JPH0599793A - Internal combustion engine test facility - Google Patents

Abstract

PURPOSE:To enable abnormal sound and vibration to be measured accurately in a sensory way by providing test devices at a plurality of positions in a circumferential direction on a turntable and then providing a screening wall between the test devices. CONSTITUTION:Internal combustion engine test devices 2 are placed radially at a plurality of positions at each specified angle in a circumferential direction on a turntable 1. A cylindrical center screening body 6 placed at the center part and a control panel 7, etc., are provided within the inside. A plurality of screening walls 8 are placed radially between the test devices 2. The turntable 1 performs continuous rotation or intermittent rotation. An internal combustion engine 4 which is carried by a carrying-in coveyer 11 is received by a truck 14 and is carried into the test devices 2. Since the internal combustion engine 4 is located within subdivided chamber at the time of a sensory test, an accurate measurement can be made without being affected by sound or external noise of the adjacent internal noise 4. The internal combustion engine 4 a specified test of which is completed is passed to a carrying-out conveyer 16 through a truck 17 and then carried on to the next process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internal combustion engine test facility used for performing a performance test on an internal combustion engine before it is incorporated into a vehicle body, for example, in an automobile assembly plant.

[0002]

2. Description of the Related Art Conventionally, as this type of equipment, a structure disclosed in, for example, JP-A-2-126131 is provided. According to this conventional configuration, the first test device for the internal combustion engine is provided at a plurality of positions on the turntable in the circumferential direction, the carry-in route and the carry-out route of the internal combustion engine are provided outside the turntable, and the first test device is provided at the side of the carry-out route. There is a test room with two test devices.

According to this conventional configuration, the internal combustion engine is carried into the first test apparatus on the turntable from the carry-in path, the internal combustion engine is warmed up, the operating conditions are adjusted, and then the operation is stopped. After taking out the internal combustion engine to the carry-out path, it is put in the test room, and the internal combustion engine is operated again in this test room to measure abnormal noise and vibration, and at the same time, data is collected during operation.

[0004]

According to the above-mentioned conventional structure, abnormal noise and vibration due to the sensory sense of the operator can be suitably measured in an isolated state in the test chamber. However, since the test room is constructed separately from the turntable, the entire equipment becomes expensive, and a worker different from the turntable side must be assigned to each test room. Furthermore, the work of entering the test room from the carry-out route and the transfer work of moving the test room to the carry-out route are required, and a corresponding device is required and the transfer work time must be secured.

An object of the present invention is to provide an internal combustion engine test facility capable of accurately measuring the abnormal noise and vibration caused by the reaction on the turntable.

[0006]

In order to achieve the above object, the internal combustion engine test equipment of the present invention is provided with internal combustion engine test devices at a plurality of circumferential positions on a turntable, and a central partition is provided from a central portion on the turntable. A body is erected, and a partition wall located between the internal combustion engine test devices is continuously provided from the central partition body and the turntable, and an outer wall body is erected outside the turntable and the outer wall A ceiling wall located above the partition wall is provided on the upper part of the body.

[0007]

According to the structure of the present invention, the internal combustion engine carried into the internal combustion engine testing device is warmed up in the warming step during the rotation of the turntable.
Next, operating conditions such as idle adjustment, ignition timing adjustment, and exhaust gas adjustment are adjusted in the adjustment process, and noise, vibration, responsiveness, water leakage of each part, etc. are checked in the inspection process, and then they are carried out from the internal combustion engine test equipment. It

The inspection in the above-mentioned inspection process is based on the sense of the operator (direct hearing, etc.), and at that time, the internal combustion engine is equipped with a turntable, a central partition body, left and right partition walls, an outer wall body, and a ceiling. Since it is located in the room partitioned by the wall, the desired measurement (judgment) can be performed without being affected by the noise of the adjacent internal combustion engine or external noise.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a turntable, and internal combustion engine test devices 2 are radially arranged at a plurality of positions on the upper surface at predetermined angular intervals (eight positions at 45 ° intervals in the embodiment), and these internal combustion engine test devices 2 are controlled respectively. It has a part 3. In the turntable 1, the internal combustion engine 4 is handled via the pallet 5.

At the center of the turntable 1, a cylindrical central partition body 6 is erected, and the central partition body 6 is provided.
Inside, a control panel 7 connected to the control unit 3 and a ground-side control device (not shown) are provided. A plurality of partition walls 8 located between the internal combustion engine test devices 2 are radially arranged in a continuous manner from the outer surface of the central partition body 6 and the upper surface of the turntable 1. The central partition body 6 is provided with an opening / closing door 9 facing each internal combustion engine test apparatus 2.

On the outside of the turntable 1, a carry-in device 10 for the internal combustion engine 4 to the internal combustion engine test device 2 is arranged. That is, the carry-in device 10 includes a carry-in conveyor 11,
A direction changing device arranged outside the end of the carry-in conveyor 11.
12 and a relay conveyor 13 facing the direction changing device 12.
And a transfer carriage 14 that can be opposed to the end of the relay conveyor 13 and can transfer the internal combustion engine 4 to the internal combustion engine test apparatus 2. The transfer carriage 14 is on an arc path formed outside the turntable 1. It becomes free to travel back and forth.

