JP2964795B2 - Internal combustion 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 internal combustion engine test apparatus for performing a performance test on an internal combustion engine before being incorporated into a vehicle body, for example, in an automobile assembly plant.

[0002]

2. Description of the Related Art Conventionally, as this kind of internal combustion engine test apparatus, there is one shown in FIGS. That is, the internal combustion engine test device 60 includes a pedestal portion 62 provided on the base table 61,
The pedestal section 62 is composed of a control section 63 erected from the rear end side. The pedestal portion 62 includes a roller conveyor 64 extending adjacent to an end of a loading / unloading roller conveyor 67 for loading / unloading the internal combustion engine 66 onto / from the pedestal portion 62, and a lifting / lowering device 65 for lifting / lowering the roller conveyor 64. Is provided.

[0003] A pair of left and right cylinder devices 68 for supporting the internal combustion engine are provided on the front surface of the control unit 63, and the front ends of piston rods 69 of these cylinder devices 68 can be engaged with both side surfaces of the internal combustion engine 66. A locking claw 70 is formed. Also, 72
Is a positioning pin for determining the vertical position of the internal combustion engine 66,
The positioning pins 72 can be freely inserted into positioning holes (not shown) formed on the front surface of the internal combustion engine 66. The positioning pin 72 is attached to a movable body 73 that can move up and down and move back and forth. (Note that in FIG. 9, the moving body 73 is connected to an internal combustion engine test apparatus.
Although it is provided above 60, there is also a type provided below. The internal combustion engine 66 moves on a carry-in / out roller conveyor 67 and a roller conveyor 64 via a pallet 74. 75
Is a hose on the internal combustion engine side for supplying fuel, air, cooling water, etc. to the internal combustion engine 66, and their ends are pallets 74.
At the rear end. The pedestal portion 62 has a junction 76 which can be freely connected to and separated from the internal combustion engine side hose 75.
(Connection device) is provided. This junction 76
Is movable back and forth by a cylinder device (not shown), and a pipe 77 provided on the base 61 side is connected to the junction 76.

According to this, as shown in FIG. 9, the internal combustion engine 66 carried into the internal combustion engine testing device 60 by the carry-in / out roller conveyor 67 is transferred to the roller conveyor 64 via the pallet 74.
It is placed on top and stops. Thereafter, as shown by the imaginary line in FIG. 10, the piston rod 69 of the cylinder device 68 is made to protrude, and the locking claw 70 is engaged with both side surfaces of the internal combustion engine 66. Then, the moving body 73 is lowered and moved backward, and the positioning pin 72 is fitted into a positioning hole (not shown) of the internal combustion engine 66, whereby the internal combustion engine 66 is positioned vertically.

Thereafter, as shown by a solid line in FIG. 10, the internal combustion engine 66 is supported by the piston rod 69 and the positioning pin 72 and fixed above the pedestal portion 62 by lowering the elevating device 65. 74 descends and pedestal
It is placed on 62. Then, by retracting the piston rod 69 and moving the moving body 73 backward, the internal combustion engine 66 is retracted rearward and supported at a predetermined position. At this time, the junction 76 advances and is connected to the end of the internal combustion engine side hose 75 of the pallet 74 by pressing. In this state, the internal combustion engine 66 is started to perform various tests such as a vibration test.

[0006] As shown by the solid line in FIG.
The reason why the 66 is separated from the pallet 74 and floated above the pedestal portion 62 is to approximate the condition when the internal combustion engine 66 is mounted on an actual vehicle body. (That is, when the internal combustion engine 66 is fixed to the pallet 74, the vibration of the internal combustion engine 66
Because it is regulated by 74, accurate measurements cannot be obtained. Accordingly, in the vibration test, the vibration of the internal combustion engine 66 is not regulated by the pallet 74, and thus is accurately measured.

