A test device for simulating the bumping of lifter motor on car door

Abstract

The utility model discloses a jig for simulating the bumping test of a lifter motor on a car door, and relates to the technical field of vehicle motor testing. The key points of the technical solution include a jig stand, the upper end of which is provided with a fixed pulley, the fixed pulley is connected to a steel wire rope, the bottom of the steel wire rope is connected to a simulated counterweight, and the other end is connected to a simulated motor mechanism; the jig stand is provided with a pull-wire encoder, and the pull-wire encoder is provided with a connecting pull rope that moves synchronously with the lower end of the steel wire rope. The utility model simulates the load and vibration of the window glass borne by the lifter motor of the car window when it bumps on the car door, so that the jig for simulating the bumping test of the lifter motor on the car door has the effects of convenient installation, effective reduction of the load of the vibration test bench, compact structure to reduce the possibility of resonance, and obvious performance failure parameters, thereby simplifying the initial verification, and is suitable for analyzing the lifter motor with abnormal bumping test results of the car door or lifter separately.

Description

Technical Field

[0001] The invention relates to the field of vehicle motor testing, and more particularly to a test tool for simulating the bumping of a lifter motor on a car door. Background Art

[0002] In order to ensure the personal safety and property safety of drivers and passengers, car manufacturers have gradually improved their standards and requirements for the performance of car doors on bumpy roads as the automobile industry develops rapidly.

[0003] Among them, the most important failure form of the window lifter motor is the unstable phenomenon such as swinging and displacement of the worm caused by the worm gear structure during the bumping process, which causes the worm gear to slip slightly in the self-locking state.

[0004] In the traditional test method of bump test of window lifter, the lifter is installed on the simulation fixture, and then a counterweight block equivalent to the glass load is installed on the glass bracket to perform the vibration test. However, in the actual test process, due to the reasons such as the installation height of the window lifter is too high, the overall center of gravity of the fixture is too high, and the mass is too large, the accuracy of the simulated bump test will be reduced. Therefore, higher requirements are formed for the vibration test bench and the test fixture structure to avoid the problem of poor reproducibility. However, the current vibration test bench and test fixture structure still cannot meet higher standards, which affects the accuracy of the simulated bump test and needs to be improved. Summary of the invention

[0005] In view of this, the purpose of this application is to provide a test fixture for simulating the bumping of a lifter motor on a car door, so as to significantly improve the test accuracy. The specific scheme is as follows:

[0006] A tooling for simulating the bumping test of a lifter motor on a car door comprises a tooling stand, wherein a fixed pulley is arranged at the upper end of the tooling stand, the fixed pulley is connected to a steel wire rope, a simulated counterweight is connected to the bottom of the steel wire rope, and a simulated motor mechanism is connected to the other end; the tooling stand is provided with a draw wire encoder, and the draw wire encoder is provided with a connecting draw wire that moves synchronously with the lower end of the steel wire rope.

[0007] Preferably: the simulated motor mechanism includes a tooling base plate, the tooling base plate is used to be installed and fixed on the vibration test bench, and the tooling base plate is provided with a motor mounting plate for installing and fixing the lifter motor, and the corresponding end of the wire rope is connected to the lifter motor installed on the motor mounting plate.

[0008] Preferably, two ends of the steel wire rope are perpendicular to each other at the fixed pulley, a pull rope fixing structure is provided at the lower end of the steel wire rope, and the pull rope fixing structure is connected and fixed to the connecting pull rope.

[0009] Preferably, the pull rope fixing structure is threadedly connected with a threaded column, and a corresponding end of the threaded column is used for abutting and fixing with the steel wire rope.

[0010] Preferably: a stand is provided at the top end of the tooling bracket, the fixed pulley is fixed on the stand, and the wire encoder is fixed on the upper side of the fixed pulley.

[0011] Preferably, the simulated counterweight is detachably connected to the steel wire rope.

[0012] It can be seen from the above scheme that the present application provides a test fixture for simulating the bumping of a lifter motor on a car door, and the test fixture for simulating the bumping of a lifter motor on a car door has the following beneficial effects: by simulating the window glass load and vibration that the window lifter motor bears when it bumps on the car door, the test fixture for simulating the bumping of a lifter motor on a car door has the effects of easy installation, effective reduction of the load on the vibration test bench, tight structure to reduce the possibility of resonance, and obvious performance failure parameters, thereby effectively simplifying the initial verification of the window lifter motor in the bump test on the car door, and is suitable for separately analyzing the lifter motor with abnormal door or lifter bump test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of this embodiment;

[0014] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure of part A;

[0015] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of part B.

[0016] Explanation of the reference numerals: 1. Simulated counterweight; 2. Steel wire rope; 3. Tooling base plate; 4. Motor fixing plate; 5. Fixed pulley; 6. Wire encoder; 61. Connecting pull rope; 7. Wire fixing structure; 71. Threaded column; 8. Tooling bracket; 81. Vertical frame. DETAILED DESCRIPTION

