JP4235963B2 - Motorcycle chain power test apparatus and motorcycle chain test method using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a motorcycle chain power test apparatus capable of performing a simulated running test of a chain in a state close to actual running, and a motorcycle chain test method using the same.
[0002]
[Prior art]
In addition to actual running, motorcycle chains may be subjected to a durability test using an endurance tester.
[0003]
A conventional durability tester is configured by combining a drive sprocket and a driven sprocket with a drive motor and an electric brake. Therefore, this one can wrap a test chain around a drive sprocket and a driven sprocket, rotate the chain via a drive motor, and actuate an electric brake to apply an arbitrary traveling load to the chain. .
[0004]
[Problems to be solved by the invention]
According to such a conventional technique, the electric brake can apply a continuous steady load to the chain, but cannot apply a traveling load that changes suddenly suddenly. There was a problem that the simulated running test in a state close to the actual running including was not possible.
[0005]
Accordingly, an object of the present invention is to perform a simulated running test of a chain in a state close to actual running by providing a brake that brakes a drive sprocket and a flywheel that is connected to a driven sprocket in view of the problems of the prior art. An object of the present invention is to provide a motorcycle chain power test apparatus and a motorcycle chain test method using the same.
[0006]
[Means for Solving the Problems]
In order to achieve this object, the first invention according to this application includes a drive sprocket for winding a chain, a driven sprocket, a drive motor for rotationally driving the drive sprocket, a brake for braking the drive sprocket, and a driven sprocket. The gist is to include a flywheel and an electric brake that are connected in order.
[0007]
A torque meter can be attached to each shaft of the drive sprocket and the driven sprocket.
[0008]
Further, the drive motor may drive the drive sprocket via a speed increasing gear box, and the driven sprocket may be connected to a flywheel and an electric brake via the speed increasing gear box.
[0009]
It should be noted that the brake and flywheel may be arranged at different positions.
[0010]
A clutch can be attached to the flywheel.
[0011]
The gist of the structure of the second invention is to perform a simulated running test of the chain using the power test apparatus according to the first invention and to record change data of the running speed and tension of the chain with respect to time.
[0012]
[Action]
According to the configuration of the first invention, the drive motor rotates the chain via the drive sprocket, and the electric brake can apply an arbitrary traveling load to the chain via the driven sprocket. On the other hand, the flywheel can simulate a load corresponding to the vehicle weight at the time of acceleration / deceleration via a drive motor, and can simulate an impact load at the time of downshifting by combining with a brake. In addition, the electric brake can use a combination of a generator and a power load, in addition to an arbitrary brake that can electrically set a braking force such as an electromagnetic brake, an eddy current brake, and a powder brake. .
[0013]
A torque meter attached to each shaft of the drive sprocket and the driven sprocket can detect the torque of each shaft, and can measure the tension applied to the traveling chain, that is, the traveling load in real time by calculation. The torque meter can detect the torque in the forward direction and the reverse direction of the shafts of the drive sprocket and the driven sprocket, respectively.
[0014]
The drive motor drives the drive sprocket via the gear box, thereby rotating the drive sprocket at an increased speed and allowing the chain to rotate at a high speed. In addition, by connecting the flywheel and electric brake to the driven sprocket via the gear box, the flywheel and electric brake are rotated at a higher speed than the driven sprocket, the flywheel is miniaturized, and the required braking force of the electric brake is increased. Can be small.
[0015]
Even if the positions of the brakes and flywheels are changed, an impact load similar to that described above can be applied to the chain.
[0016]
A flywheel provided with a clutch can be separated from a driven sprocket or a drive sprocket via the clutch, and a steady load can be applied to the chain by setting the traveling load of the chain to be equivalent to the load of the electric brake. Further, the chain can be connected to a driven sprocket or a drive sprocket via a clutch, and the traveling load of the chain can be stabilized.
[0017]
According to the configuration of the second aspect of the invention, it is possible to record change data of the chain traveling speed and tension with respect to time, and it is possible to accurately evaluate the performance of the chain with simulated running test data of the chain that is close to actual traveling. .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0019]
The motorcycle chain power test apparatus includes a drive sprocket 15 and a driven sprocket 21 around which a test chain C is wound, a drive motor 11, a brake 13, a flywheel 24, and an electric brake 25 (FIG. 1). .