An unloading device 15 for the internal combustion engine 4 with respect to the internal combustion engine testing device 2 is disposed outside the turntable 1 and laterally adjacent to the loading device 10. That is, the carry-out device 15 is composed of a carry-out conveyor 16 and a take-out carriage 17 that can freely face the starting end of the carry-out conveyor 16 and that can take out the internal combustion engine 4 from the internal combustion engine test apparatus 2. It is possible to freely reciprocate on the circular arc path formed outside.

A cylindrical outer wall body 20 is erected on the outside of the turntable 1 so as not to interfere with the operation of the two carriages 14 and 17 in the arc path, and the upper end of the outer wall body 20 is A ceiling wall 21 that is close to the upper surface of the partition wall 8 is provided.
The outer wall body 20 is provided with a plurality of open / close doors 22. 23
Indicates a rotary drive device linked to the turntable 1.

The operation of the above-described structure will be described below. Here, the turntable 1 performs constant-speed continuous rotation or regular intermittent rotation. Internal combustion engine 4 supported by pallet 5 and conveyed by carry-in conveyor 11
Is transferred from the direction changing device 12 to the relay conveyor 13 and then received by the transfer carriage 14 facing the relay conveyor 13. Then, the pallet 5 on the transfer carriage 14 is carried into the internal combustion engine test apparatus 2 while moving the transfer carriage 14 in synchronization with the target empty internal combustion engine test apparatus 2.

As described above, during the rotation of the turntable 1, the warm-up operation of the internal combustion engine 4 is first performed in the warm-up step A, and then the operation conditions such as idle adjustment, ignition timing adjustment and exhaust gas adjustment are adjusted in the adjustment step B. After the inspection process C is inspected for noise, vibration, responsiveness, leakage of water in each part, etc., the water removal process D is performed.

The inspection in the above-mentioned inspection step C is based on the sense of the operator (direct hearing, etc.). At that time, the internal combustion engine 4 includes the turntable 1, the central partition body 6, and the left and right partition walls 8. Since it is located in the room partitioned by the outer wall body 20 and the ceiling wall 21, it is not affected by the noise of the adjacent internal combustion engine 4 or external noise, and thus accurate measurement (judgment) is made. Can be done.

The internal combustion engine 4 which has been subjected to the intended test in this manner is delivered to the carry-out conveyor 16 via the take-out carriage 17 and carried out to the next step. In the above embodiment, the central partition body 6, the left and right partition walls 8, the outer wall body 20 and the ceiling wall
Although 21 may be an ordinary material, it can be more suitably adopted when a soundproof structure is installed. Further, although the central partition body 6 has a cylindrical shape, it may have various shapes such as a polygonal cylindrical shape.

[0018]

According to the present invention having the above-mentioned structure, the internal combustion engine loaded into the internal combustion engine test apparatus is warmed up, the idle is adjusted, while the turntable is rotating.
Adjustment of operating conditions such as ignition timing adjustment, exhaust gas adjustment, noise,
It is possible to inspect vibration, responsiveness, water leakage in each part, etc. By performing all the tests on the turntable in this way, the entire equipment can be provided at low cost, the workers can be economically dispatched, and the work time can be shortened.

In particular, according to the present invention, the sensory inspection by the operator in the inspection process is performed by an internal combustion engine operating in a room defined by a turntable, a central partition, left and right partition walls, an outer wall and a ceiling wall. Since the measurement is performed for the engine, the desired measurement (judgment) can always be performed accurately without being affected by the noise of the adjacent internal combustion engine or external noise.

[Brief description of drawings]

FIG. 1 is a plan view of an internal combustion engine test equipment according to an embodiment of the present invention.

[Explanation of symbols]

 1 Turntable 2 Internal Combustion Engine Test Device 4 Internal Combustion Engine 6 Central Partition 8 Partition Wall 10 Loading Device 15 Unloading Device 20 Outer Wall Body 21 Ceiling Wall

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Tomoaki Hayashi, 3-2-11 Minejima, Nishiyodogawa-ku, Osaka City, Osaka Prefecture Daifuku Co., Ltd. (72) Eiji Taguchi, 3-2-11, Minejima, Nishiyodogawa-ku, Osaka No. Daifuku Co., Ltd.

Claims (1)

[Claims] 1. An internal combustion engine test device is provided at a plurality of positions on a turntable in the circumferential direction, a central partition body is erected from a central portion on the turntable, and the internal combustion engine is operated from the central partition body and the turntable. Partition walls that are located between engine test devices are continuously provided, an outer wall body is erected outside the turntable, and a ceiling wall that is located above the partition wall is provided above the outer wall body. Internal combustion engine test facility characterized by.