After completion of the test, the internal combustion engine 66 is pushed out by the cylinder device 68 as shown by the imaginary line in FIG. 10, and the elevating device 65 is raised and placed on the pallet 74 as shown in FIG. At this time, the junction 76 moves backward and separates from the end of the internal combustion engine side hose 75. Thereafter, the locking pawl 70 and the positioning pin 72 are removed from the internal combustion engine 66, and the roller conveyor is removed.
The internal combustion engine 66 is carried out of the internal combustion engine test apparatus 60 together with the pallet 74 by driving the 64 and the carry-in / out roller conveyor 67.

[0008]

However, according to the above-mentioned conventional type, since the internal combustion engine 66 is supported at a predetermined position of the internal combustion engine test device 60, the lifting device 65 for lifting and lowering the pallet 74 is required. There has been a problem that the structure of the internal combustion engine test device 60 becomes complicated and costs increase.

An object of the present invention is to solve the above problems and to provide an internal combustion engine test apparatus which can eliminate the need for a lifting device.

[0010]

According to a first aspect of the present invention, there is provided an internal combustion engine test apparatus comprising: a swinging pallet for supporting an internal combustion engine on a support pallet; the installed engine support base, the internal combustion
The retracting device that pulls the support pallet into the engine support
It is provided so that it can move freely .

The internal combustion engine test apparatus according to the second aspect of the present invention
A swing pallet for supporting the internal combustion engine is provided on the support pallet, a locked hole penetrating the upper and lower surfaces of the support pallet is formed, and a lower end located above the locked hole on the swing pallet side. An open positioning hole is formed, and a retracting device for retracting the support pallet on the internal combustion engine support base is provided so as to be horizontally movable, and the retractable device is vertically movable and can be inserted into and disengaged from the locked hole from below. A body is provided, and a positioning projection is formed at the upper end of the locking body so that the positioning projection can be fitted into and removed from the positioning hole.

[0012]

According to the first aspect of the present invention, the support pallet is placed on the internal combustion engine support base with the internal combustion engine set on the oscillating pallet, and then the internal combustion engine is started, whereby the vibration of the internal combustion engine is reduced. Is transmitted to the swing pallet, and the swing pallet swings according to the vibration of the internal combustion engine. As described above, since the vibration of the internal combustion engine is not regulated by the oscillating pallet, the vibration test of the internal combustion engine can be performed under a condition close to a state where the internal combustion engine is actually mounted on the vehicle body. In addition, the support pallet is moved by the retraction device to the internal combustion engine
Because it can be pulled into the support,
Can be placed in a predetermined position on the internal combustion engine support base.
You.

According to the configuration of the second aspect of the present invention, by operating the retracting device with the internal combustion engine set on the swinging pallet, the locking body is raised and inserted into the locked hole from below. Thus, the support pallet is engaged with the retracting device, and is retracted to a predetermined position on the internal combustion engine support base together with the swing pallet and the internal combustion engine. Then, the locking pallet is positioned on the supporting pallet by further raising the locking body inserted into the locked hole, so that the positioning protrusion projects above the locked hole and fits into the positioning hole. Being fixed in the correct position. Then, by lowering the locking body, the positioning projection is lowered and detaches from the positioning hole. Thus, the fixed swing pallet can swing freely on the support pallet.

Thereafter, when the internal combustion engine is started, the vibration of the internal combustion engine is transmitted to the swing pallet, and the swing pallet swings according to the vibration. As described above, since the vibration of the internal combustion engine is not regulated by the oscillating pallet, the vibration test of the internal combustion engine can be performed under a condition close to a state where the internal combustion engine is actually mounted on the vehicle body. Also, during the test, since the locking body is inserted into the locked hole, the support pallet is fixed to the internal combustion engine support base,
The displacement of the support pallet due to the vibration of the internal combustion engine and the swing of the swing pallet is prevented.

[0015]

An embodiment of the present invention will be described below. As shown in FIG. 8, reference numeral 1 denotes a turntable which intermittently rotates around a vertical axis 2 at a set angle α by receiving a driving force of a rotary driving device (not shown). A plurality of internal combustion engine test devices 3
Are arranged radially. Reference numeral 4 denotes a carry-in device that supplies the internal combustion engine 5 to the test device 3, and reference numeral 6 denotes a carry-out device that takes out the internal combustion engine 5 from the test device 3.

