JPS63236940A - Power circulation type testing device - Google Patents

Abstract

PURPOSE:To test plural object gears which differ in speed ratio without replacing a dummy gear by controlling the torque in a power circulation system while making a difference in rotating speed (difference in total speed ratio) in the power circulation system. CONSTITUTION:The power circulation system consists of a gear device 1 to be tested, circulation gear devices 2 and 3, and a gear device 4 for torque loading. When plural gear devices to the tested which differ in speed ratio are tested, the test is conducted without replacing the dummy gear which matches with the tooth number ratio at the same time. In this case, the rotating speeds of the devices are set by a driving motor 7. Further, the total speed ratio (i) is not 1, so shafts S1 and S2 have a difference in rotating speed, but a torque load motor 6 rotates matching with the difference in rotating speed and supplies torque to the circulation system. Consequently, the plural gear devices which differ in speed ratio can be tested without replacing the dummy gear.

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention allows operation of a power circulation test device even if the total number of teeth ratio (total speed ratio) i in the circulation path is not 1. It concerns the mechanism that makes this possible.

The power circulation test device with this mechanism does not require the work of replacing the test gear device and the dummy gear device at the same time, and can replace multiple test gear devices with different speed ratios by simply replacing the test gear device. It can be used as a test device.

Additionally, the responsiveness of the torque of the power circulation system is increased, making it possible to simulate operation with fluctuating torque.

(Prior art) When a conventional power circulation test device is operated with a test gear device such as a transmission installed in the power circulation system, the number of teeth ratio (speed ratio) of the test gear device to be installed is A dummy gear with a gear ratio (speed ratio) of 1/i+ was installed at the same time.

The load torque within the power circulation system has been controlled by applying a phase difference to the shafts of the power circulation system using a planetary gear mechanism or the like.

In that case, the responsiveness of the torque within the power circulation system was poor and it was used only for constant torque operation.

(Problems to be Solved by the Invention) When testing a plurality of test gears with different speed ratios during operation of a test gear set installed in a power circulation test device, the gears of each test gear It is necessary to replace the dummy gear device corresponding to the numerical ratio at the same time, resulting in very poor work efficiency.

Furthermore, because the torque load mechanism of the power circulation system has poor responsiveness, it can only be used for constant torque operation.

(Means for Solving the Problems) The present invention was made to eliminate these drawbacks, and this can be explained with reference to Figure 1. The power circulation system consists of the following: Test gear device 1, Circulation gear device 2.3 , a torque load gear device 4.

The power circulation system of this device is the test gear device 1 and Zl to Z6.
．． A closed circuit is formed by Z6' to Z5', the rotational speed of the operating condition is given by the drive motor 7, and the torque load device electric motor 6 rotates (
Nc), gear device II5 gear Z9. Z8
The structure is such that torque can be applied to the circulation system via ゜Z7'. It should be noted that the torque load gear device 4 may also use a (one-stage planetary, two-stage parallel shaft, bevel gear), or the like.

(Function) When operating the power circulation test device, the rotation speed of the test gear device can be set by controlling the rotation of the drive motor 7.

In this case, when the gear ratios of each gear device constituting the power circulation test device are set as described above, the total speed ratio i≠1.0, so the rotation speed is between 81 and 32 of the torque load gear device 4. There will be a difference.

The rotational speed difference generated inside the power circulation system is caused by gear Z8. The torque load device electric motor 6 is rotated via the Z9 gear device 5.

Therefore, the rotor shaft rotation speed of the torque load device electric motor 6 is set by controlling the drive electric motor 7. The load torque of the test gear device can be generated by changing the rotation speed of the torque load device electric motor 6.

That is, when the rotational speed difference between the shafts S1 and 32 set by the drive motor 7 is NA, the torque load device electric motor 6 changes the rotation speed N, via each gear inherent in the torque load gear device 4.
is being rotated.

A torque is generated in the power circulation system by changing this N by ±Δn over time, and the torque is maintained by the torque load device electric motor 6.

The power required to maintain the test torque of the test gear device is proportional to the product of the rotational speed difference between Sl and 82 of the torque load gear device 4 and the load torque.

Further, the torque responsiveness of the power circulation system is related to the response speed of the rotational speed of the torque load electric motor, and since the responsiveness of the electric motor is generally very high, the torque responsiveness is significantly improved.

(Example) The number of teeth (Z i) and speed ratio (i
t) is set as follows, l where Z5. Z5' Number of sun gear teeth Z6. Z6' Number of planetary gear teeth Z7. Z7' Internal gear tooth number total speed ratio 1=tlxl/lD≠1.0.

In addition, gear Z7 is gear Z8. It is connected to the torque load device electric motor 6 via Z9 and the gear device 5.

(Effects of the Invention) It is possible to test a plurality of test gear devices having different speed ratios without setting the total speed ratio in the power circulation test device to i=1, and therefore there is no need to replace the dummy gear device. (Good workability) This device maintains the advantage of the power circulation test device, which is that a large amount of circulating power can be obtained with a small amount of power, while overcoming its disadvantage of poor responsiveness to torque fluctuations. configured.

[Brief explanation of drawings]

Figure 1 is a sectional view showing an actual example of the present invention (an example in which a two-stage planetary gear unit is used as a torque load gear unit) ■... Test gear unit 2... Circulating gear unit (Zl, Z2)
3. Circulation gear device (Z3.Z4) 4. Torque load gear device (2-stage planetary gear unit Z5.Z
6. Z7. Z5', Z6', Z7'; Rotation difference absorbing gear unit (Z8, Z9)) 5...Gear device 6...Electric motor for torque load device 7...Drive motor Sl, S2...Shaft patent applicant Osaka Arata Sano, Representative of Seizan Zoki Co., Ltd. - Figure 1

Claims (1)

[Scope of Claims] A power circulation system characterized by controlling the torque within the power circulation system while giving a difference in rotation speed (difference in total speed ratio) within the power circulation system in a power circulation test device. formula test equipment.