Analog loading test device of walking chassis speed changing box of combine harvester

Abstract

The invention discloses an analog loading test device of a walking chassis speed changing box of a combine harvester, comprising an installation base, a drive part, a speed changing box fixing device, a loading part, a vibration measuring system, a noise measuring system, a box body temperature measuring system, a lubricating oil temperature measuring system and a central control cabinet. According to the invention, a speed governing motor is used as power, two magnetic powder brakes independently apply working loads, the whole system is provided with three sets of torsion rotating speed sensors, one set of vibration detection system, one set of noise detection system and one set of box body temperature and oil temperature system, and all detection signals are transmitted to an industrial control machine of the central control cabinet and displayed in real time and recorded and stored; control signals of the magnetic powder brakes are provided by an analog output card and are programmed in control software; and two paths of output voltages are respectively controlled by using a function, thus simulation of a complex working condition can be realized, and a fatigue test can be carried out.

Description

technical field

[0001] The invention relates to a simulated loading test device for a walking chassis gearbox of a combine harvester, which is mainly used for performing indoor simulated loading tests on the traveling chassis gearbox of a combine harvester and measuring the vibration, noise, bearing temperature and lubricating oil temperature of the gearbox. Background technique

[0002] The combine harvester walking chassis gearbox is an important working part of the combine harvester. It is mainly used to decelerate the power output by the engine and distribute it to the driving wheels, so as to realize the actions of the harvester such as forward, backward, turning, and speed change. The gearbox simulation loading test device can simulate the load of the gearbox of the combine harvester under the working conditions of field harvesting, land transfer, road walking, etc., so as to test the working performance and reliability. It is an important tool for gearbox manufacturers...

Examples

Embodiment Construction

[0014] For device layout and transmission, please refer to figure 1 , figure 2 . Except for the speed-regulating drive motor 1 and the central control cabinet 23, all other working parts and transmission parts are fixed on the installation base 22 through the support. The drive pulley B8 is connected to the drive shaft 9, and the central control cabinet is the display controller of the test device, which is connected to the speed-regulating drive motor 1, magnetic powder brake 12 and various sensors through signal lines to provide control signals and display the collected data. During the test, first turn on the drive motor controller in the central control cabinet to make the speed-regulating drive motor rotate and output power. The torque speed sensor 5 and the shaft coupling A3 are transmitted to the gearbox 21 to be tested, wherein the sensor can measure the speed and torque of the driving power to help determine whether the test requirements are met. If the requirement...

technical field

[0001] The invention relates to a simulated loading test device for a walking chassis gearbox of a combine harvester, which is mainly used for performing indoor simulated loading tests on the traveling chassis gearbox of a combine harvester and measuring the vibration, noise, bearing temperature and lubricating oil temperature of the gearbox. Background technique

[0002] The combine harvester walking chassis gearbox is an important working part of the combine harvester. It is mainly used to decelerate the power output by the engine and distribute it to the driving wheels, so as to realize the actions of the harvester such as forward, backward, turning, and speed change. The gearbox simulation loading test device can simulate the load of the gearbox of the combine harvester under the working conditions of field harvesting, land transfer, road walking, etc., so as to test the working performance and reliability. It is an important tool for gearbox manufacturers...

Examples

Embodiment Construction

[0014] For device layout and transmission, please refer to figure 1 , figure 2 . Except for the speed-regulating drive motor 1 and the central control cabinet 23, all other working parts and transmission parts are fixed on the installation base 22 through the support. The drive pulley B8 is connected to the drive shaft 9, and the central control cabinet is the display controller of the test device, which is connected to the speed-regulating drive motor 1, magnetic powder brake 12 and various sensors through signal lines to provide control signals and display the collected data. During the test, first turn on the drive motor controller in the central control cabinet to make the speed-regulating drive motor rotate and output power. The torque speed sensor 5 and the shaft coupling A3 are transmitted to the gearbox 21 to be tested, wherein the sensor can measure the speed and torque of the driving power to help determine whether the test requirements are met. If the requirement...

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