JPH081411B2 - Engine test equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine test apparatus which is carried into a predetermined position on a conveyor by using a pallet.

[0002]

2. Description of the Related Art This type of engine test apparatus operates an engine by interlockingly connecting an engine on a pallet carried in a predetermined position on a conveyor with an dynamometer and the like on the pallet. In order to position the engine-mounted pallet carried in at a predetermined position, a conventional engine test apparatus of this type is used, for example, in Japanese Patent Publication No. 62-26.
As described in Japanese Patent Laid-Open No. 700, the pallet loading / unloading conveyor and the pallet support base are moved up and down relatively to transfer the pallet on the conveyor onto the pallet support base.

[0003]

In such a conventional engine test apparatus, since it is necessary to raise and lower the engine itself together with the pallet, when handling a large and heavy diesel engine or the like, a pallet loading / unloading conveyor is used. An extremely large and powerful elevating and lowering drive means is required to raise and lower the pallet support table relative to each other, which causes an increase in the size of the entire apparatus and a significant increase in cost.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, the features of which will be described with reference numerals of embodiments described later in parentheses. Shown is the pallet positioning that can be engaged and disengaged with respect to the pallet (3) loading / unloading conveyor (1) equipped with the test engine (2) and the pallet (3) stopped at a predetermined position on the conveyor (1). Connecting means (16) and connecting means (22) such as pipes that can be freely connected and disconnected to the connecting unit (11) such as piping on the positioned pallet (3), and positioned pallet
(3) A transmission means (23) equipped with a transmission shaft (24) that can be freely inserted into and removed from the rotary shaft (2a) of the upper engine (2) and a vibration isolator (2) on the floor surface.
It is characterized in that it is arranged on a support frame (21) supported through (0).

When the engine test method using a dynamometer is carried out, the dynamometer (31) is installed on the floor surface, and the transmission means (23) on the dynamometer (31) and the support frame (21). It suffices to interlock with the transmission shaft (24) in (1) through the universal transmission joint means (32).

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention as an engine test device using a dynamometer will be described below with reference to the accompanying drawings. 1 is a carry-in / carry-out of a pallet 3 equipped with a test engine 2. Which is a conveyor for a vehicle, and is a motor 7 for rotating two rows of left and right conveyor roller rows 5a and 5b arranged on the conveyor frame 4 and each roller 6 of both conveyor roller rows 5a and 5b in forward and reverse directions. And a pair of left and right pallet side guide rails 8a and 8b, and a pallet positioning stopper 9. The pallet 3 on which the test engine 2 is mounted has positioning holes 10 provided at two positions in front and back on the center line in the carrying direction.
a, 10b, a connecting unit 11 such as pipes mounted on the front end of the pallet, a throttle operation unit 13 arranged on the front end of the pallet via a pair of left and right columns 12, and attached to the column 12. The exhaust pipe connecting unit 15 is provided above the pallet via the gate-shaped support column 14 provided.

Numeral 16 is a pallet positioning means attached to the conveyor frame 4, which is a pair of front and rear lifting pins 17a and 17b which can be fitted into and removed from the positioning holes 10a and 10b of the pallet 3, and these lifting pins 17a and 17b. 17b
Cylinder units 18a, 18b for individually lifting and lowering
It consists of and.

The conveyor 1 provided with the pallet positioning means 16 is disposed on a support frame 21 supported on a floor surface 19 via a vibration isolator 20 such as a rubber block, and a motor for driving the roller of the conveyor 1 is provided. 7 is mounted on this support frame 21. Reference numeral 22 is a connecting means such as piping that can be connected to and disconnected from the connecting unit 11 such as the piping, 23 is a transmission means having a transmission shaft 24 that can be inserted into and removed from the rotary shaft 2a of the engine 2 on the pallet 3, Reference numeral 25 is a throttle operating means for driving the throttle operating unit 13, and 26 is an exhaust pipe connecting means which can be freely connected to and disconnected from the exhaust pipe connecting unit 15.
2, 23, 25, and 26 are attached to columns 27 that are erected on the support frame 21 adjacent to the front end of the conveyor 1, respectively.

