JPH031804Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention can be used, for example, in an automobile assembly factory.
The present invention relates to a fan cover device for an internal combustion engine testing device that performs a performance test on an internal combustion engine before it is assembled into a vehicle body.

BACKGROUND OF THE INVENTION In internal combustion engine testing equipment, the internal combustion engine is placed on a pallet, the pallet and the pallet are fed into a testing device, and after a predetermined performance test is performed, the engine is taken out along with the pallet. Incidentally, the mounting position of the internal combustion engine relative to the automobile differs depending on the type of vehicle, such as whether it is vertical or inclined. Therefore, when testing an internal combustion engine, the engine must be vertically or inclined. And during the test (while driving)
In order to protect workers from the exposed fan on the internal combustion engine side that rotates at high speed,
In addition, a fan cover is installed on the test equipment side to prevent wind from scattering. Conventional fan covers are arranged to swing toward and away from the fan, and the swinging is performed by a drive device such as a cylinder device.

Problems to be Solved by the Invention According to the above-mentioned conventional type, since a drive device for swinging is required, the surrounding area including the operating cable etc. becomes complicated, and the control is also complicated.

Means for Solving the Problems In order to solve the above problems, the fan cover device for an internal combustion engine testing device according to the present invention has a base frame with a
A support base forming a mounting portion for a pallet for supporting an internal combustion engine is disposed rotatably around an axis in the longitudinal direction, and a rotation drive device for rotating the support base is provided, and the internal combustion engine is mounted on the side of the base frame. A fan cover that can swing toward and away from the fan is provided, and an interlocking device is provided to link the rotational movement of the support base and the swinging movement of the fan cover.

According to the configuration of the present invention, the interlocking device is set so that as the support base tilts and swings, the fan cover swings closer to each other, so that when the support base is tilted to a predetermined posture, the fan cover is moved toward the internal combustion engine. can be automatically positioned close to the fan.

