Train wiper driving assembly torque load testing device

Abstract

The utility model discloses a train window wiper drive assembly torque load testing device, which comprises a substrate, a single-shaft magnetic powder brake, a dynamic torque sensor and a telescopic universal coupling are sequentially arranged on the substrate from left to right, the output end of the single-shaft magnetic powder brake is connected with the dynamic torque sensor through a first connecting piece, and the output end of the dynamic torque sensor is connected with the telescopic universal coupling through a second connecting piece. The dynamic torque sensor is connected with the telescopic universal coupling through a second connecting piece, and the telescopic universal coupling is connected with the window wiper driving assembly through a third connecting piece. The telescopic universal coupling is arranged to eliminate the precision influence caused by tiny non-coaxiality during the torque test of the driving assembly. And the transition flange which can be quickly replaced is arranged, so that the output shaft of the driving assembly can be quickly fixed.

Description

Technical Field

[0001] This utility model relates to the field of torque load testing technology, specifically to a torque load testing device for a train windshield wiper drive assembly. Background Technology

[0002] With the rapid development of rail locomotives and rolling stock, customers have increasingly higher requirements for the stability and long service life of rail vehicle wipers.

[0003] The testing process for the torque load of the windshield wiper drive assembly also needs to be improved to achieve fast, efficient, and accurate detection of the output torque of the windshield wiper drive assembly. This will ensure that the overall function of the windshield wipers is more reliable and their operation is more stable.

[0004] The wiper drive assemblies for which the required torque is to be tested are divided into electric and pneumatic types. The output torque of the drive assembly was initially tested using a spring scale and matching fixture. The torque value was converted from the lever arm. The process of installing and fixing the spring scale and fixture is cumbersome, time-consuming, and labor-intensive. Furthermore, inaccurate position adjustment can easily cause the pulling direction of the spring scale to be non-perpendicular to the lever arm direction, affecting the test data.

[0005] When testing the output torque of the windshield wiper drive assembly, it is particularly important to develop a quick testing device. Utility Model Content

[0006] The purpose of this invention is to solve the problems mentioned above in the background technology and to propose a torque load testing device for a train wiper drive assembly.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A torque load testing device for a train wiper drive assembly includes a base plate. From left to right, a single-axis magnetic powder brake, a dynamic torque sensor, and a telescopic universal coupling are arranged on the base plate. The output end of the single-axis magnetic powder brake is connected to the dynamic torque sensor through a first connector. The dynamic torque sensor is connected to the telescopic universal coupling through a second connector. The telescopic universal coupling is connected to the wiper drive assembly through a third connector.

[0009] As a further embodiment of this utility model: the first connecting member is a star-shaped coupling.

[0010] As a further embodiment of this utility model: the second connecting member is a sensor connecting flange.

[0011] As a further embodiment of this utility model: the third connecting member is a transition flange.

[0012] As a further aspect of this invention: the torque load testing device further includes a tension controller, which is used to adjust the change in the current value input to the single-axis magnetic powder brake.

[0013] As a further embodiment of this utility model: a mounting bracket is detachably mounted on the substrate near the transition flange, and the wiper drive assembly can be mounted on the mounting bracket.

[0014] As a further embodiment of this utility model, the single-axis magnetic powder brake is detachably mounted on the substrate via a fixing seat.

[0015] As a further embodiment of this invention, the dynamic torque sensor is detachably mounted on the substrate via a small support.

[0016] The beneficial effects of this utility model are:

[0017] A telescopic universal coupling was used to eliminate the impact of slight shaft misalignment on accuracy during drive assembly torque testing. A quick-change transition flange was installed to enable rapid fixation of the drive assembly output shaft. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is the front view of this utility model;

[0020] Figure 2 This is a side view of the present invention;

[0021] Figure 3 This is a three-dimensional drawing of this utility model.