The transmission shaft 24 of the transmission means 23 is supported by a movable base 29 which is driven in the front-rear direction by a cylinder unit 28, and a telescopic transmission is transmitted to a dynamometer 31 installed on a floor surface 19 via a support base 30. Shaft 32a and a pair of universal joints 3
2b and 32c are interlockingly connected via a universal transmission joint means 32.

The engine test device constructed as described above is used as follows. That is, as shown by phantom lines in FIG. 1, the pallet 3 on which the engine 2 to be tested is mounted at a predetermined position is sent by the transfer conveyor 33 onto the conveyor 1 of the engine test apparatus, and the pallet 3
As shown by the solid line in FIG. 1, each conveyor roller 6 of the conveyor roller rows 5a and 5b is driven to rotate by a motor 7.
Allows a pair of left and right pallet side guide rails 8a,
It is fed to a position where it abuts the stopper 9 between 8b. Next, a pair of front and rear lifting pins 17 of the pallet positioning means 16
a, 17b are lifted by the cylinder units 18a, 18b to make a pair of front and rear positioning holes 10 of the pallet 3.
Insert the pallets 3 into the conveyors 1 and 10b from below.
Secure in place above.

On the other hand, the supply and discharge pipes for fuel and cooling water of the engine 2 on the pallet 3 and the terminals of the electric system are connected to corresponding portions of the connection unit 11 such as the pipes on the pallet 3 side, and the engine concerned. 2 throttle lever 34
And the throttle operation unit 13 on the pallet 3 side are interlocked by a detachable rod 35, and the engine 2
Exhaust pipe 36 and exhaust pipe connecting unit 1 on the pallet 3 side
5 is connected to the inlet side connection end 15a. The connection between the engine 2 side and the pallet 3 side can be performed when the engine-mounted pallet 3 is carried into a predetermined position on the conveyor 1 in the engine test device or at an appropriate time before being carried into the engine test device. You can do it.

When the engine-mounted pallet 3 is carried into the predetermined position on the conveyor 1 as described above, as shown by the solid line in FIG.
The inlet side connecting end 26a of 6 and the outlet side connecting end 15b of the exhaust pipe connecting unit 15 on the pallet 3 side are automatically connected and communicated in the pallet carry-in direction. In such a state, the connecting means 22 such as the piping on the pallet 3 side is moved forward by moving the connecting means 22 such as the piping by the cylinder unit 22a.
And the transmission shaft 24 of the transmission means 23 is moved forward by the cylinder unit 28 so as to be spline-fitted to the rotation shaft 2a of the engine 2 and the engine 2 is ignited. At this time, the throttle lever 34 of the engine 2 is operated by the throttle operating means 25 on the engine test device side.
Is operated via the throttle operation unit 13 and the rod 35 on the pallet 3 side, the rotational speed of the engine 2 in the ignition operation can be adjusted, and the rotational force of the engine 2 is controlled by the universal transmission joint means 32. Necessary measurement can be performed by the dynamometer 31 received through. Exhaust gas from the engine 2 is discharged from the exhaust pipe 36 through the exhaust pipe connecting unit 15 on the pallet 3 side and the exhaust pipe connecting means 26 on the engine test device side.

When the engine test is completed, the connecting means 22 such as pipes is moved backward to separate it from the connecting unit 11 such as the pipes on the pallet 3 side, and the transmission shaft 24 of the transmission means 23 is moved backward to move the engine. After separating from the rotary shaft 2a of the pallet 2 and further lowering the lifting pins 17a and 17b of the pallet positioning means 16 to separate from the positioning holes 10a and 10b on the pallet 3 side, the rollers 6 of the carry-in / carry-out conveyor 1 are removed. The motor 7 is driven to rotate in the reverse direction, and the pallet 3 is sent to the transfer conveyor 33 side.