Embodiment An embodiment of the present invention will be described below based on the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a carry-in route for a pallet 3 on which an internal combustion engine 2 is placed, and includes a carry-in conveyor 4 and a supply device 5 with a turntable disposed outside the terminal end of this carry-in conveyor 4. and a carry-in device 6 to which the turntable of the supply device 5 can be freely connected. The rotary table 7 has a plurality of internal combustion engine testing devices 8 radially arranged to receive the pallets 3 from the carry-in route 1. Reference numeral 9 denotes an unloading route, in which the internal combustion engine testing apparatus 8
An unloading device 10 that can freely accept pallets 3 from
and a turntable-equipped discharge device 11 that can be freely connected to this discharge device 10 and has a turntable.
It is formed by an output conveyor 12 connected to the discharge device 11 and facing in the same direction as the input conveyor 4. The test device 8 is shown in FIGS. 2 to 5.
As shown in the figure, the base frame 13 is fixed on the rotary table 7, and a movable base 16 is attached to the base frame 13 via a rotation guide device 14, which is rotatable around an axis 15 in the longitudinal direction. That is, a pair of front and rear arcuate rails 17 are attached to the base frame 13 via support members 18, and these arcuate rails 17 are arranged in a bowl shape with a radius of curvature centered on the longitudinal axis 15. The movable platform 16 has a pair of left and right idle wheels 19 at its front and rear ends, respectively, and is placed on both arcuate rails 17 via these idle wheels 19. Further, the movable base 16 is provided with a lifting prevention ring 20 that can freely come into contact with the lower surface of the arcuate rail 17 at a position opposite to the idler wheel 19 .
For example, a cylinder-type rotation drive device 21 is disposed between the lower surface of the movable table 16 and the base frame 13. 22 indicates a locking bracket. A plurality of vibration isolators 23 are mounted on the movable table 16.
A support stand 24 is provided via the support base 24. The front part of this support stand 24 has an upper surface that supports the pallet 3 placement part 2.
5 is formed, and guide plates 26 are erected on both sides of the mounting section 25. Further, a starting device 27 is provided at the rear of the support base 24. That is, the support stand 24
A pair of left and right guide bars 28 are disposed on the upper surface side. A motor 29 is movable while being guided by the guide bar 28 via a guide member 30, and its movement is performed by a cylinder device 32 provided between a bracket 31 from the motor 29 and the support base 24. . An output shaft 33 is protruded from the front surface of the motor 29 along the direction of movement of the motor 29.
This output shaft 33 is provided with a power transmission section 35 that can be freely interlocked with the main shaft 34 of the internal combustion engine 2 . That is, the internal combustion engine 2 has a flywheel 36 on a main shaft (crankshaft) 34, an alignment hole 37 formed in the main shaft 34, and a plurality of engagement pins 38 on the front surface of the flywheel 36. The power transmission section 35 includes a disc 3 integrated with the front end of the output shaft 33.
9, and an engagement hole 40 formed in this disc 39 and into which the engagement pin 38 can be freely engaged. Incidentally, a positioning protrusion 41 that can be freely fitted into and removed from the positioning hole 37 is protruded from the front end of the output shaft 33 .
At the front and rear ends of the pallet 3, a pair of left and right supports 42 for supporting the internal combustion engine 2 are erected, and locking protrusions 43 are protruded from the upper surface of these supports 42. , can be freely fitted into a hole 44 formed on the lower surface of the internal combustion engine 2 according to the processing standard. 4
Reference numeral 5 indicates a forward limit stopper, and reference numeral 46 indicates a fan of the internal combustion engine 2. A fan cover 47 that can swing toward and away from the fan 46 is provided on the base frame 13 side, and an interlocking device 48 that links the rotation of the support base 24 and the swing of the fan cover 47. is provided. That is, as shown in FIGS. 3 to 6, there is a holding member 49 integral with the base frame 13 side.
A fixed shaft 50 is provided upright, and a cylindrical rotating body 52 is externally fitted onto the upper part of the fixed shaft 50 via a bearing 51. A fixture 53 is attached to the upper end of this cylindrical rotating body 52.
A cylinder shaft 54 is fixed through the cylinder shaft 54, and a lower plate member 55 is externally fitted and fixed to the upper end of the cylinder shaft 54. A rod-shaped vertical shaft 56 is fitted within the cylindrical shaft 54 so as to be relatively rotatable around a vertical axis 57, and an upper plate 58 is externally fitted and fixed to the upper end of the vertical shaft 56. Both plate members 55 and 58 are in surface contact with each other, and have recesses 59 and 60 formed on both sides. a spring 63 that biases the fit;
64 is provided on the opposite plate. A main shaft 66 is erected from the upper surface of the upper plate 58 via a seat plate 65, and the fan cover 47 is attached to the support shaft 66 via an attachment member 67. A rod rod 68 is connected to the side from the cylindrical shaft 54, and the end of a rod 70 connected to the free end of the rod rod 68 via a universal joint 69 is attached to a bracket mounted on the movable table 16. 71 via a pin 72.

The action will be explained below. The pallet 3 supporting the internal combustion engine 2 is transferred to the testing device 8 by the carrying device 6.
The pallet 3 is placed on the mounting portion 25 of the support stand 24, where the pallet 3 is positioned and fixed. At this time, the movable base 16 is in a horizontal position, and therefore the internal combustion engine 2 supported by each support 42 is in a vertical position. Further, the positioning protrusion 41 on the output shaft 33 side faces the positioning hole 37. After setting as described above, the cylinder device 32
The starter 27 is moved toward the front end by the operation. Then, first, the alignment protrusion 41 fits into the alignment hole 37 to perform alignment, and then the engagement pin 38 engages with the engagement hole 40, so that the output shaft 33 and the main shaft 34 are interlocked. . During this engagement, the output shaft 33 is rotated as necessary, and the positional deviation between the engagement hole 40 and the engagement pin 38 in the circumferential direction is corrected. As shown by the solid line in FIG. 4, when the movable base 16 is in a horizontal position, the internal combustion engine 2 is in a vertical position. If this internal combustion engine 2 is installed in a vehicle in a vertical position, it can be left as is.
If the tower is mounted in an inclined position, the internal combustion engine 2 is reset to match the inclined position. That is, the rotary drive device 21 is operated to move the movable base 16. This movement is rotational movement around the longitudinal axis 15 because the idler wheel 19 is guided by the arcuate rail 17. The support base 24 rotates together with the movable base 16, and the starter 27 on the support base 24 and the internal combustion engine 2 also rotate around the longitudinal axis 15. internal combustion engine 2
After rotating by a predetermined angle O, the tilted posture is fixed. Water supply hoses, fuel hoses, exhaust hoses, etc. are then connected. Thereafter, the internal combustion engine 2 is tested, and is first started and operated. That is, when the motor 29 is rotationally driven, the rotation of the output shaft 33 is transmitted to the main shaft 34 via the power transmission section 35 and the flywheel 36, and the main shaft 34 is rotated to perform a starting operation. After the internal combustion engine 2 shifts to normal operation, the output shaft 33 and the like are moved backward.
The internal combustion engine 2, which has been subjected to the intended test with the rotation of the rotary table 7, makes almost one revolution and faces the carry-out device 10, is taken out by the carry-out device 10, and is then transferred to the next process via the carry-out path 9. and is transported.

