JPH035881Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is used for engine ignition test starting, which is used to start a single engine when carrying out various tests on a single engine taken from an engine assembly line. It is related to jigs.

(Prior Art) When a single engine (hereinafter referred to as an engine) is removed from an engine assembly line, various systems such as a lubrication system, a fuel system, an intake/exhaust system, and an electrical system are tested.

These tests are carried out by mounting the engine taken out from the assembly line onto a work trolley on the test line consisting of, for example, a turntable, and making one round on the test line with the engine running.

Conventionally, a device for starting an engine for the above-mentioned test is known, for example, as disclosed in Japanese Unexamined Utility Model Publication No. 59-179277.

In this type of conventional device, a spline shaft is attached to the tip of the drive shaft of the drive device, and the spline shaft is fitted into a spline hole on the engine side, and then the engine is started by rotating the drive shaft. It is configured.

In other words, the spline shaft part attached to the drive device side, that is, the starting jig, is fitted into the spline hole on the engine side, so the engine can be attached to the drive shaft after making it compatible with the drive device. The starting jig must fit into the spline hole on the engine side.

Moreover, when the engine model changes, the diameter of the spline hole on the engine side changes, so it is necessary to replace and attach a starting jig to the drive shaft in accordance with the spline hole diameter each time.

However, since the drive device is located inside the test line with a narrow space, gathering multiple types of starting jigs near the drive device creates a problem in terms of space and reduces work efficiency. There is.

(Purpose of the invention) This invention was made to solve the above conventional problems.
In other words, the object of the present invention is to provide a starting jig for engine ignition testing that can be set on the engine side depending on the engine model at a location where there is sufficient space, and that can be fitted to a drive device on a test line to start the engine. .

(Structure of the invention) In order to achieve the above object, the engine ignition test starting jig according to the invention has one end fitted into a spline hole on the engine side, and the other end driving a drive device for starting the engine. Fitted onto the shaft.

That is, the jig main body has a spline shaft portion fitted into the spline hole at one end, and a fitting head portion having a non-circular cross section fitted onto the drive shaft at the other end.

A retaining member is interposed between the spline shaft portion and the fitting head portion.

The retaining member includes a slide base that is movable in the axial direction of the jig body and is elastically biased toward the mating head portion, and is elastically supported by the slide base and is movable in the radial direction of the jig body. a locking pawl body extending toward the spline shaft portion, and when the spline shaft portion is fitted into the spline hole, the locking body engages with the opening edge of the diaphragm spring on the engine side. It is structured so that

Therefore, before the engine is transported to the test line, the spline shaft formed at one end of the jig body is fitted into the spline hole on the engine side, and after the engine is transported to the test line. Furthermore, the engine can be started by fitting the fitting head portion having a non-circular cross section formed at the other end of the jig body onto the drive shaft of the drive device.

Furthermore, the attachment state of the jig body attached to the engine side is properly maintained by the retaining member until the test is completed, that is, until the engine is removed from the test line.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

FIG. 1 is a side view, partially in section, of the starting jig for engine ignition tests according to this invention. is provided with a mating head 3 of non-circular cross-section, for example hexagonal cross-section.

In this embodiment, the fitting head portion 3 is formed by a plug detachably attached to the other end of the shaft portion 2A formed continuously on the spline shaft portion 2 by screwing.

A retaining member 4 is interposed in the shaft portion 2A between the spline shaft portion 2 and the fitting joint portion 3.

The retaining member 4 includes a slide base body 4A that is fitted onto the shaft portion 2A so as to be freely axially movable, and is elastically supported by the slide base body 4A, and is movable in the radial direction of the shaft portion 2A and is attached to the spline shaft portion 2 side. and a locking claw 4B that extends to.

That is, the base ends of the leaf springs 5 are fixed to two opposing positions on the outer peripheral surface of the slide base 4A with bolts 6, and the free ends of the leaf springs 5 extend toward the spline shaft 2 side. An outward locking pawl body 4B is attached to the holder.