The connecting structure 22 such as the piping on the engine test device side and the connecting unit 11 such as the piping on the pallet 3 side, and the exhaust pipe connecting means 26 on the engine test device side and the exhaust gas on the pallet 3 side. Unit for pipe connection 1
Various structures have been conventionally known with respect to the connection structure with the engine 5 or the connection structure between the throttle operating means 25 on the engine test device side and the throttle operating unit 13 on the pallet 3 side, and therefore detailed description thereof is omitted. To do. Further, in the above-described embodiment, the dynamometer 31 and the rotary shaft 2a of the test engine 2 are interlockingly connected via the transmission means 23 so that the engine test using the dynamometer 31 can be carried out. What can be connected to the rotary shaft 2a of the test engine 2 via the above is not limited to the dynamometer 31 as long as it corresponds to the test content.

[0015]

As described above, according to the engine test apparatus of the present invention, the engine-mounted pallet sent to the predetermined position by the loading / unloading conveyor is positioned by the pallet positioning means, and the engine on the pallet is transmitted. It is possible to perform the required measurement by interlocking with a dynamometer via a means, but by moving the loading / unloading conveyor and the engine-equipped pallet relatively up and down, the engine-equipped pallet can be placed on another support stand. Since the engine-mounted pallet on the conveyor is positioned as it is by the pallet positioning means instead of being transferred, even when handling a large and heavy engine, the entire apparatus is relatively small and inexpensive. You can

Moreover, even if the test engine on the pallet is vibrated at the time of the test, the vibration of the test engine is caused by the vibration isolator between the support frame for supporting the conveyor on which the engine-mounted pallet is placed and the floor surface. It is possible to prevent the vibrations from interfering with the dynamometer installed on the floor and the engine on the pallet, and to perform an accurate engine test. In addition, on the support frame that supports the carry-in / carry-out conveyor, positioning means for the pallet on the conveyor, connecting means such as pipes on the pallet that can be connected / disconnected to the connecting unit, engine and dynamometer Since the transmission means etc. for interlocking with etc. are installed, even if the test engine on the pallet is vibrated during the test, due to the vibration of the test engine, the engagement point between the pallet and the pallet positioning means, piping etc. No unreasonable force acts on the joint between the connecting unit and the connecting means such as pipes, or the joint between the engine rotation shaft and the transmission shaft.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view.

FIG. 2 is a plan view of the engine test device side.

FIG. 3 is a vertical front view of FIG. 1.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Carry-in / carry-out conveyor 2 Test engine 3 Pallet 7 Conveyor drive motor 10a Positioning hole 10b Positioning hole 11 Connection unit for piping 13 Throttle operation unit 15 Exhaust pipe connection unit 16 Pallet positioning means 17a Lifting pin 17b Lifting pin 20 Vibration Isolator 21 Support Frame 22 Connecting Means such as Piping 23 Transmission Means 24 Transmission Shaft 25 Throttle Operating Means 26 Exhaust Pipe Connecting Means 31 Dynamometer 32 Universal Transmission Joint Means

Claims (2)

[Claims] 1. A pallet equipped with a test engine (2)
(3) loading / unloading conveyor (1), pallet positioning means (16) that can be engaged and disengaged with respect to the pallet (3) stopped at a predetermined position on the conveyor (1), and the positioned pallet
(3) Connection means (22) such as piping that can be freely connected and disconnected to the connection unit (11) such as the above piping, and the rotating shaft (2a) of the engine (2) on the positioned pallet (3) An engine in which a transmission means (23) having a transmission shaft (24) that can be freely inserted into and removed from is disposed on a support frame (21) supported on the floor surface via a vibration isolator (20). Test equipment. 2. A dynamometer (31) is installed on the floor surface, and the dynamometer (31) and the transmission shaft (24) in the transmission means (23) on the support frame (21) are free transmission joints. The engine test apparatus according to claim 1, wherein the engine test apparatus is operatively connected via means (32).