[0017] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0018] like Figure 1As shown, a jig for simulating the bumping test of a lifter motor on a car door includes a jig stand 81. A fixed pulley 5 is provided at the upper end of the jig stand 81, a steel wire rope 2 is connected to the fixed pulley 5, and a simulated counterweight 1 is connected to the bottom of the steel wire rope 2. The fixed pulley 5 is used to adjust the gravity direction of the simulated counterweight 1, and then the height of the side plate is adjusted to ensure the level of the steel wire rope 2 in the horizontal direction, so as to achieve the purpose of adapting to the vibration test table surfaces of different heights on the vibration test table. It should be noted that the simulated counterweight 1 simulates the actual gravity of the window glass through the steel wire rope 2, thereby improving the simulation accuracy. Among them, the simulated counterweight 1 is detachably connected to the steel wire rope 2, so that the simulated counterweight 1 can be effectively adjusted according to the gravity of different window glasses, so as to improve the practicality of the jig for simulating the bumping test of the lifter motor on the car door.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, a simulated motor mechanism is connected to the upper end of the steel wire rope 2. The simulated motor mechanism is mounted and fixed on the vibration test bench, so that the simulated motor mechanism drives the movement of the steel wire rope 2 through the fixed lifter motor, and at the same time, the vibration effects of different modes applied by the vibration test bench are combined to effectively test the steel wire rope 2 under the traction of the simulated counterweight 1, simulating the actual load of the output shaft of the lathe lifter motor.

[0020] It should be noted that a wire encoder 6 is provided on the tooling stand 81. The wire encoder 6 is provided with a connecting wire 61 that moves synchronously with the lower end of the wire rope 2. The wire encoder is connected to the wire rope 2 through the connecting wire 61, and monitors the descending distance of the wire rope 2 during the test, thereby converting the actual door sliding distance according to the descending distance or adjusting the side panel height according to the position of the fixed pulley 5.

[0021] The simulated motor mechanism includes a tooling base plate 3. The tooling base plate 3 is used to be installed and fixed on the vibration test bench, and the tooling base plate 3 is provided with a motor mounting plate for mounting and fixing the lifter motor. When the lifter motor is installed and fixed on the motor mounting plate, the lifter motor controls the rotation of the pulley on the motor mounting plate, and effectively drives the wire rope 2 by connecting the corresponding end of the wire rope 2 with the pulley. At the same time, when the vibration test bench outputs simulated vibration, it will effectively drive the lifter motor to vibrate, thereby achieving effective testing of the door or lifter motor.

[0022] In order to achieve accurate measurement results, the two ends of the wire rope 2 are connected at right angles to each other at the fixed pulley 5, and in order to achieve the distance measurement and monitoring accuracy of the wire encoder 6, a wire rope fixing structure is provided at the lower end of the wire rope 2, and the wire rope fixing structure is connected and fixed to the connecting rope 61.

[0023] like Figure 3As shown, the pull rope fixing structure is threadedly connected with a threaded column 71, and the corresponding end of the threaded column 71 is used to abut and fix with the wire rope 2. Therefore, it will play the role of adjusting the connection position between the pull rope fixing structure and the wire rope 2 and making the connecting pull rope 61 and the wire rope 2 maintain continuous parallel movement. At the same time, a stand 81 is set at the top of the tooling bracket 8. Figure 2 As shown, the fixed pulley 5 and the cable encoder are both fixed on the stand 81 , and the cable encoder 6 is fixed on the upper side of the fixed pulley 5 .

[0024] In summary, the present application provides a test fixture for simulating the bumping of a lifter motor on a car door. The test fixture for simulating the bumping of a lifter motor on a car door simulates the window glass load and vibration that the window lifter motor bears when it bumps on the car door. The test fixture for simulating the bumping of a lifter motor on a car door has the effects of easy installation, effective reduction of the load on the vibration test bench, compact structure to reduce the possibility of resonance, and obvious performance failure parameters, thereby effectively simplifying the initial verification of the window lifter motor in the bump test on the car door, and is suitable for separately analyzing the lifter motor with abnormal door or lifter bump test results.

[0025] The "first", "second", "third", "fourth", etc. (if any) referred to in this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods or devices.

[0026] It should be noted that the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A test tool for simulating the bumping of a lifter motor on a car door, characterized in that: The tooling support (8) comprises a fixed pulley (5) at the upper end of the tooling support (8), the fixed pulley (5) is connected to a steel wire rope (2), the bottom of the steel wire rope (2) is connected to a simulated counterweight (1), and the other end is connected to a simulated motor mechanism; the tooling support (8) is provided with a wire encoder (6), and the wire encoder (6) is provided with a connecting wire rope (61) that moves synchronously with the lower end of the steel wire rope (2).

2. The test tool for simulating the bumping of a lifter motor on a car door according to claim 1, characterized in that: The simulated motor mechanism comprises a tooling base plate (3), the tooling base plate (3) is used to be installed and fixed on the vibration test bench, and the tooling base plate (3) is provided with a motor mounting plate for mounting and fixing the lifter motor, and a corresponding end of the steel wire rope (2) is connected to the lifter motor installed on the motor mounting plate.

3. The test tool for simulating the bumping of a lifter motor on a car door according to claim 1, characterized in that: The two ends of the steel wire rope (2) are perpendicular to each other at the fixed pulley (5), and a pull rope fixing structure is provided at the lower end of the steel wire rope (2), and the pull rope fixing structure is connected and fixed to the connecting pull rope (61).

4. The test fixture for simulating the bumping of a lifter motor on a car door according to claim 3, characterized in that: The pull rope fixing structure is threadedly connected with a threaded column (71), and a corresponding end of the threaded column (71) is used for abutting and fixing with the steel wire rope (2).

5. The test tool for simulating the bumping of a lifter motor on a car door according to claim 1, characterized in that: A stand (81) is provided at the top end of the tooling bracket (8), the fixed pulley (5) is fixed on the stand (81), and the wire encoder (6) is fixed on the upper side of the fixed pulley (5).

6. The test tool for simulating the bumping of a lifter motor on a car door according to claim 1, characterized in that: The simulated counterweight (1) is detachably connected to the steel wire rope (2).

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