As mentioned above, when the movable base 16 and the like are in a horizontal position, the solid lines in FIGS. 3, 4, and 6,
Also, as shown by the hypothetical line in Figure 5, the rod 70
Since the fan cover 47 is pushed outward, the fan cover 47 swings outward around the vertical axis 57, and the fan 4
It is far away from 6. Therefore, carrying in via the carrying-in device 6 and carrying out by the carrying-out device 10 can be carried out without being obstructed by the fan cover 47. When the internal combustion engine 2 is tilted by rotating the movable table 16 as shown in the imaginary line in FIG. is rotated around the vertical axis 57. This rotation of the cylinder shaft 54 is caused by the rotation of the lower plate body 5.
5. The force is transmitted to the main shaft 66 through the engagement between the recesses 59 and 60 and the balls 61 and 62, and the upper plate 58. Due to the rotation of this support shaft 66, the mounting member 67
The fan cover 47 is swung around the vertical axis 57 via the fan cover 47 to approach the fan 46 and cover the fan 46 as shown by the imaginary line in FIG. 4 and the solid line in FIG. Note that when returning from the tilted position to the horizontal position, the fan cover 47 is
can be automatically moved apart.

As described above, when the fan cover 47 is moved toward and away from the rotary movement of the movable table 16 side, the fan cover 47 collides with another object (person, object) and the movement toward and away from the movable base 16 is prevented. When the balls 61 and 62 are moved back against the springs 63 and 64, sliding contact occurs between the two plates 55 and 58, and as a result, although the movable base 16 side operates, the fan cover 47
operation can be stopped. Thereafter, the fan cover 47 can be manually returned to the first interlocking opening position. This also means that when testing is performed in a vertical position, only the fan cover 47 can be manually moved toward and away from the fan cover 47.

Effects of the Invention According to the present invention having the above configuration, by setting the interlocking device so that the fan cover swings closer as the support base tilts and swings, when the support base is tilted to a predetermined posture, the fan cover The fan of the internal combustion engine can be automatically positioned close to the fan of the internal combustion engine, thereby eliminating the need for a swing drive device and simplifying the surroundings and control.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view, Fig. 2 is a side view of the test equipment section, Fig. 3 is a partially cutaway side view of the same, Fig. 4 is a longitudinal sectional front view of the same, and Fig. 4 is a side view of the test equipment section. FIG. 5 is a partially cutaway plan view of the same part, and FIG. 6 is a longitudinal sectional front view of the main part. 2... Internal combustion engine, 3... Pallet, 7... Rotating table, 8... Internal combustion engine testing device, 13... Base frame, 14... Rotation guide device, 15... Front-rear axis, 16... Movable Base, 17... arc rail,
19... Idle wheel, 21... Rotation drive device, 24...
...Support stand, 25 ... Placement section, 27 ... Starter,
29...Motor, 32...Cylinder device, 33...
... Output shaft, 34 ... Main shaft, 35 ... Power transmission section,
36...flywheel, 46...fan, 47
...Fan cover, 48...Interlocking device, 54...
Cylindrical shaft, 55... Lower plate body, 56... Vertical axis, 57...
... Vertical axis, 58 ... Upper plate, 59, 60 ... Recess, 61, 62 ... Ball, 66 ... Support shaft, 70
...Lotsud.

Claims (1)

[Scope of utility model registration request] A support stand formed with a mounting part for a pallet for supporting an internal combustion engine is disposed on the base frame so as to be rotatable around an axis in the longitudinal direction, and a rotational drive device for rotating this support stand is provided, and the base frame side for an internal combustion engine testing device, characterized in that a fan cover that can swing toward and away from the fan of the internal combustion engine is provided, and an interlocking device that links the rotational movement of the support stand side and the swinging movement of the fan cover. Fan cover device.