[0020]
A drive sprocket 15 is connected to the drive motor 11 via a gearbox 12 for speed increase and a brake 13. The drive motor 11 is connected to the input side of the gear box 12, and the shaft 15 a of the drive sprocket 15 is connected to the output side of the gear box 12. The shaft 15a is rotatably supported via a bearing 15b, a torque meter 14 is mounted on the bearing 15b side, and a brake 13 is mounted on the gear box 12 side. Therefore, the drive motor 11 can rotationally drive the drive sprocket 15 via the gear box 12, and the brake 13 can brake the drive sprocket 15.
[0021]
The brake 13 is a disc brake mounted on the shaft 15a, for example. Further, the torque meter 14 is provided with a rotation detection sensor 15c for detecting the rotation speed of the shaft 15a. The drive motor 11, the gear box 12, and the bearing 15b are installed on a base frame (not shown).
[0022]
An electric brake 25 is connected to the driven sprocket 21 via a gearbox 23 for speed increase. The shaft 21 a of the driven sprocket 21 is rotatably supported via a bearing 21 b and is connected to the input side of the gear box 23. A torque meter 22 is attached to the shaft 21a, and a rotation detection sensor 21c is attached to the torque meter 22. On the output side of the gear box 23, a flywheel 24 is mounted via a clutch 24a, and an electric brake 25 is connected. Therefore, the flywheel 24 and the electric brake 25 are connected to the driven sprocket 21 via the gear box 23 in this order.
[0023]
The bearing 21b, the gear box 23, and the electric brake 25 are installed on a moving base 29. The moving base 29 can move laterally along guide rails 29a and 29a on a base frame (not shown). Therefore, the driven sprocket 21 can laterally move the moving base 29 along the guide rails 29a and 29a to adjust and set the distance L between the shafts with the drive sprocket 15. The movement base 29 can be locked at an arbitrary position via a lock mechanism (not shown).
[0024]
The outputs of the torque meters 14 and 22 and the rotation detection sensors 15c and 21c are individually connected to the arithmetic processing device 31 (FIG. 2), and the output of the arithmetic processing device 31 is connected to the recording device 32.
[0025]
Such a motorcycle chain power test apparatus is used as follows.
[0026]
When the test chain C is wound around the drive sprocket 15 and the driven sprocket 21, the flywheel 24 is disconnected from the output shaft of the gear box 23 via the clutch 24a, the electric brake 25 is operated, and the drive motor 11 is started. The drive motor 11 rotationally drives the drive sprocket 15 via the gear box 12 to rotate the chain C (in the direction of arrow K1 in FIG. 3), and drives the electric brake 25 via the driven sprocket 21 and the gear box 23. can do. Therefore, the electric brake 25 can give an arbitrary traveling load to the chain C.
[0027]
At this time, the torque meters 14 and 22 detect the torques T1 and T2 of the shafts 15a and 21a of the drive sprocket 15 and the driven sprocket 21, respectively, and send them to the arithmetic processing unit 31. However, the torques T1 and T2 have positive and negative signs according to the direction of twisting of the shafts 15a and 21a. On the other hand, the rotation detection sensors 15c and 21c detect the rotational speeds N1 and N2 of the shafts 15a and 21a, respectively, and send them to the arithmetic processing unit 31. It is assumed that the arithmetic processing unit 31 stores the radii r1 and r2 of the drive sprocket 15 and the driven sprocket 21 in advance.
[0028]
Therefore, the arithmetic processing unit 31 uses the torques T1 and T2 from the torque meters 14 and 22, the rotation speeds N1 and N2 from the rotation detection sensors 15c and 21c, the radii r1 and r2 of the driving sprocket 15 and the driven sprocket 21. The traveling load of the chain C, that is, the tension F = f (T1, T2) during the traveling of the chain C and the traveling speed v = 2πr1 N1 = 2πr2 N2 can be calculated in real time and recorded in the recording device 32. Here, f (T1, T2) represents a function of torques T1, T2.
