Bevel gear meshing performance testing device

Abstract

The utility model relates to bevel gear testing arrangement discloses a kind of bevel gear meshing performance testing device, it is unable to move along Y axis direction to big wheel, therefore due to the axial force of small wheel will react in big wheel Y axis direction, small wheel and first rotating main shaft, X axis slide rail platform, Y axis slide rail platform in Y axis direction equivalent to a whole, therefore pressure sensor one can measure the change of big wheel Y axis direction force and the change of displacement in gear meshing process, equivalent to the axial force of big wheel, through external display record real-time axial force fluctuation curve and displacement fluctuation.Small wheel can move along X axis direction, small wheel and first rotating main shaft, X axis slide rail platform in X axis direction equivalent to a whole, therefore pressure sensor two can directly measure the axial force change and position change of small wheel in gear meshing process, and record real-time axial force fluctuation curve and displacement fluctuation.The utility model designs measurement device structure simple, easy to operate, photoelectric encoder can measure transmission error simultaneously.

Description

Technical Field

[0001] This utility model relates to a bevel gear testing device, and more particularly to a bevel gear meshing performance testing device. Background Technology

[0002] As a key component of automotive transmission, the differential has a significant impact on overall vehicle performance. With the rapid development of the automotive industry today, performance is no longer the sole criterion for evaluating a car's quality; comfort has become increasingly important. NVH (Noise, Vibration, and Harshness) is a direct factor affecting ride comfort.

[0003] The meshing impact of the differential bevel gears is a key factor affecting the vibration and noise of the entire vehicle during cornering. Therefore, the meshing performance of the differential bevel gears during operation is particularly important. Currently, most methods for testing meshing performance use gear meshing testers to test the contact patch under no-load conditions. However, axial force and transmission error cannot be measured on this device. This testing device and method cannot accurately evaluate gear meshing performance. Summary of the Invention

[0004] This invention addresses the problem that existing bevel gear testing devices cannot measure axial force and transmission error, and cannot accurately evaluate gear meshing performance, by providing a bevel gear meshing performance testing device.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method: The machine tool has a first rotating spindle and a second rotating spindle; it is equipped with mutually perpendicular X-axis guideways, Y-axis guideways, and Z-axis guideways, with the Z-axis guideway located on the column. The Y-axis slide rail platform slides along the Y-axis guide rail, and the X-axis slide rail platform slides along the X-axis guide rail. A Z-axis slide rail box is installed on the column, and the Z-axis slide rail box moves up and down along the Z-axis guide rail; the first rotating spindle is used to install the small bevel gear and is movably mounted on the machine tool via the X-axis slide rail platform and the Y-axis slide rail platform; the second rotating spindle is used to install the large bevel gear and is movably mounted on the column via the Z-axis slide rail box.

[0006] As a preferred option, it also includes: Pressure sensor one, positioned along the Y-axis, measures the axial force of the larger gear during bevel gear meshing; pressure sensor two, positioned along the X-axis, measures the axial force of the smaller gear during bevel gear meshing. Photoelectric encoder 1 is installed on the first rotating main shaft. Photoelectric encoder 1 is used to measure the rotation angle of the small wheel. The second photoelectric encoder is installed on the second rotating main shaft and is used to measure the rotation angle of the large wheel.

[0007] As a preferred option The second rotating spindle is a magnetic powder brake used to apply the load; the first rotating spindle is a motor used to drive the small wheel to rotate.

[0008] As a preferred option, scales are provided on the Y-axis slide rail platform, machine tool, and column.

[0009] Preferably, a Y-axis slider is slidably connected to the Y-axis guide rail, and an X-axis slider is slidably connected to the X-axis guide rail.

[0010] Preferably, pressure sensor one is connected to the Y-axis slider on one side and contacts the Y-axis slide rail platform on the other side; pressure sensor two is connected to the X-axis slider on one side and contacts the X-axis slide rail platform on the other side.

[0011] Preferably, the Y-axis slider, X-axis slider, and Z-axis slide box are all equipped with locking units.

