A test method for the effect of power matching on tooth vibration of gear transmission

Abstract

A test method for the influence of power matching on the tooth-beating vibration of a gear transmission device relates to a method for studying the tooth-beating vibration of a gear transmission device, in order to explore the problem of the influence of power matching on the tooth-beating vibration of a gear transmission device with two engines in parallel. The present invention uses a load dynamometer to provide load power to the gear transmission device, and tests whether the gear transmission device produces tooth-beating vibration by reasonably matching and adjusting the power relationship between the No. 1 drive power supply and the No. 2 drive power supply at the input end of the gear transmission device. The beneficial effect is that when the power matching between the No. 1 drive power supply and the No. 2 drive power supply is reasonable, the tooth-beating vibration of the gear transmission device will disappear, thereby achieving the purpose of exploring the influence of power matching on the tooth-beating vibration of the gear transmission device with two engines in parallel.

Description

Technical Field

[0001] The invention relates to a method for studying tooth-beating vibration of a gear transmission device. Background Art

[0002] The gear transmission system for parallel operation of two engines is used to integrate the output power of two power sources and transmit it to the propulsion shaft system to increase the output power of the propulsion system. Due to the existence of tooth side clearance in the gear transmission system, when the parallel operation is in progress, the gear pair at the driving end of the parallel operation will repeatedly knock in the tooth side clearance during the process of switching from negative meshing to positive meshing, resulting in severe noise and vibration. The tooth-slapping vibration of the gear transmission system will aggravate gear fatigue wear, easily causing cracks, tooth breakage and other faults, and even damage the power system, seriously threatening the safety and reliability of the system. The tooth-slapping vibration of the gear transmission system of parallel operation of two engines is greatly affected by the power matching factor of the input end drive source. Through experimental verification, the influence of power matching on tooth-slapping vibration can be determined, providing effective technical support for reducing the influence of tooth-slapping vibration. To explore the influence of power matching on tooth-slapping vibration of the gear transmission system of parallel operation of two engines, there is currently no experimental scheme that can effectively reproduce the actual tooth-slapping vibration phenomenon, and thus it is impossible to verify the influence of power matching on tooth-slapping vibration, and thus it is impossible to provide effective solutions to avoid tooth-slapping vibration in terms of power matching. Summary of the Invention

[0003] The purpose of the present invention is to explore the problem of the influence of power matching on the tooth-beating vibration of a gear transmission device of a dual-engine parallel operation, and propose a test method for the influence of power matching on the tooth-beating vibration of a gear transmission device.

[0004] The test method for the effect of power matching on tooth vibration of a gear transmission device described in the present invention is as follows:

[0005] A load dynamometer is used to provide load power to the gear transmission device, and by reasonably matching and adjusting the power relationship between the No. 1 drive power supply and the No. 2 drive power supply at the input end of the gear transmission device, the gear transmission device is tested to see whether it produces tooth-beating vibration.

[0006] Furthermore, under the premise of ensuring that the load power of the gear transmission device remains unchanged by using a load dynamometer, four sets of speed increase tests are performed on the gear transmission device:

[0007] The first test: the No. 1 drive power supply outputs power, and the No. 2 drive power supply has no output power;

[0008] The second group of tests: the output power of the No. 1 drive power supply and the output power of the No. 2 drive power supply, and the output power of the No. 2 drive power supply is much smaller than the output power of the No. 1 drive power supply;

[0009] The third test group: the output power of the No. 1 driving power supply and the output power of the No. 2 driving power supply, and the output power of the No. 2 driving power supply is slightly less than the output power of the No. 1 driving power supply;

[0010] The fourth test group: the output power of the No. 1 driving power supply, the output power of the No. 2 driving power supply, and the output power of the No. 2 driving power supply is equal to the output power of the No. 1 driving power supply.

[0011] Furthermore, in the second set of experiments, the output power of the No. 1 driving power supply is 50 times the output power of the No. 2 driving power supply.

[0012] Furthermore, in the third set of experiments, the output power of the No. 1 driving power supply is 1.5 times the output power of the No. 2 driving power supply.

[0013] The beneficial effects of the present invention are as follows: in the test method for the influence of power matching on the tooth-splitting vibration of the gear transmission device of dual-machine parallel operation, as the power of the driven side in the input end gradually approaches that of the driving side, the effect of dual-machine parallel operation is achieved; in this process, the gear pair connected to the driving source of the driven side at the input end gradually changes from the tooth back meshing state to the positive tooth surface meshing state, accompanied by the tooth-splitting vibration phenomenon, and finally when the power matching of the No. 1 driving power supply and the No. 2 driving power supply is reasonable, the tooth-splitting vibration of the gear transmission device will disappear, thereby achieving the purpose of exploring the influence of power matching on the tooth-splitting vibration of the gear transmission device of dual-machine parallel operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a test method for the influence of power matching on the tooth vibration of a gear transmission device described in the first specific embodiment, which is targeted at a gear transmission device with two engines in parallel. DETAILED DESCRIPTION

[0015] Specific implementation method 1: Combination Figure 1 This embodiment describes a test method for the effect of power matching on tooth vibration of a gear transmission device. The test method is as follows:

[0016] A load dynamometer 4 is used to provide load power to the gear transmission device 3, and by reasonably matching and adjusting the power relationship between the first drive power supply 1 and the second drive power supply 2 at the input end of the gear transmission device 3, whether the gear transmission device 3 produces tooth-beating vibration is tested.