The locking claw body 4B has a spline shaft portion 2 at its tip.
A tapered surface _4b1 that widens from the side toward the fitting head portion 3 side, and a stepped portion _4b2 continuous from the rear end of this tapered surface _4b1 in the direction of the shaft portion 2A are formed.

Also, it comes into contact with the rear end surface of the spline shaft portion 2,
A spring 8 is interposed between the ring member 7 externally fitted and fixed to the shaft portion 2A and the slide base 4A,
With the spring force of this spring 8, the slide base 4A
is elastically biased in the direction of the fitting head portion 3.

In FIGS. 2 and 3, 9 indicates a drive device, and the drive device 9 is a motor 9A for rotational driving.
and a drive shaft 9C supported by a bearing member 9B and rotated by a motor 9A, and a fitting head portion (socket) 9D having a non-circular cross section, for example a hexagonal cross section, is attached to the tip of the drive shaft 9C. There is.

Further, the motor 9A and the drive shaft 9C are reciprocated back and forth (in the left-right direction in the drawing) by a reciprocating cylinder 9E.

That is, the piston rod 9e of the reciprocating cylinder 9E disposed below the bearing member 9B is
The rod member 9G is connected to the lower part of the bearing member 9B, and both side extensions of the bearing member 9B are connected to a rod member 9G that is slidably supported by a pair of guide members 9F.

Therefore, by the operation of the reciprocating cylinder 9E, the drive shaft 9C moves back and forth (in the left-right direction in the drawing) guided by the guide member 9F.

Reference numeral 10 indicates an engine, which is mounted on a truck 11. The engine 10 is carried out from the engine assembly line 12 in FIG. 4, and is mounted on the cart 11 (FIG. 2) on the test line 13 at the carry-in position 13X of the turntable-shaped test line 13.

A diaphragm spring type clutch 14 is assembled into the engine 10, as shown in FIG. The clutch 14 has a fly hole 15,
Clutch cover 16, diaphragm spring 1
7, has a pressure plate 18, a clutch disk 19, etc., and has a hub 1 of the clutch disk 19.
A spline hole 20 is formed on the inner periphery of the fly hole 15, and the fly hole 15 is connected to the crankshaft 2 of the engine 10.
It is attached to 1. 1A in FIG. 1 is a round shaft portion.

In the above configuration, the engine 10 carried out from the engine assembly line 12 in FIG. 4 is temporarily stopped at a jig attachment position Y provided before the carry-in position 13X of the test line 13.

Next, the operator lifts up the jig main body 1 shown in FIG. 1, and as shown in FIG. The spline hole 20 is fitted into the spline hole 20.

In this case, the round shaft portion 1A protruding from the tip of the spline shaft portion 2 is fitted into the bearing 22, and the tapered surface _4b1 at the tip of the locking pawl 4B comes into contact with the open end surface of the diaphragm spring 17. .

Subsequently, the slide base 4A of the retaining member 4 is pressed toward the engine 10 against the spring force of the spring 8. As a result, the locking claw body 4B is moved in the direction of the shaft portion 2A against the spring force of the leaf spring 5, and the seventh
As shown in the figure, the stepped portion _4b2 is engaged with the edge of the opening of the diaphragm spring 17 to prevent it from coming off.

That is, due to the spring force of the spring 8,
The locking claw body 4 is connected to the slide base 4A through the plate spring 5.
The stepped portion _4b2 of B is strongly pressed against the opening edge of the diaphragm spring 17, and the engaged state between the locking pawl 4B and the opening edge of the diaphragm spring 17 is maintained, so that the spline shaft of the jig main body 1 The part 2 can be prevented from coming out of the spline hole 20 of the hub 19a.

After the jig main body 1 is set on the engine 10 side in this way, the engine 10 is mounted on the trolley 11 on the test line 13 as shown in FIG. The jig main body 1 shown in FIG. 7 is located at.