[0029]
Further, when r1 N1 ≠ r2 N2 is detected, the arithmetic processing unit 31 regards that the chain C is broken and stops the drive motor 11 and operates the brake 13 to make an emergency stop.
[0030]
The power test apparatus can carry out a long-term durability test of the chain C while maintaining the rotation speed of the drive motor 11 and the braking force of the electric brake 25 constant (FIG. 4A). Moreover, a program test can be implemented by changing the rotation speed of the drive motor 11 in steps (FIG. 5B). However, in FIG. 4, the horizontal axis is a time axis indicating time t. In FIG. 4B, the braking force of the electric brake 25 may be kept constant regardless of the rotational speed of the drive motor 11, and the drive motor 11 may be changed and changed stepwise. .
[0031]
The power test apparatus connects the flywheel 24 to the output shaft of the gear box 23, that is, the driven sprocket 21 via the clutch 24a, and accelerates / decelerates the drive motor 11 to accelerate / decelerate the vehicle with respect to the chain C. A shocking tension F that simulates time can be applied (FIG. 4C). Further, the drive motor 11 is turned off while rotating the flywheel 24, the drive motor 11 is rotated by inertia, and the brake 13 is suddenly operated, so that the chain C is shifted down from, for example, the second speed to the first speed. It is possible to apply a more shocking tension F that simulates the situation (see the steep peak of the tension F appearing on the right side of FIG. 3C).
[0032]
That is, the power test apparatus can record the change data of the traveling speed v and tension F of the chain C with respect to time, and obtain the evaluation data of the chain C.
[0033]
Note that when the clutch is interposed between the gear box 12 and the brake 13 and the brake 13 is operated, it is preferable to mechanically disconnect the gear box 12 and the drive motor 11 from the drive sprocket 15. Moreover, in FIG. 1, you may mutually replace the arrangement | positioning position of the brake 13 and the flywheel 24 mutually. However, the flywheel 24 at this time is connected to the shaft 15a of the drive sprocket 15 via the clutch 24a.
[0034]
【The invention's effect】
As described above, according to the first invention of this application, the drive motor, the electric brake, the brake for braking the drive sprocket, and the flywheel connected to the driven sprocket are provided. The brake can apply a constant travel load to the chain, and the flywheel and brake can apply a shocking travel load that simulates acceleration / deceleration and shift down, so it is close to actual travel. There is an excellent effect that a simulated running test of the chain can be performed depending on the state.
[0035]
According to the second aspect of the present invention, it is possible to record change data of the traveling speed and tension of the chain, and obtain an accurate evaluation material of the chain by a simulated traveling test.
[Brief description of the drawings]
[Fig. 1] Overall configuration schematic plan view [Fig. 2] Main block system block diagram [Fig. 3] Operation explanation diagram [Fig. 4] Operation explanation diagram [Description of symbols]
C ... chain v ... traveling speed F ... tension 11 ... drive motor 13 ... brake 15 ... drive sprocket 21 ... driven sprocket 24 ... flywheel 24a ... clutch 25 ... electric brakes 12, 23 ... gear box 14, 22 ... torque meter 15a , 21a ... axis

Claims (6)

A motorcycle comprising a drive sprocket for winding a chain, a driven sprocket, a drive motor for rotationally driving the drive sprocket, a brake for braking the drive sprocket, a flywheel connected in sequence to the driven sprocket, and an electric brake Chain power test equipment. The motorcycle chain power test apparatus according to claim 1, wherein a torque meter is attached to each of the drive sprocket and the driven sprocket. The drive motor drives the drive sprocket via a speed increasing gear box, and the driven sprocket is connected to the flywheel and the electric brake via a speed increasing gear box. A power test apparatus for a motorcycle chain according to claim 1 or 2. 4. The motorcycle chain power test apparatus according to claim 1, wherein the brakes and the flywheels are arranged at different positions. 5. The motorcycle chain power test apparatus according to any one of claims 1 to 4, wherein a clutch is attached to the flywheel. 6. A motorcycle chain characterized by performing a simulated running test of a chain using the power test device according to any one of claims 1 to 5 and recording change data of the running speed and tension of the chain with respect to time. Test method.

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