JPH0334815B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a starting device for starting an internal combustion engine when performing a performance test of the engine, and more specifically, to a ring gear attached to the main shaft of the internal combustion engine via a drive plate. The present invention relates to a starting device for an internal combustion engine testing device that has a removable claw.

Conventional starting devices transmit the rotational driving force of the motor from the pawl to the main shaft via the ring gear with the pawl engaged with the ring gear to cause the main shaft to start rotation (motoring), and then engage the pawl. Remove,
After that, the internal combustion engine was operated and the expected performance tests were conducted. By the way, when the internal combustion engine is for a manual transmission vehicle, the flywheel is integrated into the ring gear, so the main shaft can be rotated smoothly and stably with less rotational fluctuations and torque fluctuations. In the case of automatic transmission vehicles, the flywheel is not integrated into the ring gear, so various fluctuations in the main shaft become large, resulting in variations in its rotation, making it impossible to conduct highly accurate performance tests. Conventionally, when testing internal combustion engines for automatic transmission vehicles, a flywheel was attached to the drive plate in advance, and the flywheel rotated integrally to prevent variations. At that time, installation is done by bolting the flywheel to the drive plate.
According to this, a large shearing force acts on the bolt during rotation, and the bolt easily breaks, causing the flywheel to fly off, resulting in a very dangerous situation. To solve this problem, it may be possible to use a large number of bolts, but this increases the time required for installation and removal, leading to a decrease in work efficiency. Furthermore, it is uneconomical to attach a flywheel to each internal combustion engine for an AT vehicle because the number of flywheels must be arranged accordingly.

The object of the present invention is to develop an internal combustion engine that can be used for both manual transmission and automatic transmission vehicles, and in the case of automatic transmission vehicles, can prevent variations without installing a flywheel to each internal combustion engine. The object of the present invention is to provide a starting device for engine testing equipment.

In order to achieve the above object, the starting device for an internal combustion engine of the present invention includes a boss member that is rotatable integrally fitted onto a rotating shaft that is interlocked with a motor, and this boss member is rotatably supported on a fixed part side. A flywheel is attached to the rotating shaft so that it can freely rotate only freely, and a clutch is interposed between the flywheel and the boss member, so that relative rotation and axial movement are provided to the rotating shaft in front of the flywheel. A freely movable member is fitted onto the outside of the flywheel, and a lever having a claw at the tip is swingably attached to the front surface of the flywheel via a support pin perpendicular to the rotating shaft. The movable member is connected to the movable member via a connecting pin parallel to the support pin so as to be relatively swingable, and a reciprocating drive device is provided for reciprocating the movable member in the axial direction.

According to the configuration of the present invention, the following effects can be expected. That is, the internal combustion engine is set so that the main prey is concentric with the rotating shaft, and the movable member is moved toward the flywheel by a reciprocating drive device with the claw positioned outside the ring gear. This allows the lever to swing around the support pin to engage the pawl with the ring gear. Therefore, by closing the clutch, the rotational force of the motor is transmitted from the rotating shaft to the main shaft via the boss member, clutch, flywheel, L-shaped lever, pawl, ring gear, and drive plate, and then The main shaft can be rotated starting. After the internal combustion engine is put into operation, the pawl can be separated from the ring gear by moving the movable member away from the flywheel using the reciprocating drive device in the case of an internal combustion engine for a manual transmission vehicle. It is possible to operate an internal combustion engine for a manual transmission vehicle in a state where it is disconnected from the starter device. Furthermore, in the case of an internal combustion engine for an automatic transmission vehicle, by opening the clutch with the pawl engaged with the ring gear, the flywheel can rotate integrally with the main shaft while separating the main shaft and the rotating shaft. As described above, the present invention can be used in both manual transmission and automatic transmission internal combustion engines, but in the internal combustion engine for automatic transmission vehicles, the flywheel, which is a part of the component, is used as the main shaft. It can rotate as one unit, allowing for consistent operation. Since there is only one flywheel, the overall cost can be reduced, and there is no need to install or remove flywheels for each internal combustion engine for AT vehicles, improving work efficiency and preventing danger. Can be done.