As shown in FIG. 1 to FIG.
Is composed of an internal combustion engine support 7 and a control unit 8 erected from the rear end side of the internal combustion engine support 7. The internal combustion engine support 7 includes a base frame 9 disposed on the turntable 1 and a free roller conveyor 10 provided on the base frame 9.

The base frame 9 includes a pair of left and right frame members 13 and a base plate 14 provided between the two frame members 13. The free roller conveyor 10 includes a conveyor frame 15 provided on a base plate 14 and formed in a central concave shape, a plurality of brackets 16 erected on both side ends of the conveyor frame 15, and upper ends of these brackets 16. It is formed by a free roller 17 attached to the portion.

As shown in FIGS. 3, 4, and 7, the free roller conveyor 10 can support the support pallet 18 so as to be able to be transported. At four places on the upper surface of the support pallet 18, support stands 20 for swingably supporting the swing pallet 19 are erected, and the upper end of each support stand 20 is formed as an inclined surface 21 facing inward. ing. The support pallet 18 has a pair of left and right locked holes 24 formed therein. That is,
The two locked holes 24 are fitted with fitting rings fitted on the support pallet 18.
25 and penetrates the upper and lower surfaces.

As shown in FIG. 3, the swing pallet 19
Is swingably provided on the support pallet 18 via the rubber body 26 for vibration isolation. Each of the vibration-proof rubber bodies 26 is supported on the inclined surface 21 of the support base 20 of the support pallet 18. Note that, as shown in FIG. 2, the inclination angle of each vibration-proof rubber body 26 is set to β = 60 °. Rocking pallet above
A pair of left and right cylindrical brackets 27 are vertically provided on the lower surface of 19. Fitting wheels 28 are attached to the lower ends of both brackets 27, and each fitting wheel 28 is formed with a positioning hole 29 whose lower end is open. Each positioning hole 29 has a smaller diameter than the locked hole 24 and is located above the locked hole 24. As shown in FIGS. 1 and 2, support legs 35 that support the internal combustion engine 5 are provided upright on the upper surface of the swing pallet 19.

The internal combustion engine support 7 is provided with a pull-in device 36 for pulling the support pallet 18 onto the free roller conveyor 10. That is, as shown in FIGS. 3, 5, and 6, the retraction device 36 is a pair of left and right guide rails laid in the front-rear direction at the center of the conveyor frame 15.
37, a moving body 38 supported and guided by both guide rails 37 and movable back and forth, and a cylinder device for driving the moving body 38
Formed with 39.

As shown in FIGS. 3, 4, and 6, the moving body 38 includes a lifting block 40 (an example of a locking body) that can be inserted into and removed from the locked hole 24 of the support pallet 18 from below. Left and right pairs are provided. That is, the through hole 41 is provided on the upper surface of the moving body 38.
A pair of left and right rectangular parallelepiped pedestals 42 having a through hole 41 are provided.
Inside, a column-shaped elevating block 40 is provided so as to be able to move up and down. At the upper end of each elevating block 40, a positioning pin 40a (an example of a positioning protrusion) that can be fitted into and removed from the positioning hole 29.
Are formed. In addition, each lifting block
A cylinder device 43 for raising and lowering 40 is provided, and each lifting block 40 is connected to the tip of a piston rod 45 of each cylinder device 43.

As shown in FIGS. 1, 5 and 7, a pipe junction 49 (connecting device) is provided at a rear portion on the internal combustion engine support base 7. This junction 49 connects a hose 50 on the internal combustion engine 5 side to a pipe 51 on the turntable 1 side. That is, the ends of the hoses 50 are supported by the rear end of the upper surface of the support pallet 18, respectively.
A connection flange (not shown) is provided. And
The junction 49 is formed with a flange portion (not shown) which can be pressed and separated from the connection flange.

As shown in FIGS. 1 and 2, the control section 8 is formed in a rectangular parallelepiped shape having substantially the same width as the internal combustion engine support base 7, and instruments and operation panels are provided on the front and side surfaces thereof. ing. A pit 46 is formed below the internal combustion engine support 7. 47 is an internal combustion engine support 7
The cover 47 is an openable cover that covers the upper part, and the opened cover 47 is stored in the pit 46.