[0022] In the diagram: 1. Single-shaft magnetic powder brake; 2. Star-shaped coupling; 3. Dynamic torque sensor; 4. Small support; 5. Sensor connection flange; 6. Telescopic universal coupling; 7. Transition flange; 8. Mounting bracket; 9. Tension controller; 10. Fixing plate; 11. L-shaped fixing seat; 12. Base plate; 13. Base frame assembly; 14. Transition mounting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1, please refer to Figure 1-3 As shown, this utility model is a torque load testing device for a train wiper drive assembly, including a base plate 12. From left to right, a single-axis magnetic powder brake 1, a dynamic torque sensor 3, and a telescopic universal coupling 6 are arranged on the base plate 12. The output end of the single-axis magnetic powder brake 1 is connected to the dynamic torque sensor 3 through a first connector. The dynamic torque sensor 3 is connected to the telescopic universal coupling 6 through a second connector. The telescopic universal coupling 6 is connected to the wiper drive assembly through a third connector.

[0025] Example 2, please refer to Figure 1-3 As shown, this utility model is a torque load testing device for a train wiper drive assembly, including a base plate 12. From left to right, a single-axis magnetic powder brake 1, a dynamic torque sensor 3, and a telescopic universal coupling 6 are arranged on the base plate 12. The output end of the single-axis magnetic powder brake 1 is connected to the dynamic torque sensor 3 through a first connecting member, which is a star-shaped coupling 2. The dynamic torque sensor 3 is connected to the telescopic universal coupling 6 through a second connecting member, which is a sensor connecting flange 5. The telescopic universal coupling 6 is connected to the wiper drive assembly through a third connecting member, which is a transition flange 7.

[0026] Example 3, please refer to Figure 1-3 As shown, this utility model is a torque load testing device for a train wiper drive assembly, including a base plate 12. From left to right, a single-axis magnetic powder brake 1, a dynamic torque sensor 3, and a telescopic universal coupling 6 are arranged on the base plate 12. The output end of the single-axis magnetic powder brake 1 is connected to the dynamic torque sensor 3 through a first connecting member, which is a star-shaped coupling 2. The dynamic torque sensor 3 is connected to the telescopic universal coupling 6 through a second connecting member, which is a sensor connecting flange 5. The telescopic universal coupling 6 is connected to the wiper drive assembly through a third connecting member, which is a transition flange 7.

[0027] The torque load testing device also includes a tension controller 9, which is used to adjust the change in the current value input to the single-axis magnetic powder brake 1.

[0028] A mounting bracket 8 is detachably mounted on the base plate 12 near the transition flange 7, and the wiper drive assembly can be mounted on the mounting bracket 8.

[0029] The single-axis magnetic powder brake 1 is detachably mounted on the base plate 12 via a mounting bracket.

[0030] The dynamic torque sensor 3 is detachably mounted on the base plate 12 via a small support 4.

[0031] It is worth noting that:

[0032] In order to ensure that drive assemblies with different output shaft lengths can be tested on one device, the torque load testing device has multiple mounting holes with the same hole spacing on the base plate 12, which makes it easy for the mounting bracket 8 to adjust the mounting position on the base plate 12, thereby ensuring the versatility of the device.

[0033] The torque load testing device adopts a telescopic universal coupling 6, which can adjust the slight misalignment between the output shaft of the drive assembly and the output shaft of the dynamic torque sensor 3, making the test more accurate and not restricting the force on the device, thus improving the stability and reliability of the device.

[0034] Meanwhile, the use of a telescopic universal coupling makes it easier to install the transition flange 7 onto the output shaft of the wiper drive assembly. The telescopic universal coupling can also compensate for the axial installation distance of the drive assembly output shaft.

[0035] When installing the dynamic torque sensor 3, the torque load testing device uses an I-shaped small support plate to raise and fix the position of the dynamic torque sensor 3, so that the height of the central axis of the dynamic torque sensor 3 from the base plate 12 is appropriate, which can meet the torque measurement of drive assemblies of different size ranges.

[0036] The single-axis magnetic particle brake 1 of the torque load testing device is mounted on the fixed plate 10, which is then mounted on two L-shaped fixed seats. The L-shaped fixed seats are symmetrically fixed to the base plate 12. The L-shaped fixed seats make the structure compact and sturdy.

[0037] The torque load testing device uses a star-shaped coupling to connect with the dynamic torque sensor 3 to ensure smooth transmission.