[0012] This utility model, by adopting the above technical solution, has significant technical effects: The testing device of this invention addresses the limitation that the large wheel cannot move along the Y-axis. Since the axial force of the small wheel reacts on the large wheel along the Y-axis, and the small wheel, the first rotating spindle, the X-axis slide rail platform, and the Y-axis slide rail platform act as a single unit in the Y-axis direction, pressure sensor one can measure the changes in force and displacement of the large wheel in the Y-axis direction during gear meshing, which is equivalent to the axial force of the large wheel. The real-time axial force fluctuation curve and displacement fluctuation are recorded via an external display. The small wheel can move along the X-axis, and since it, the first rotating spindle, and the X-axis slide rail platform act as a single unit in the X-axis direction, pressure sensor two can directly measure the changes in axial force and position of the small wheel during gear meshing and record the real-time axial force fluctuation curve and displacement fluctuation.

[0013] This invention utilizes a magnetic powder brake to measure the meshing performance of bevel gears under different torques.

[0014] This invention uses photoelectric encoder one and photoelectric encoder two to measure the actual rotation angles of the large and small gears at different moments during gear meshing. Substituting these angles into the transmission error formula yields the transmission error curve. The meshing pattern of the bevel gears at standard or arbitrary mounting distances is measured. Photoelectric encoder one and photoelectric encoder two can simultaneously measure the transmission error.

[0015] This invention features scales on the Y-axis slide rail platform, machine tool, and column to ensure accurate adjustment of the installation distance.

[0016] The testing device designed in this utility model can simultaneously measure meshing performance, contact patch, transmission error, and axial force. Moreover, the design of this measuring device is simple in structure and easy to operate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a side view of the structure of this utility model.

[0019] Among them, 1—column, 2—machine tool, 3—X-axis guide rail, 4—Y-axis slide rail platform, 5—worm gear, 6—Y-axis slider, 7—guide rod, 8—pin, 9—Y-axis guide rail; 10—pressure sensor one, 12—X-axis slide rail platform, 13—first rotating spindle, 14—photoelectric encoder one, 15—photoelectric encoder two, 16—second rotating spindle, 17—Z-axis slide rail box, 18—Z-axis guide rail, 19—X-axis slider, 20—pressure sensor two. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Example 1 A bevel gear meshing performance testing device includes a machine tool 2 and a column 1; the column 1 is mounted on the machine tool 2; the machine tool 2 is also provided with an X-axis slide rail platform 12 and a Y-axis slide rail platform 4; characterized in that it further includes a first rotating spindle 13 and a second rotating spindle 16; the machine tool 2 is provided with mutually perpendicular X-axis guide rails 3, Y-axis guide rails 9 and Z-axis guide rails 18, and the Z-axis guide rail 18 is located on the column 1. Y-axis slide rail platform 4 slides along Y-axis guide rail 9, and X-axis slide rail platform 12 slides along X-axis guide rail 3; A Z-axis slide rail box 17 is installed on the column 1, and the Z-axis slide rail box 17 moves up and down along the Z-axis guide rail 18; the first rotating spindle 13 is used to install the small bevel gear and is movably mounted on the machine tool 2 via the X-axis slide rail platform 12 and the Y-axis slide rail platform 4; the second rotating spindle 16 is used to install the large bevel gear and is movably mounted on the column 1 via the Z-axis slide rail box 17.

[0022] The second rotating spindle 16 is a magnetic powder brake used to apply a load; the first rotating spindle 13 is a motor used to drive the small wheel to rotate.

[0023] Scales are provided on the Y-axis slide rail platform 4, machine tool 2, and column 1.

[0024] Y-axis slider 6 is slidably connected to Y-axis guide rail 9, and X-axis slider 19 is slidably connected to X-axis guide rail 3.

[0025] Pressure sensor 10 is connected to the Y-axis slider 6 on one side and contacts the Y-axis slide rail platform 4 on the other side; pressure sensor 20 is connected to the X-axis slider 19 on one side and contacts the X-axis slide rail platform 12 on the other side.

[0026] Example 2 A bevel gear meshing performance testing device includes a machine tool 2 and a column 1; the column 1 is mounted on the machine tool 2; the machine tool 2 is also provided with an X-axis slide rail platform 12 and a Y-axis slide rail platform 4; characterized in that it further includes a first rotating spindle 13 and a second rotating spindle 16; the machine tool 2 is provided with mutually perpendicular X-axis guide rails 3, Y-axis guide rails 9 and Z-axis guide rails 18, and the Z-axis guide rail 18 is located on the column 1. Y-axis slide rail platform 4 slides along Y-axis guide rail 9, and X-axis slide rail platform 12 slides along X-axis guide rail 3; A Z-axis slide rail box 17 is installed on the column 1, and the Z-axis slide rail box 17 moves up and down along the Z-axis guide rail 18; the first rotating spindle 13 is used to install the small bevel gear and is movably mounted on the machine tool 2 via the X-axis slide rail platform 12 and the Y-axis slide rail platform 4; the second rotating spindle 16 is used to install the large bevel gear and is movably mounted on the column 1 via the Z-axis slide rail box 17.

