JPS6333156Y2 - - Google Patents

Description

[Detailed description of the invention] A. Industrial application field The present invention relates to an improvement of a testing device for testing an engine used in combination with a torque converter, and is capable of connecting a drive plate and a propeller shaft with a single touch. It is.

B. Summary of the invention The engine testing device of the invention includes a connecting flange having the same teeth as the ring gear of the drive plate, which is attached to the propeller shaft, and a connecting member having a rod that is inserted and fixed across the teeth of the drive plate and the connecting flange. The rod of the connecting member is installed in the connecting flange, and the rod of the connecting member is inserted across the tooth groove of the ring gear and the tooth groove of the connecting flange, and the position of the connecting member in the state where the rod is inserted into the tooth groove is fixed and held by a locking device, and the drive plate is attached. The engine is connected to the propeller shaft for power measurement, and the connection between the engine and the test equipment can be easily and quickly made with a single touch.

C. Prior Art Engines used in combination with torque converters do not use flywheels, but instead have drive plates attached to them. In this case, a drive plate having a ring gear for starting the engine on its outer periphery is attached to the rear end of the crankshaft.

For this reason, when installing the drive plate on an engine testing device to test only the engine, the thickness of the drive plate is extremely thin at about 2 to 3 mm for performance reasons, and the distance between the drive plate and the engine is small, so it is difficult to directly transmit power. It is not possible to connect the propeller shaft for Therefore, a method was adopted in which a flywheel for the manual transmission was attached to the engine and the propeller shaft was attached using the bolt holes formed in the flywheel for testing, and after the test was completed, the drive plate was replaced.

D Problems that the invention aims to solve In conventional engine testing equipment, the drive plate is replaced with a flywheel for a manual transmission, which increases the number of man-hours required for attachment and detachment, and also requires a considerable amount of time to attach and detach. death,
In particular, when testing engines on a production line, work efficiency is reduced and a smooth transition to subsequent processes is not possible.

The purpose of the present invention is to eliminate such conventional drawbacks, and to provide an engine testing device that can connect a propeller shaft with a single touch without replacing the flywheel with the drive plate, and can also safely perform high-speed rotation and torque transmission.

E. Means for Solving the Problems The configuration of the present invention that achieves the above object is applicable to an engine testing device that performs tests by connecting an engine with a drive plate used in combination with a torque converter to a dynamometer via a propeller shaft. , the connecting end of the propeller shaft on the engine side is attached to a connecting flange having the same teeth as the ring gear on the outer periphery of the drive plate, and the connecting flange is provided with a rod inserted into a tooth groove between the connecting flange and the ring gear, and the connecting flange is connected to the drive plate. A connecting member for clamping and fixing the tip of the connecting member is rotatably attached to the connecting flange, and a locking device is provided to maintain the fixed state of the connecting member.

F Function When connecting the propeller shaft to the engine side, rotate the connecting member and insert the rod between the tooth groove of the ring gear and the tooth groove of the connecting flange on the outer periphery of the drive plate, and then connect the tip of the drive plate and the connecting flange. The drive plate and the connection flange are connected by restricting the rotational direction by holding the clamping pressure and fixing the rotational position of the connection member with the rod inserted using a locking device. When the connection is to be released, the connection member is rotated to the side that releases the fixation by the locking device and removes the rod from the tooth space, thereby freeing the drive plate and the connection flange.

G. Example Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is an overall configuration diagram of the engine testing device of the present invention, in which an engine 2 to which a drub plate 1 is attached is connected to a propeller shaft 4 via a coupling device 3, and is further connected to a propeller shaft 4 via an intermediate shaft 5 and a clutch 6. The test is conducted by connecting a total of 7. This dynamometer 7 is provided with an air starter 9 for starting the engine 2 via a gear 8.
mesh together.

