CN213657827U

CN213657827U - Gear clearance dynamic measurement system of gear box

Info

Publication number: CN213657827U
Application number: CN202023267047.4U
Authority: CN
Inventors: 许涛; 张赟; 林森
Original assignee: Gif Research Center China Co ltd
Current assignee: Gif Research Center China Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-07-09
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a gear box gear clearance dynamic measurement system, its characterized in that: the device comprises an output end dynamometer and an input end dynamometer which are respectively arranged at two ends of a gear box; a first angle encoder is arranged between the output end of the gear box and the output end dynamometer, and a second angle encoder is arranged between the input end of the gear box and the input end dynamometer; the first angle encoder and the second angle encoder are connected to a data acquisition front end. The utility model discloses gear box gear clearance dynamic measurement system, simple structure, gear clearance measurement in the applicable gear box dynamic process, reliability and degree of accuracy are high, have stronger practicality and better application prospect.

Description

Gear clearance dynamic measurement system of gear box

Technical Field

The utility model belongs to the technical field of the car, more specifically say, relate to a gear box gear clearance dynamic measurement system.

Background

Along with the continuous development of the current automobile technology, the requirements on the noise, vibration and harshness NVH quality of a gearbox are higher and higher, and in the manufacturing process of the automobile gearbox, if the design and manufacturing precision of the gear is insufficient and the influence of the installation process is caused, the gap between gear pairs of gears is larger, so that the gear knocking noise of the gear is caused, the service life of the gearbox is reduced, and therefore, the measurement of the gap between the gears of the gearbox is more important in order to ensure the manufacturing precision of the gear. In the prior art, gear clearance is mostly staticized measurement, and reliability and accuracy are poor, and waste time and energy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that prior art exists, provide a simple structure, gear clearance is measured among applicable gear box dynamic process, and reliability and the high gear box gear clearance dynamic measurement system of the degree of accuracy.

In order to realize the purpose, the utility model discloses the technical scheme who takes does: the gear box gear clearance dynamic measurement system is characterized in that: the device comprises an output end dynamometer and an input end dynamometer which are respectively arranged at two ends of a gear box; a first angle encoder is arranged between the output end of the gear box and the output end dynamometer, and a second angle encoder is arranged between the input end of the gear box and the input end dynamometer; the first angle encoder and the second angle encoder are connected to a data acquisition front end.

In order to make the above technical solution more detailed and concrete, the present invention further provides the following preferable technical solution to obtain satisfactory practical effect:

and the data acquisition front end acquires signals of the angle encoder and outputs the signals to the data acquisition computer.

The output end of the output end dynamometer is connected with a first torque sensor, the output end of the gear box is connected with a half shaft, one end of the first angle encoder is connected with the half shaft, and the other end of the first angle encoder is connected to the first torque sensor through a first coupler.

And the connecting shaft of the first angle encoder is rotatably supported through the output end bearing seat.

The output end of the input end dynamometer is connected with a second torque sensor, one end of a second angle encoder is connected to an input end bearing seat of the gear box, the other end of the second angle encoder is connected to the second torque sensor through a second coupler, and a second tool flange connected to the second coupler is arranged at the shaft end of the second angle encoder.

The dynamic gear clearance measuring system of the gear box is provided with a test bed base.

The output end dynamometer and the input end dynamometer are arranged on the test bed base, and the gear box is supported on the test bed base through a gear box fixing frame.

The first angle encoder is supported on the test bed base by a first angle encoder base.

The second angle encoder is supported on the test bed base through a second angle encoder base.

Compared with the prior art, the utility model, have following advantage: the utility model discloses gear box gear clearance dynamic measurement system, simple structure, gear clearance measurement in the applicable gear box dynamic process, reliability and degree of accuracy are high, have stronger practicality and better application prospect.

Drawings

The contents of the drawings and the reference numerals in the drawings of the present specification will be briefly described as follows:

FIG. 1 is a schematic structural view of a dynamic measurement system for gear clearance of a gear box according to the present invention;

labeled as: 1. an output end dynamometer; 2. a first torque sensor; 3. a first coupling; 4. a first tooling flange; 5. an output end bearing seat; 6. a first angle encoder; 7. a half shaft; 8. a gear case; 9. a gear box fixing frame; 10. an input end bearing seat; 11. a second angle encoder; 12. a second tooling flange; 13. a second coupling; 14. a second torque sensor; 15. inputting a dynamometer; 16. a test bed base; 17. a first angular encoder base; 18. a data acquisition front end; 19. a second angular encoder base; 20. and a data acquisition computer.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The utility model discloses a gear box gear clearance dynamic measurement system, which comprises an output end dynamometer 1 and an input end dynamometer 15 which are respectively arranged at two ends of a gear box; a first angle encoder 6 is arranged between the output end of the gear box 8 and the output end dynamometer 1, and a second angle encoder 11 is arranged between the input end of the gear box and the input end dynamometer 15; the first angle encoder 6 and the second angle encoder 11 are connected to a data acquisition front end 18, and the data acquisition front end 18 acquires and outputs signals of the angle encoders to a data acquisition computer 20.

In the utility model, the measuring system can be used for dynamic measurement of gears of the gear box, and the measured quantity required by the test is the angle information of the input end of the gear box and is measured by the second angle encoder 11; the gearbox output end angle information is measured by a first angle encoder 6. The signals of the angle encoder are collected by the data collection front end and output to the data collection computer 20.

The utility model discloses in, this measurement system passes through 1 control torque of input dynamometer, through 15 control rotational speeds of output dynamometer.