[0027] It also includes: a pressure sensor 10 set in the Y-axis direction, which measures the axial force of the large gear during bevel gear meshing; and a pressure sensor 20 set in the X-axis direction, which measures the axial force of the small gear during bevel gear meshing. Photoelectric encoder 14 is installed on the first rotating main shaft 13. Photoelectric encoder 14 is used to measure the rotation angle of the small wheel. Photoelectric encoder 215 is installed on the second rotating spindle 16. Photoelectric encoder 215 is used to measure the rotation angle of the large wheel.

[0028] The second rotating spindle 16 is a magnetic powder brake used to apply a load; the first rotating spindle 13 is a motor used to drive the small wheel to rotate.

[0029] Scales are provided on the Y-axis slide rail platform 4, machine tool 2, and column 1.

[0030] Y-axis slider 6 is slidably connected to Y-axis guide rail 9, and X-axis slider 19 is slidably connected to X-axis guide rail 3.

[0031] Pressure sensor 10 is connected to the Y-axis slider 6 on one side and contacts the Y-axis slide rail platform 4 on the other side; pressure sensor 20 is connected to the X-axis slider 19 on one side and contacts the X-axis slide rail platform 12 on the other side.

[0032] Example 3 A bevel gear meshing performance testing device includes a machine tool 2 and a column 1; the column 1 is mounted on the machine tool 2; the machine tool 2 is also provided with an X-axis slide rail platform 12 and a Y-axis slide rail platform 4; characterized in that it further includes a first rotating spindle 13 and a second rotating spindle 16; the machine tool 2 is provided with mutually perpendicular X-axis guide rails 3, Y-axis guide rails 9 and Z-axis guide rails 18, and the Z-axis guide rail 18 is located on the column 1, the Y-axis slide rail platform 4 slides along the Y-axis guide rail 9, and the X-axis slide rail platform 12 slides along the X-axis guide rail 3; a Z-axis slide rail box 17 is mounted on the column 1, and the Z-axis slide rail box 17 moves up and down along the Z-axis guide rail 18; the first rotating spindle 13 is used to mount the bevel gear pinion and is movably mounted on the machine tool 2 via the X-axis slide rail platform 12 and the Y-axis slide rail platform 4; the second rotating spindle 16 is used to mount the bevel gear large wheel and is movably mounted on the column 1 via the Z-axis slide rail box 17.

[0033] Also includes: Pressure sensor 10, positioned along the Y-axis, measures the axial force of the large gear during bevel gear meshing; Pressure sensor 20, positioned along the X-axis, measures the axial force of the small gear during bevel gear meshing. Photoelectric encoder 14 is installed on the first rotating main shaft 13. Photoelectric encoder 14 is used to measure the rotation angle of the small wheel. Photoelectric encoder 215 is installed on the second rotating spindle 16. Photoelectric encoder 215 is used to measure the rotation angle of the large wheel.

[0034] The second rotating spindle 16 is a magnetic powder brake used to apply a load; the first rotating spindle 13 is a motor used to drive the small wheel to rotate.

[0035] Scales are provided on the Y-axis slide rail platform 4, machine tool 2, and column 1.

[0036] Y-axis slider 6 is slidably connected to Y-axis guide rail 9, and X-axis slider 19 is slidably connected to X-axis guide rail 3.

[0037] Pressure sensor 10 is connected to the Y-axis slider 6 on one side and contacts the Y-axis slide rail platform 4 on the other side; pressure sensor 20 is connected to the X-axis slider 19 on one side and contacts the X-axis slide rail platform 12 on the other side.

[0038] The Y-axis slider 6, X-axis slider 19, and Z-axis slide box 17 are all equipped with locking units.

[0039] The locking unit is equipped with two guide rods 7, one end of which is fixed on the Y-axis slide rail platform 4, and the other end passes through the Y-axis slider 6. A pin 8 is installed on one side of the guide rod 7 to prevent slippage.