[0038] The torque load testing device has a sensor connection flange 5 installed at the other end of the dynamic torque sensor 3, which is used to dock with the telescopic universal coupling 6.

[0039] The torque load testing device has a transition flange 7 installed at one end of the telescopic universal coupling 6. The transition flange 7 is a module that connects to the output shaft of the wiper drive assembly. Different types of drive assemblies can transmit torque by changing the transition flange 7 during torque testing. For example, transition flanges 7 with round holes, square holes, and different hole diameters can be provided.

[0040] By replacing the transition flange 7, quick installation of output shafts for different types and sizes of drive assemblies can be achieved. During torque measurement, only the module needs to be replaced to enable the same device to test the torque of multiple types of drive assemblies.

[0041] The transition flange 7 of the torque load testing device adopts a slotted structure and has fixing screws on its side. After the transition flange 7 is pre-installed on the output shaft of the drive assembly, simply tightening the screws on the transition flange 7 will fix the transition flange 7 to the output shaft. With the help of a telescopic universal coupling, quick pre-installation of the transition flange 7 and the output shaft of the drive assembly is achieved.

[0042] The torque load testing device adjusts the current value input to the single-axis magnetic powder brake 1 by means of the tension controller 9 installed on the side of the bottom frame assembly 13, thereby controlling the reverse load output by the single-axis magnetic powder brake 1.

[0043] The dynamic torque sensor 3 of the torque load test device adopts positive and negative torque test modes. Since the output shaft of the wiper drive assembly swings back and forth, the positive and negative torque values ​​output by the torque sensor are used to distinguish whether the tested torque value is swinging in the positive or negative direction.

[0044] A torque load testing device for a train wiper drive assembly includes a single-shaft magnetic powder brake 1, a star coupling 2, a dynamic torque sensor 3, a small support 4, a sensor connection flange 5, a telescopic universal coupling 6, a transition flange 7, a mounting bracket 8, a tension controller 9, a fixing plate 10, an L-shaped fixing seat 11, a base plate 12, a bottom frame assembly 13, a transition mounting plate 14, and other accessories.

[0045] The substrate 13 is fixed to the base frame assembly 12 by bolts. The L-shaped fixing seat 11 is installed on the substrate 13, and the fixing plate 10 is installed on the fixing seat 11. The single-axis magnetic powder brake 1 is installed on the fixing plate 10.

[0046] The small support 4 is bolted to the base plate 13, and the dynamic torque sensor 3 is mounted to the small support 4.

[0047] Install the tension controller 9 onto the base frame assembly 12. Secure the mounting bracket 8 to the base plate 13. Secure the transition mounting plate 14 to the mounting bracket 8.

[0048] Connect and fix both ends of the star-shaped coupling 2 to the single-shaft magnetic powder brake 1 and the dynamic torque sensor 3, respectively. Fix the sensor connecting flange 5 to the right end of the dynamic torque sensor 3 as shown in the diagram. Install one end of the telescopic universal coupling 6 to the sensor connecting flange 5, and install the other end of the telescopic universal coupling 6 to the transition flange 7.

[0049] During testing, the wiper drive assembly is mounted onto the mounting bracket 8 and the transition mounting plate 14. If the output shaft of the drive assembly is too far from the transition flange 7 during installation, the mounting can be adjusted by changing the left and right position of the mounting bracket 8 as shown in the diagram on the base plate 13.

[0050] When installing the transition flange 7, first move the transition flange 7 to the left side of the telescopic universal coupling 6 as shown in the figure. After aligning the inner hole of the transition flange 7 with the output shaft of the drive assembly, pre-assemble the transition flange 7 together with the telescopic universal coupling 6 to the output shaft of the drive assembly to the right side as shown in the figure, and tighten the screws on the cylindrical surface of the transition flange 7 to clamp the transition flange 7 to the output shaft of the drive assembly. Different types of transition flanges 7 are provided to be applicable to the torque tests of wiper drive assemblies with different output shaft types.