The utility model discloses in, be connected with first torque sensor 2 at 1 output of output dynamometer, the output of gear box 8 is connected with semi-axis 7, semi-axis 7 is connected to 6 one ends of first angle encoder, and the other end is connected to first torque sensor 2 through first shaft coupling 3, and the axle head of first angle encoder 6 is equipped with and is connected to first frock flange 4 on the first shaft coupling 3. The connecting shaft of the first angle encoder 6 is rotatably supported by the output-end bearing block 5.

The utility model discloses in, be connected with second torque sensor 14 at input dynamometer 15 output, on 11 one end of second angle encoder was connected to gear box 8's input bearing frame 10, the other end was connected to second torque sensor 14 through second shaft coupling 13, and the axle head of second angle encoder 11 is equipped with second frock flange 12 that is connected to on second shaft coupling 13.

The utility model discloses gear box gear clearance dynamic measurement system still is equipped with test bench base 16, and output dynamometer 1 and input dynamometer 15 are arranged on test bench base 16, and gear box 8 is supported on test bench base 16 through gear box mount 9; the first angular encoder 6 is supported on the test bed base 16 by a first angular encoder base 17, and the second angular encoder 11 is supported on the test bed base 16 by a second angular encoder base 19.

The utility model discloses gear box gear clearance dynamic measurement system, this test method reaches gear box gear clearance through the control dynamometer machine and measures moment of torsion and the rotational speed that needs, this experiment is measured the angular signal by test piece input and output respectively under this operating mode through two angle encoder, the angular signal of first angle encoder 6 subtracts the angular signal of second angle encoder 11 after multiplying with the gear box drive ratio, define this angle difference theta, can obtain the dynamic angle difference under this operating mode this moment and be theta₁(ii) a After the data acquisition of the test working condition is successful, the torque controlled by the dynamometer at the input end is reversed, the meshing surface of the gear is changed at the moment, the angle signal data is acquired after the rotating speed and the torque are stable, and the dynamic angle difference theta under the working condition can be obtained at the moment₂，Θ₂Subtract theta₁The absolute value of (A) is the test result. The data acquisition front end 18 acquires data and outputs the data to the data acquisition computer 20, and the data acquisition computer 20 sets the calculation process to calculate and output the measured gear clearance value according to the calculation mode. And acquiring three groups of data after the rotating speed and the torque are stable to obtain three values, checking the validity of the data after the test working condition is finished, effectively using the data, calculating an average value, and otherwise, re-testing.

The utility modelA dynamic gear clearance measuring system of a gear box is characterized in that torque and rotating speed required by gear clearance measurement of the gear box are achieved by controlling a dynamometer, the torque is controlled at an input end, the rotating speed is controlled at an output end, the rotating speed is controlled at 200rpm, the torque is 20Nm, three groups of data are collected after the rotating speed and the torque are stable, and dynamic angle difference theta under the working condition is calculated₁(ii) a After the data acquisition of the test working condition is successful, the torque controlled by the dynamometer at the input end is reversed, the rotating speed is 200rpm, the torque is-20 Nm, the meshing surface of the gear is changed at the moment, three groups of data are acquired after the rotating speed and the torque are stable, and the dynamic angle difference theta under the working condition can be obtained at the moment₂，Θ₂Subtract theta₁The absolute value of (A) is the test result.

The utility model discloses gear box gear clearance dynamic measurement system, simple structure, gear clearance measurement in the applicable gear box dynamic process, reliability and degree of accuracy are high, have stronger practicality and better application prospect.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention has been described above with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and various insubstantial improvements or direct applications to other applications can be achieved by using the method and technical solution of the present invention, which all fall within the protection scope of the present invention.

Claims

1. The utility model provides a gear box gear clearance dynamic measurement system which characterized in that: the device comprises an output end dynamometer and an input end dynamometer which are respectively arranged at two ends of a gear box; a first angle encoder is arranged between the output end of the gear box and the output end dynamometer, and a second angle encoder is arranged between the input end of the gear box and the input end dynamometer; the first angle encoder and the second angle encoder are connected to a data acquisition front end.

2. A gearbox gear clearance dynamic measurement system as defined in claim 1, wherein: and the data acquisition front end acquires signals of the angle encoder and outputs the signals to the data acquisition computer.

3. A gearbox gear clearance dynamic measurement system as defined in claim 2, wherein: the output end of the output end dynamometer is connected with a first torque sensor, the output end of the gear box is connected with a half shaft, one end of the first angle encoder is connected with the half shaft, and the other end of the first angle encoder is connected to the first torque sensor through a first coupler.

4. A gearbox gear clearance dynamic measurement system as defined in claim 3, wherein: and the connecting shaft of the first angle encoder is rotatably supported through the output end bearing seat.

5. A gearbox gear clearance dynamic measurement system as defined in claim 2, wherein: the output end of the input end dynamometer is connected with a second torque sensor, one end of a second angle encoder is connected to an input end bearing seat of the gear box, the other end of the second angle encoder is connected to the second torque sensor through a second coupler, and a second tool flange connected to the second coupler is arranged at the shaft end of the second angle encoder.

6. A gearbox gear clearance dynamic measurement system as defined in claim 1, wherein: the dynamic gear clearance measuring system of the gear box is provided with a test bed base.

7. A gearbox gear clearance dynamic measurement system as defined in claim 6, wherein: the output end dynamometer and the input end dynamometer are arranged on the test bed base, and the gear box is supported on the test bed base through a gear box fixing frame.

8. A gearbox gear clearance dynamic measurement system as defined in claim 7, wherein: the first angle encoder is supported on the test bed base by a first angle encoder base.

9. A gearbox gear clearance dynamic measurement system as defined in claim 8, wherein: the second angle encoder is supported on the test bed base through a second angle encoder base.