[0017] In this embodiment, drive power source No. 1 maintains its driving function, while drive power source No. 2 gradually intervenes. As drive power source No. 2 gradually intervenes at the input end of gear transmission device 3, a dual-engine paralleling effect is achieved. During this process, the gear pair connected to the drive source on the input side to be driven gradually transitions from back tooth engagement to spur tooth engagement, accompanied by tooth-snapping vibration. Ultimately, when the power of the two drive sources is properly matched, the tooth-snapping vibration disappears. The load dynamometer 4 is the driving side.

[0018] In a preferred embodiment, under the premise of ensuring that the load power of the gear transmission device 3 remains unchanged by using a load dynamometer 4, four sets of speed increase tests are performed on the gear transmission device 3:

[0019] The first test: the first drive power supply 1 outputs power, and the second drive power supply 2 has no output power;

[0020] The second group of tests: the output power of the No. 1 driving power supply 1, the output power of the No. 2 driving power supply 2, and the output power of the No. 2 driving power supply 2 is much smaller than the output power of the No. 1 driving power supply 1;

[0021] The third group of tests: the output power of the No. 1 driving power supply 1, the output power of the No. 2 driving power supply 2, and the output power of the No. 2 driving power supply 2 is slightly less than the output power of the No. 1 driving power supply 1;

[0022] The fourth group of tests: the output power of the No. 1 driving power supply 1, the output power of the No. 2 driving power supply 2, and the output power of the No. 2 driving power supply 2 is equal to the output power of the No. 1 driving power supply 1.

[0023] In this embodiment, a reasonable test method is designed for the dual-engine drive gear transmission device to truly restore and reproduce the actual tooth-slapping vibration problem of the dual-engine drive gear transmission device; at the same time, the experimental test system is arranged in a targeted manner, which is conducive to analyzing the slapping vibration mechanism and also serves to verify the theoretical derivation; this test method is conducive to analyzing the influence of the driving source power combination factor on the tooth-slapping vibration of the dual-engine parallel gear transmission device, and provides strong support for solving the actual tooth-slapping vibration problem.

[0024] In a preferred embodiment, in the second set of experiments, the output power of the No. 1 driving power supply 1 is 50 times the output power of the No. 2 driving power supply 2.

[0025] In a preferred embodiment, in the third group of experiments, the output power of the No. 1 driving power supply 1 is 1.5 times the output power of the No. 2 driving power supply 2.

[0026] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A test method for the effect of power matching on tooth vibration of a gear transmission device, characterized in that: The test method is: A load dynamometer (4) is used to provide load power to the gear transmission device (3), and a power relationship between a first drive power source (1) and a second drive power source (2) at an input end of the gear transmission device (3) is reasonably matched and adjusted to test whether the gear transmission device (3) generates tooth-beating vibration. Under the premise of ensuring that the load power of the gear transmission device (3) remains unchanged by using a load dynamometer (4), four groups of speed increase tests are performed on the gear transmission device (3): The first group of tests: the first driving power supply (1) outputs power, and the second driving power supply (2) does not output power; The second group of tests: the output power of the No. 1 driving power supply (1), the output power of the No. 2 driving power supply (2), and the output power of the No. 2 driving power supply (2) is much smaller than the output power of the No. 1 driving power supply (1); The third group of tests: the output power of the No. 1 driving power supply (1), the output power of the No. 2 driving power supply (2), and the output power of the No. 2 driving power supply (2) is slightly less than the output power of the No. 1 driving power supply (1); The fourth group of experiments: the output power of the No. 1 driving power supply (1), the output power of the No. 2 driving power supply (2), and the output power of the No. 2 driving power supply (2) is equal to the output power of the No. 1 driving power supply (1).

2. The test method for the effect of power matching on gear transmission gear vibration according to claim 1, characterized in that: In the second group of experiments, the output power of the No. 1 driving power supply (1) is 50 times the output power of the No. 2 driving power supply (2).

3. The test method for the effect of power matching on tooth vibration of a gear transmission device according to claim 1, characterized in that: In the third group of experiments, the output power of the No. 1 driving power supply (1) is 1.5 times the output power of the No. 2 driving power supply (2).

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