The operation of the above configuration will be described below.
As shown in FIGS. 1 and 8, the internal combustion engine 5 is supplied to the test apparatus 3 by the loading device 4 together with the support pallet 18 while being supported on the swing pallet 19 via the support legs 35,
During the intermittent rotation of the turntable 1, various tests such as a warm-up operation, an idle adjustment, and a vibration test are performed.

At this time, as shown by the imaginary line (a) in FIG. 5 and the imaginary line (b) in FIG. 6, the cylinder device 39 is driven to move the moving body 38 forward and stop at the loading device 4 side. . Then, as shown by the solid line in FIG. 4, by operating the cylinder device 43, the elevating block 40 is raised and the locked hole is raised.
Inserted into 24 from below. This allows the support pallet 18
Is engaged with the moving body 38 via the lifting block 40. In this state, by driving the cylinder device 39 to move the moving body 38 backward, the support pallet 18 is moved from the loading device 4 side to the internal combustion engine as shown in solid lines in FIGS. 5 and 6 and FIG. It is drawn on the support 7 and moves while being supported by the free rollers 17, and stops at a predetermined position on the internal combustion engine support 7.

At this time, the connecting flange at the end of the hose 50 on the internal combustion engine 5 side is pressed into contact with the flange portion of the junction 49 by pulling in the support pallet 18, so that the hose 50 is connected to the pipe 51 on the turntable 1 side. I do. As a result, fuel, air, cooling water, and the like are supplied from the turntable 1 side to the internal combustion engine 5 through each pipe 51 and the hose 50.

Further, as shown by the imaginary line in FIG. 4, by further raising the lifting block 40 inserted into the locked hole 24, the positioning pin portion 40a projects above the locked hole 24. It is fitted into the positioning hole 29. As a result, the swing pallet 19 is positioned on the support pallet 18 and fixed at an accurate position. Thereafter, as shown by the solid line in FIG. 4, the cylinder device 43 is operated to lower the elevating block 40, whereby the positioning pin 40 a is lowered and removed from the positioning hole 29. Thereby, the fixed swing pallet 19 can swing freely on the support pallet 18.

Thereafter, in the vibration test, the internal combustion engine 5
Is started, the vibration of the internal combustion engine 5 is transmitted to the swing pallet 19, and the swing pallet 19 swings according to the vibration. Thus, the vibration of the internal combustion engine 5 is
19 is not regulated by the internal combustion engine 5
The vibration test of the internal combustion engine 5 can be performed under a condition close to a state in which is mounted on the vehicle body. In addition, during the test, the vibration of the swing pallet 19 is absorbed by the rubber body 26 for vibration isolation, so that the vibration of the swing pallet 19 is prevented from being transmitted to the support pallet 18 side. Furthermore, since the lifting block 40 is inserted into the locked hole 24, the support pallet 18 is fixed to the internal combustion engine support base 7 side, so that the support pallet 18 is prevented from shifting.

After completion of the various tests, the moving body 38 is moved forward and stopped at the unloading device 6 as shown by the imaginary line (a) in FIG. 5 and the imaginary line (b) in FIG. As a result, the internal combustion engine 5 is pushed out to the carry-out device 6 side via the support pallet 18 and the hose 50 is separated from the junction 49. Then, as shown in FIG. 3, the cylinder device 43 is operated to lower the elevating block 40 so as to be disengaged downward from the locked hole 24. As a result, the lifting block 40 retreats into the pedestal 42, and the support pallet 18 is cut off from the moving body 38. Thereafter, the support pallet 18 is taken out of the test apparatus 3 by the unloading device 6.

In the above-described embodiment, the double pallet structure in which the swinging pallet 19 for supporting the internal combustion engine 5 is provided on the supporting pallet 18 makes it unnecessary to separate the conventional pallet from the internal combustion engine. Therefore, a pallet lifting device may be unnecessary.