The coupling device 3 connects the drive plate 1 to the propeller shaft 4 by using the ring gear 1a of the drive plate 1, as shown in FIGS. 2-4a and 4b. The connecting flange 10 connected to the plate surface of the drive plate 1 is in the shape of a disc with the same diameter as the drive plate 1, and teeth 10a having the same shape as the ring gear 1a are carved on the outer periphery, and the central part is A flange portion is formed to protrude outward. A cylindrical center pin 11 is fixed with bolts to the engine side of this flange portion for inserting into a center hole formed in the crankshaft to align the axes. In addition, the connecting flange 10
Bolt holes for connecting the propeller shaft 4 are formed on the outside of the holder, and the propeller shaft 4 is fixed with bolts. A connecting flange 10 is used to connect this connecting flange 10 and the drive plate 1.
A hinge 12 is fixed with bolts at four locations on the circumference of the hinge 12, and a connecting member 13 having a hook-shaped tip is connected to the elongated hole 13 via a pin 12a of the hinge 12.
a slightly in the axial direction of the tooth 10a (in the left-right direction in FIG. 3) so as to be freely slidable and rotatable. This connecting member 13 has the following features as shown in FIG.
As shown in b, there are a plurality of rods 15 (three in the illustrated example) that are inserted into the overlapping tooth grooves 14 between the ring gear 1a and the teeth 10a of the connecting flange 10 to restrict their relative rotation and enable torque transmission. book) tooth 10a
It is arranged according to the pitch of the pipe and welded on the outside. Further, a handle 16 is attached to facilitate connection and release using the connection member 13. moreover,
A lock bolt 18 serves as a locking device 17 for locking the distal end of the connecting member 13 to the outer side of the ring gear 1a and holding it in the connected state with the rod 15 inserted into the tooth groove 14. The bolt tip is brought into contact with the upper surface of the hinge 12 and the connecting member 13 is stretched to lock it. The tip of this lock bolt 18 has a smaller diameter than the threaded part, and a ring 19 is attached with a snap spring to prevent it from falling off when the connecting member 13 is released, and a spring 20 to prevent rotation is interposed between the bolt 18 and the connecting member 13. It is equipped. Further, a spring 21 is interposed between the connecting member 13 and the hinge 12 to facilitate locking the connecting member 13 to the ring gear 1a.

Next, the operation of the device of the present invention will be explained.

First, the propeller shaft 4 is attached to the bolt hole of the connecting flange 10, but in this case, the propeller shaft 4 has a spline in the middle part etc.
It is preferable to use something that is expandable and retractable, which makes subsequent work easier. Next, with the lock bolt 18 of the lock device 17 loosened, the connecting member 13 is
Using two handles 16 each, insert the holding center pin 11 together with the propeller shaft 4 into the center hole of the crankshaft to align the axes. Then, the teeth 10a of the connecting flange 10 and the ring gear 1
Position the handle 16 so that it overlaps with the handle 16.
to connect the tip of the connecting member 13 to the ring gear 1.
Rotate further while locking on the side surface of tooth groove 1.
Insert rod 15 into 4. In this state, they are connected, but in order to maintain this, the lock bolt 18 is tightened until it is in the locked state. This state is the second
It is indicated by the symbol A in the figure and FIG.

As a result, torque can be transmitted via the drive plate 1, and tests can be conducted in the same way as in the conventional case.

After the test is complete, when removing it, loosen the locking bolt 18 to release the locked state, contrary to the case of coupling. In this released state, the connecting member 13 and the lock bolt 18 are positioned as indicated by the symbol B in FIGS. 2 and 3. At this time, lock bolt 18
The ring 19 prevents the ring from falling off, making the next work easier. Thereafter, by holding the handle 16 together with the propeller shaft 4, the distal end of the connecting member 13 is released, and the connecting flange 10 can be removed together with the propeller shaft 4. At this time, the connecting member 13 is connected to the elongated hole 1.
3a allows for easy release.

In the above embodiment, the connecting flange is provided with teeth on the entire circumference, but it is sufficient if there are teeth at least in the portion of the connecting member into which the rod is inserted. Further, the number of connecting members is not limited to four, and the total number may be determined depending on the magnitude of the transmitted torque, etc.

H. Effect of the invention The engine testing device of the invention attaches a connecting flange having the same teeth as the ring gear of the drive plate to the propeller shaft, and inserts and fixes the rod of the connecting member into the tooth groove of the ring gear and the connecting flange. Since the plate and the connecting flange are connected, the propeller shaft can be easily connected to the drive plate even if the engine is equipped with a drive plate, and the time required for testing can be shortened and the test can be carried out efficiently. Furthermore, high-speed operation and torque transmission can be performed safely and reliably.

[Brief explanation of the drawing]

1 to 4 a and b show an embodiment of the present invention, in which FIG. 1 is an overall configuration diagram, FIG. 2 is a front view of the coupling device, FIG. 3 is a central sectional view of the coupling device, and FIG. FIG. 4a is a front view of the connecting member, and FIG. 4b is a left side view of the same. In the drawing, 1 is a drive plate, 1a is a ring gear, 2 is an engine, 3 is a coupling device, 4 is a propeller shaft, 7 is a dynamometer, 10 is a connecting flange,
10a is a tooth, 12 is a hinge, 13 is a connecting member, 1
3a is a long hole, 15 is a rod, 16 is a handle, 17 is a locking device, and 18 is a locking bolt.

Claims (1)

[Scope of utility model registration request] In an engine testing device that performs tests by connecting an engine with a drive plate used in combination with a torque converter to a dynamometer via a propeller shaft, the engine side connection end of the propeller shaft is connected to the same tooth as the ring gear on the outer periphery of the drive plate. A connecting member that is attached to a connecting flange having a rod and that is inserted into a tooth gap between the connecting flange and the ring gear, and that clamps and fixes the tip of the drive plate and the connecting flange is rotatably attached to the connecting flange. An engine testing device characterized by being provided with a locking device that maintains the fixed state of the connecting member while being installed.