An embodiment of the present invention will be described below based on the drawings. Reference numeral 1 denotes a base frame, and a base plate 3 is disposed on the upper surface side of the base frame from the middle part to the front part with a plurality of anti-vibration rubbers 2 interposed therebetween. Reference numeral 4 denotes a motor disposed on the rear upper surface of the base frame 1, and its output shaft 5 is interlocked with a rotating shaft 9 via a one-way clutch 6, a tripole joint 7, and a flange 8. This rotating shaft 9 has, from the base end, a first medium diameter portion 9A, a large diameter screw portion 9B, a large diameter portion 9C, a second medium diameter portion 9D,
It is constructed by integrally forming a small diameter portion 9E, and both medium diameter portions 9A and 9D have the same diameter. A boss member 10 is externally fitted and screwed onto the large diameter screw portion 9B, and this boss member 10 is rotatably supported by a bearing body 12 via a bearing 11. The bearing body 12 is fixed to a frame 13 that is connected to the upper surface of the base plate 3. Large diameter portion 9C of the rotating shaft 9
The flywheel 1 is connected to the flywheel 1 via the bearing 14.
An electromagnetic clutch 16 is provided between the flywheel 15 and the boss member 10. This electromagnetic clutch 16
is fixed to the boss member 10 side, and the protrusion 1 is movable in and out.
7 is a recessed portion 1 in which a flywheel 15 is formed on the rear surface.
8, so that it can be inserted and removed freely. A movable member 19 that is relatively rotatable and movable in the axial direction is fitted onto the second medium diameter portion 9D of the rotating shaft 9.
That is, the movable member 19 includes an inner cylindrical body 20 externally fitted onto the second medium diameter portion 9D so as to be relatively rotatable and movable in the axial direction, and an externally fitted externally fitted to the inner cylindrical body 20 via a bearing 21 so as to be rotatable only. It consists of an outer cylindrical body 22, and its rear end can be freely fitted into a recess 23 formed on the front surface of the flywheel 15. Multiple locations on the front surface of the flywheel 15 (four locations in the embodiment)
A lever 25 having a claw 24 at the tip is arranged in the radial direction. This lever 25 is pivotally attached at its bent middle part to a support pin 26 which is perpendicular to the rotating shaft 9 and is attached to the flywheel 15 side, and is swingable at its base end. It is connected to the outer cylindrical body 22 through a connecting pin 27 parallel to the support pin 26 so as to be relatively swingable. A reciprocating drive device 28 that reciprocates the movable member 19 in the axial direction is provided. That is, the first
An inner cylindrical body 29 is fitted onto the medium diameter portion 9A so as to be relatively rotatable and movable in the axial direction, and an outer cylindrical body 30 is fitted onto the inner cylindrical body 29 through a bearing 31 so as to be relatively rotatable. Then, the ring body 32 that is loosely fitted onto the outer cylinder body 30 and the outer cylinder body 30 are connected to each other in a pair of right and left directions via pins 33 in the left and right direction so as to be able to freely swing relative to each other. The upper end of the outer cylindrical body 30 is attached to the bearing body 12 via a pin 34 parallel to the pin 33, so that the outer cylindrical body 30 is movable in the axial direction of the rotating shaft 9. A cylinder device 35 is attached to the frame 13, and its piston rod 36 and the lower end of the ring body 32 are connected via three links 37, 38, and 39.
Here, the links 37, 38, and 39 are such that when the cylinder device 35 is extended, the ring body 32 is connected to the bearing body 12.
It is arranged and constructed so that it swings toward the end and swings away when it contracts. Further, in order to regulate the amount of rocking, an adjustable stopper device 40 is provided between the link 39 and the frame 13. Linear grooves 41 and 42 are formed along the axis of the rotating shaft 9 at a plurality of locations (three locations in the embodiment) on the outer surfaces of the large-diameter screw portion 9B and the large-diameter portion 9C. ,4
A connecting plate 43 that fits in between the two inner cylinders 2
It connects between 0 and 29. The reciprocating drive device 28 is constituted by the above 29 to 43. 44A is an internal combustion engine for AT cars, 44B is an internal combustion engine for MT cars,
A drive plate 46 is attached to these main shafts 45, and a ring gear 47 is attached to the outer edge of the drive plate 46. Furthermore, MT
In the internal combustion engine 44B for a vehicle, a flywheel 48 with a clutch is attached to the outer surface of the drive plate 46. An elevating table 49 is provided at the base plate 3, and the elevating table 49 is raised and lowered by a cylinder device 50 attached to the base frame 1. A conveyor device 51 is provided on the lifting platform 49.
and a drive device 52 that drives the conveyor device 51 in forward and reverse directions.
B is handled via pallet 53. Further, a cylinder device 54 is arranged on the base plate 3, and a support tool 56 and a clamp tool 57 are arranged on the piston rod 55. Note that the flywheel 15, lever 25, and the like are covered by a cover 58 attached to the frame 13.

The action will be explained below.