[0051] By slowly adjusting the knob of the tension controller 9, the change of the current value input to the single-axis magnetic powder brake 1 is realized. The single-axis magnetic powder brake 1 outputs a reverse load according to different current values. Start the wiper drive assembly, and the output shaft of the wiper drive assembly swings back and forth. At this time, the torque value output by the drive assembly can be displayed in real time through the dynamic torque sensor.

[0052] The torque load test device for a train wiper drive assembly of the present utility model adopts a modular replacement and combined structure, making it applicable to the torque tests of train drive assemblies with different structural dimensions. And the telescopic universal coupling is adopted to achieve efficient and fast pre-assembly and fixation, solving the accuracy influence caused by the non-coaxiality between the output shaft of the drive assembly during installation and the measuring shaft of the dynamic torque sensor, etc.

[0053] This device can be used for the torque tests of train pneumatic and electric type wiper drive assemblies in general. This device can simulate and study the operating state of the wiper drive assembly under large load and long time, and at the same time build a simulation working condition platform for setting the internal parameters of the control box of the components supporting the wiper, such as providing a basis for setting the protection current value parameter of the control box, etc.

[0054] In summary, the present utility model can well meet the torque tests of train pneumatic type and electric type wiper drive assemblies. The test accuracy is high, the test is fast, and the universality is strong.

[0055] The transition flange 7 adopts a slotted structure, and fixing screws are provided on the cylindrical surface of the transition flange 7, realizing fast pre-assembly and fixation.

[0056] By setting the small support 4 to fix the dynamic torque sensor 3, the installation space requirement problem caused by the different center heights of the output shafts of the tested products is solved. At the same time, the fixation is firm.

[0057] A movable and fixed installation bracket 8 is provided, which can be applicable to the torque tests of drive assemblies with different output shaft lengths.

[0058] A transition plate is provided on the installation bracket 8, and by replacing the transition plate, the fixation of drive assemblies with different installation interfaces can be realized.

[0059] By adjusting the tension controller 9, the current value of the single-axis magnetic powder brake 1 is controlled, so that the single-axis magnetic powder brake 1 outputs an adjustable and linear load. The torque value output by the wiper drive assembly is tested in real time by the dynamic torque sensor 3.

[0060] This device can test the output torque of pneumatic and electric windshield wiper drive assemblies on trains. It is highly versatile and provides accurate test results.

[0061] The base frame assembly 13 is equipped with casters, allowing for flexible movement of the device. The base frame assembly 13 also includes cabinet doors and storage space for storing tools, fixing screws, and other accessories.

[0062] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A torque load testing device for a train windshield wiper drive assembly, comprising a base plate (12), characterized in that, The base plate (12) is provided with a single-axis magnetic powder brake (1), a dynamic torque sensor (3), and a telescopic universal coupling (6) arranged sequentially from left to right. The output end of the single-axis magnetic powder brake (1) is connected to the dynamic torque sensor (3) through a first connector. The dynamic torque sensor (3) is connected to the telescopic universal coupling (6) through a second connector. The telescopic universal coupling (6) is connected to the windshield wiper drive assembly through a third connector.

2. The train wiper drive assembly torque load testing device according to claim 1, characterized in that, The first connecting component is a star coupling (2).

3. The train wiper drive assembly torque load testing device according to claim 1, characterized in that, The second connector is the sensor connection flange (5).

4. The train wiper drive assembly torque load testing device according to claim 1, characterized in that, The third connecting component is a transition flange (7).

5. A train wiper drive assembly torque load testing device according to any one of claims 1 to 4, characterized in that, The torque load testing device also includes a tension controller (9), which is used to adjust the change in the current value input to the single-axis magnetic powder brake (1).

6. A train wiper drive assembly torque load testing device according to claim 4, characterized in that, A mounting bracket (8) is detachably mounted on the base plate (12) near the transition flange (7), and the wiper drive assembly can be mounted on the mounting bracket (8).

7. A train wiper drive assembly torque load testing device according to claim 1, characterized in that, The single-axis magnetic powder brake (1) is detachably mounted on the base plate (12) via a fixing seat.

8. A train wiper drive assembly torque load testing device according to claim 1, characterized in that, The dynamic torque sensor (3) is detachably mounted on the base plate (12) via a small support (4).

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