
The valve means 31 is closed. Thereby, even if the oil injection jig 1 is pulled out from the sleeve 3, the oil does not drip to the outside. In addition, the torque converter unit 2
When the sleeve 3 and the sleeve 3 are changed to different sizes and the sealing connection member 4 needs to be replaced, the sealing connection member 4 can be removed from the nozzle member 9 by loosening the wing bolt 11. The connecting member 4 can be easily exchanged for another size.

As described above, according to this embodiment, since the valve means 31 is provided at the tip of the nozzle member 9, the oil does not drip outside when the oil injection jig 1 is attached or detached. Further, since the connection with the torque converter unit 2 is hermetically made between the sleeve 3 and the hermetically-sealed connecting member 4, negative pressure retention and oil overflow are prevented.

Furthermore, since there is no concern that oil will be injected after the pressure inside the torque converter unit 2 becomes negative and there is no concern that the oil will overflow outside, there are unstable parts and narrow passages inside. Even the injection can be completed at high speed. For example, although it took 25 seconds to spill the oil, it is possible to inject the oil in 12 seconds without causing the oil to overflow. Further, with the above-described effects, the oil injection jig 1 can be used to automate the injection of oil into the torque converter unit 2. The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, in the embodiment, the main body and the nozzle member are separate members, but they may be integrated.

[0024]

As described above, according to the present invention, since the oil injection jig is connected to the torque converter unit via the hermetically-sealed connecting member, the negative pressure is maintained in the torque converter unit and the oil is injected during oil injection. This has the effect of reliably preventing overflow to the outside. Then, after the air in the torque converter unit is extracted from the vacuum connection port, the oil is injected at high speed from the oil injection port without worrying about external leakage, so that the working efficiency is improved. Then, since the valve means at the tip of the nozzle member is opened and closed by the movement of the rod member, it is possible to prevent the oil from dropping when the oil injection jig is attached or detached. Furthermore, with the above three effects, the oil injection into the torque converter unit can be automated,
It is possible to save a lot of labor.

[Brief description of drawings]

FIG. 1 is an axial sectional view showing an embodiment of the present invention.

FIG. 2 is an operation explanatory view of the embodiment in FIG.

FIG. 3 is an operation explanatory view of a torque converter unit according to a conventional technique in an axial cross section.

FIG. 4 is an external view of a conventional hand pump.

[Explanation of symbols]

 1 Oil Filling Jig 2 Torque Converter Unit 3 Sleeve 60 Ring 7 Packing 9 Nozzle Member 12 Main Body 15 Cylinder 18 Piston 19 Upper Rod 20 Lower Rod (Rod Member) 21 Piston Member 22 Vent Hole 24 Oil Groove 25 O Ring 27 Through Oil hole 28 Oil inlet 29 Oil passage hole 30 Nozzle hole 31 Valve means 32 Lower air port 33 Cover member 37 Vacuum connection port 39 Upper air port 101 Hand pump 104 Hand lever 106 Nozzle member 107 Flow rate adjusting member 108, 109 Cylindrical oil Road 110 Torque converter unit 111 Converter cover 112 Impeller 113 Impeller shell 114 Sleeve 115 Spline 116 Stator hub 118, 121 Thrust bearing 119 Stator blade 122 Spline 123 Turbine hub 125 Turbine blades 126 thrust bearing E gap

Claims (2)

[Claims] 1. An injection jig for injecting oil into a torque converter unit, the injection jig being provided at a tip of a main body,
A nozzle having a hermetically connecting member that can be hermetically attached to and detached from the sleeve of the torque converter unit, and an oil passage hole connected to an oil inlet for guiding oil in the hermetic connecting member, and having a nozzle hole at the tip. A member, a rod member supported in the main body so as to be movable in the axial direction, and having a tip protruding into the nozzle hole of the nozzle member and having a vent hole penetrating in the axial direction at the center; A valve means having a vacuum connection opening communicating with the ventilation hole, the valve means being opened and closed with the movement of the rod member at the tip of the rod member and the nozzle hole. Oil injection jig. 2. A cylinder communicating with an air port is formed in the main body, and the rod member extends from a piston provided in the cylinder and is movable in the axial direction by air pressure supplied from the air port. The oil injection jig for a torque converter according to claim 1, wherein the jig is an oil injection jig.