In the above embodiment, as shown in FIG. 2, each of the vibration-isolating rubber members 26 is attached at an inclination angle of β = 60 °, and
Supporting the swinging pallet 19 by sandwiching it from the left and right with 20 is the most similar supporting method to the state where the internal combustion engine 5 is actually mounted on the vehicle body.

In the above embodiment, since the internal combustion engine 5 is not separated from the supporting pallet 18 and the swing pallet 19, the handling of the hose 50 on the internal combustion engine 5 side can be simplified,
It is possible to prevent a problem that the hose 50 is accidentally hooked on a peripheral device or the like.

In the above embodiment, the hose 50 on the internal combustion engine 5 side can be pressed into contact with the junction 49 by pulling the support pallet 18 to a predetermined position. It can be connected to the pipe 51 with one touch.

In the above embodiment, the internal combustion engine test apparatus 3 is arranged on the turntable 1, but it may be arranged in series on a plurality or a single fixed base.

[0035]

As described above, according to the first aspect of the present invention, since the internal combustion engine is set on the oscillating pallet, the vibration of the internal combustion engine is not restricted by the oscillating pallet. The vibration test of the internal combustion engine can be performed under a condition close to a state where the is mounted on the vehicle body.

As described above, by adopting the double pallet structure in which the swinging pallet for supporting the internal combustion engine is provided on the support pallet, it is not necessary to separate the internal combustion engine from the conventional pallet. Equipment may be unnecessary. Therefore, the structure of the internal combustion engine test apparatus can be simplified and the cost can be reduced. In addition, to the pull-in device
Therefore, pulling the support pallet onto the internal combustion engine support base
Support pallet on the internal combustion engine support base
At a predetermined position.

According to the second aspect of the present invention, the support pallet can be engaged with the drawing-in device by raising the locking body, and the positioning pallet is fitted into the positioning hole to move the swing pallet into the support pallet. Can be positioned on top. Therefore, the pulling-in of the support pallet onto the internal-combustion-engine support base by the retraction device and the positioning of the swinging pallet on the support pallet can be performed only once by raising and lowering the locking body.

[Brief description of the drawings]

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

FIG. 2 is a front view of the internal combustion engine test apparatus.

FIG. 3 is a partially cutaway front view of both pallets and a drawing device.

FIG. 4 is a longitudinal sectional view showing details of an engaging portion between the retracting device and the support pallet and a positioning portion of the swing pallet.

FIG. 5 is a side view of both pallets and a retracting device.

FIG. 6 is a plan view of the retracting device.

FIG. 7 is a plan view of a support pallet.

FIG. 8 is a schematic plan view showing an arrangement type of the internal combustion engine test apparatus.

FIG. 9 is a schematic side view of a conventional internal combustion engine test apparatus.

FIG. 10 is a schematic side view showing a method of supporting an internal combustion engine of a conventional internal combustion engine test apparatus.

[Explanation of symbols]

 3 Internal combustion engine test equipment 5 Internal combustion engine 7 Internal combustion engine support base 18 Support pallet 19 Swing pallet 26 Positioning pin (positioning body) 30 Locked hole 34 Positioning hole 36 Retraction device 40 Elevating block (Locking body)

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A 5-23094 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G01M 15/00

Claims (2)

(57) [Claims] An oscillating pallet for supporting an internal combustion engine is provided on a support pallet, an internal combustion engine support for mounting the support pallet is provided , and the support pallet is drawn into the internal combustion engine support.
An internal combustion engine test device, wherein the device is provided so as to be horizontally movable . 2. A swinging pallet for supporting an internal combustion engine is provided on a supporting pallet, a locked hole penetrating through upper and lower surfaces of the supporting pallet is formed, and the locked hole of the locked hole is formed on the swinging pallet side. A positioning hole having an open lower end located at an upper position is formed, and a retracting device for retracting the support pallet is provided on the internal combustion engine support base so as to be horizontally movable. The retracting device is vertically movable and inserted into the locked hole from below. An internal combustion engine test apparatus, comprising: a detachable locking body, and a positioning projection that is removably fitted into the positioning hole at an upper end of the locking body.