Next, the drive shaft 9C of the drive device 9 shown in FIG. 2 is rotated by the motor 9A, and moves forward toward the engine 10 by the operation of the reciprocating cylinder 9E. The part 9D is fitted into the fitting head part 3 of the jig main body 1 set in the engine 10 (see FIG. 8), and the jig main body 1 is rotated.

The rotation of the jig main body 1 is transmitted to the crankshaft 21 through the path of clutch disk 19 → brake plate 18 → clutch cover 16 → flyhole 15 in FIG. 7, and then to the engine 10 in FIG.
Start the ignition.

When the engine 10 starts, the reciprocating cylinder 9E operates in reverse to move the drive shaft 9C backward, and the fitting head 9D shown in FIG. 8 is pulled out from the fitting head 3 of the jig main body 1, and the engine 10 It is operated in the state shown in FIG. 7 with the main body 1 set.

Thereafter, the above-mentioned test is carried out while the engine 10 continues to operate in the direction of the arrow R on the test line 13 in FIG. Then, against the spring force of the leaf spring 5 of the retaining member 4 shown in FIG. The retaining member 4 is returned to the state shown in FIG. 6.

Next, the spline shaft portion 2 of the jig main body 1 is extracted from the spline hole 20 on the engine 10 side, and the extracted jig main body 1 is transferred to the vicinity of the jig mounting position Y in FIG. Prepare for the next task.

On the other hand, as the model of the engine 10 shown in FIG. 2 changes, the hole diameter of the spline hole 20 shown in FIG. 6 changes. By forming the jig main body 1 in advance, the jig main body 1 can be set at the jig mounting position Y shown in FIG. 4 for engines 10 of different models.

Since the jig mounting position Y has sufficient space, no problem occurs when a large number of jig bodies 1 are assembled together.

In addition, since a common fitting head portion 3 is attached to the other end of the jig main body 1 in FIG. 1, even if the size of the outer diameter of the spline shaft portion 2 changes, the Place the jig body 1 on the test line 1 in Figure 4.
The drive shaft 9 of the drive device 9 located inside 3
C, the engine 1 can be ignited and started.

(Effects of the invention) As explained above, according to this invention, after the jig body is set on the engine at the jig mounting position before being brought to the test line, it is fitted to the drive device on the test line and the engine is started. Since ignition can be started, there is plenty of room for assembly of the jig body, and workability for attaching the jig body to the engine is improved.

Furthermore, since the retaining member is engaged with the diaphragm spring, there is no risk that the jig body will come off during the test.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional side view of the starting jig according to this invention, Fig. 2 is a schematic side view of the drive device, Fig. 3 is a schematic plan view thereof, and Fig. 4 is a schematic plan view of the conveyance line. 5 is a partial sectional view showing an example of the clutch assembled to the engine, FIG. 6 is an explanatory sectional view showing the initial setting state of the jig body, and FIG. 7 is an explanatory sectional view showing the fully set state. 8 are explanatory cross-sectional views showing the fitted state of the jig main body and the drive shaft. 1...Jig main body, 2...Spline shaft portion, 3...
... Fitting head portion, 4 ... Removal prevention member, 4A ... Slide base, 4B ... Locking claw body, 9 ... Drive device,
9C... Drive shaft, 10... Engine, 17... Diaphragm spring, 20... Spline hole.

Claims (1)

[Scope of utility model registration request] This is a starting jig for engine ignition testing, in which one end is fitted into a spline hole on the engine side and the other end is fitted into a drive shaft of a drive device that starts the engine. A spline shaft part is formed to be fitted into the spline hole, and a fitting head part with a non-circular cross section is provided at the other end to be fitted to the drive shaft, and the spline shaft part and the fitting head part are connected to each other. A retaining member is interposed between the slide base and the slide base, which is movable in the axial direction of the jig main body and is elastically biased toward the mating head, and is elastically supported by the slide base. and a locking pawl body that is movable in the radial direction of the jig body and extends toward the spline shaft portion, and when the spline shaft portion is fitted into the spline hole, the locking pawl body A starting jig for engine ignition testing, characterized in that the jig is engaged with an opening edge of a diaphragm spring on the engine side.