The internal combustion engines 44A, 44B are placed on the pallet 53, and the conveyor device 51 is in the lowered position.
be carried above. Next, the elevating table 49 is raised by extension of the cylinder device 50, and the main shaft 45 is positioned concentrically with respect to the rotating shaft 9. Then, the conveyor device 51 is operated to move the internal combustion engines 44A, 44B toward the rotating shaft 9, and their end plates are brought into contact with the cover 58. At this time, as shown in the phantom line in FIG. 2 and the phantom line in FIG. 6, the ring gear 4
A claw 24 is located outside of 7. Next, the cylinder device 54 is operated, and the internal combustion engines 44A, 44B are activated.
is supported by a support tool 56 and clamped by a clamp tool 57. Then, by lowering the conveyor device 51, it can be set to a state ready for testing.
In this state, the cylinder device 35 of the reciprocating drive device 28 is contracted, and the links 37, 38, 39
The ring body 32 is swung toward the motor 4 around the pin 33 via. This rocking of the ring body 32 results in a pulling movement of the connecting plate 43 via the pin 34, the outer cylinder 30, and the inner cylinder 29, and further moves the outer cylinder 22 against the flywheel 15 via the inner cylinder 20. and move it inside. As a result, the connecting pin 27 approaches the flywheel 15, which causes the lever 25 to swing around the support pin 26, causing the second
The pawl 24 is engaged with the ring gear 47 as shown by the solid line in the figure and the solid line in FIG. Therefore, by driving the motor 4 with the electromagnetic clutch 16 closed and the protrusion 17 engaged with the recess 18, the rotational force of the motor 4 is transferred from the output shaft 5 to the one-way clutch 6. transmitted to the shaft 9,
Then, it is transmitted to the main shaft 45 via the boss member 10, electromagnetic clutch 16, flywheel 15, lever 25, pawl 24, ring gear 47, and drive plate 46, so that the main shaft 45 can start rotating. This allows the internal combustion engines 44A, 44B to be brought into operation. In the case of the internal combustion engine 44B for a manual transmission vehicle shown in FIG. 2, due to the opposite effect to the above,
That is, by moving the movable member 19 away from the flywheel 15 by the reciprocating drive device 28, the pawl 24 can be separated from the ring gear 47 as shown in the imaginary line, thereby creating a state where it is separated from the starter device. The internal combustion engine 44B for manual transmission vehicles can be operated and the desired tests can be performed. Further, in the case of an internal combustion engine 44A for an AT vehicle shown in FIG. The flywheel 15 is connected to the main shaft 45 while separating the
It can be rotated integrally with the machine, and the desired test can be carried out by operation. At this time, the rotation of the flywheel 15 is not transmitted to the rotating shaft 9 side due to the presence of the bearings 14 and 21.

After completing the tests as described above, the internal combustion engines 44A, 44B can be transported out together with the pallet 53 by performing the operation in reverse order to that described above.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is a partially cutaway side view, Fig. 2 is a vertical sectional side view of the main parts of an internal combustion engine for a manual transmission vehicle, and the upper right side of Fig. 3 is a partially cutaway side view. A-A arrow view in Figure 2, the rest is a B-B arrow view in the same figure, Figure 4 is a C-C arrow view in Figure 2,
The figure is a view taken along the line D-D, and FIG. 6 is a vertical sectional side view of the main parts of an internal combustion engine for an AT vehicle. 4... Motor, 9... Rotating shaft, 10... Boss member, 12... Bearing body, 13... Frame body, 15... Flywheel, 16... Electromagnetic clutch, 17...
Projection, 18... recess, 19... movable member, 20...
...Inner cylindrical body, 22...Outer cylindrical body, 24...Claw, 25...
... Lever, 26 ... Support pin, 27 ... Connection pin, 28 ... Reciprocating drive device, 29 ... Inner cylindrical body, 3
0... Outer cylinder body, 32... Ring body, 35... Cylinder device, 41... Concave groove, 42... Concave groove, 43...
...Connection plate, 44A...Internal combustion engine for AT vehicles, 44B
...Internal combustion engine for MT vehicles, 45...Main shaft, 46...
Drive plate, 47...Ring gear.

Claims (1)

[Claims] 1. A starting device for an internal combustion engine testing device, which has a claw that can be freely engaged and detached from a ring gear attached to the main shaft of the internal combustion engine via a drive plate,
A boss member that is rotatable integrally is fitted onto a rotating shaft that is linked to the motor, this boss member is rotatably supported on the fixed part side, and a flywheel is attached to the rotating shaft so that it can freely rotate only. and the boss member, and a clutch is interposed between the rotary shaft and the boss member,
A movable member capable of relative rotation and axial movement is fitted onto the outside, and a lever having a claw at the tip is swingably attached to the front surface of the flywheel via a support pin perpendicular to the rotating shaft, The proximal end of the lever and the movable member are connected through a connecting pin parallel to the support pin so as to be relatively swingable, and a reciprocating drive device is provided for reciprocating the movable member in the axial direction. A starting device in an internal combustion engine testing device featuring features.