[0040] Example 4 Based on the above embodiments, before the test begins in this embodiment, one side of the pressure sensor 10 is attached to the Y-axis slider 6. The Y-axis slider 6 is moved so that the other side of the pressure sensor 10 contacts the Y-axis slide rail platform 4, ensuring that the pressure of the pressure sensor is 0 at this time. Then, the worm gear 5 is adjusted so that the worm gear 7 locks against the guide rod 7. At this time, the Y-axis slider 6, the pressure sensor 10, the Y-axis slide rail platform 4, the X-axis slide rail platform 12, the X-axis slider 19, and the first rotating main shaft 13 (motor) are equivalent to a whole in the Y-axis direction.

[0041] One side of pressure sensor 20 is attached to X-axis slider 19. Moving X-axis slider 19 brings the other side of pressure sensor 20 into contact with X-axis slide rail platform 12, ensuring the pressure sensor's pressure is zero. Then, the worm gear 5 is adjusted so that the worm gear 7, X-axis slider 19, pressure sensor 20, X-axis slide rail platform 12, and first rotating spindle 13 (motor) function as a single unit in the X-axis direction. The X-axis slider 19, Y-axis slider 6, and Z-axis slide rail box 17 are aligned by adjusting the bevel gear mounting distance. Then, the X-axis slider 19, Y-axis slider 6, and Z-axis slide rail box 17 are locked, and the worm gear 5 is adjusted to release the guide rod 7. The load on the second rotating spindle 16 (magnetic powder brake) and the speed of the first rotating spindle 13 (motor) are set.

[0042] The data measured by the pressure sensor is processed by a computer to obtain the axial force fluctuation curve during the bevel gear meshing process. Before starting the test, a layer of red lead powder is applied to the three tooth surfaces of the large gear, and the tooth surface contact spots can be obtained after the test results.

[0043] The data measured by the photoelectric encoder is processed by computer to obtain the actual rotation angles of the large and small wheels at different times. The transmission error curve can be obtained by substituting the data into the formula.

[0044] ; in, and These represent the actual rotation angles of the smaller and larger wheels during engagement. and Z1 represents the theoretical turning angle of the small wheel and the large wheel, Z2 represents the number of teeth on the small wheel and the number of teeth on the large wheel.

Claims

1. A bevel gear meshing performance testing device, comprising a machine tool and a column; the column is mounted on the machine tool; the machine tool is further provided with an X-axis slide rail platform and a Y-axis slide rail platform; characterized in that: It also includes a first rotating spindle and a second rotating spindle; the machine tool is equipped with mutually perpendicular X-axis guideways, Y-axis guideways, and Z-axis guideways, with the Z-axis guideway located on the column. The Y-axis slide rail platform slides along the Y-axis guide rail, and the X-axis slide rail platform slides along the X-axis guide rail. A Z-axis slide rail box is installed on the column, and the Z-axis slide rail box moves up and down along the Z-axis guide rail; the first rotating spindle is used to install the small bevel gear and is movably mounted on the machine tool via the X-axis slide rail platform and the Y-axis slide rail platform; the second rotating spindle is used to install the large bevel gear and is movably mounted on the column via the Z-axis slide rail box.

2. The bevel gear meshing performance testing device according to claim 1, characterized in that, Also includes: A pressure sensor is set in the Y-axis direction to measure the axial force of the large gear during the meshing of the bevel gear. A second pressure sensor is installed in the X-axis direction to measure the axial force of the pinion during the meshing of the bevel gear. Photoelectric encoder 1 is installed on the first rotating main shaft. Photoelectric encoder 1 is used to measure the rotation angle of the small wheel. The second photoelectric encoder is installed on the second rotating main shaft and is used to measure the rotation angle of the large wheel.

3. The bevel gear meshing performance testing device according to claim 1, characterized in that, The second rotating spindle is a magnetic powder brake used to apply the load; the first rotating spindle is a motor used to drive the small wheel to rotate.

4. The bevel gear meshing performance testing device according to claim 1, characterized in that, The Y-axis slide rail platform, machine tool, and column are equipped with scales.

5. The bevel gear meshing performance testing device according to claim 1, characterized in that, A Y-axis slider is slidably connected to the Y-axis guide rail, and an X-axis slider is slidably connected to the X-axis guide rail.

6. The bevel gear meshing performance testing device according to claim 1, characterized in that, Pressure sensor one is connected to the Y-axis slider on one side and contacts the Y-axis slide rail platform on the other side; pressure sensor two is connected to the X-axis slider on one side and contacts the X-axis slide rail platform on the other side.

7. The bevel gear meshing performance testing device according to claim 1, characterized in that, The Y-axis slider, X-axis slider, and Z-axis slide box are all equipped with locking units.

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