Test equipment for examining durability of spherical gas supply nozzle

Abstract

The utility model discloses test equipment for examining the durability of a spherical gas supply nozzle. The test equipment comprises a test bed, a motor lifting fixing frame, a motor, a variable adjusting joint, a counting marker, a counting sensor, a spherical gas supply nozzle fixing device, a frequency converter and a power supply. According to the test equipment, the spherical air supply nozzle can be easily fixed on the spherical air supply nozzle fixing device, then the frequency converter is adjusted to control the rotating speed of the motor, the shifting rate of the spherical air supply nozzle is controlled through the variable adjusting connector, and the counting sensor is triggered through the counting marker to record the shifting times. The device is light in weight, portable, free of space occupation, simple to operate, reasonable and beautiful in equipment layout, good in control interface, reliable in internal structure connection, firm in device fixation, and reasonable and neat in wiring. According to the utility model, the technical requirements of durability assessment are met, and the device has high reliability and good maintainability and operability.

Description

Technical Field

[0001] The utility model relates to testing equipment for the toggling ability and lifespan of a spherical air supply nozzle product, belonging to the technical field of product performance testing. Background Art

[0002] At present, various types of spherical air supply nozzle products are installed on aircraft as spherical air outlet structures for aircraft air conditioners. The test items for spherical air supply nozzles include the nozzle opening and closing usage rate, and whether the nozzle will get stuck or break after multiple openings and closings. In order to understand the actual situation of the product before mass production, it is usually necessary to test in advance whether the life of the spherical air supply nozzle meets the requirements and whether the reliability is satisfied, whether there is sticking and breaking during the opening and closing process, and whether the toggle resistance is too large (too large resistance will affect the feel of the product).

[0003] However, there is currently a lack of dedicated equipment for this type of test, and the test is mainly carried out through manual simulation operations. However, manual operation is not only time-consuming and laborious, but also cannot be carried out uninterruptedly for a long time. The test parameters (such as duration, frequency, force, etc.) are difficult to be precise, and the test results are not credible and consistent. It is impossible to perform unified tests on spherical air supply nozzle products with different structures. Therefore, it is necessary to design a test equipment that can be used for the durability test of existing spherical air supply nozzle products. Summary of the invention

[0004] In response to the problems recorded in the background technology, the utility model aims to provide a test equipment for durability assessment of spherical air supply nozzles, to achieve test records of the number of adjustments of different types of spherical air supply nozzles and accurate testing of life and performance, to solve the problem that the existing test requires manual adjustment of the nozzle, which is time-consuming and labor-intensive, and the problem that data is prone to errors due to manual recording, to improve the accuracy, reliability and consistency of the test, and at the same time to improve the test efficiency. Furthermore, not only can durability assessment be carried out under different test conditions, but also durability assessment can be uniformly achieved for different types of spherical air supply nozzles with the same set of equipment, and the test equipment is simple, portable, highly maintainable, and the test operation is convenient.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A test device for durability assessment of a spherical air supply nozzle, comprising:

[0007] Test bench;

[0008] A motor lifting and fixing frame, which is arranged on the end surface of the test bench and can move up and down in a direction perpendicular to the end surface of the test bench;

[0009] A motor, wherein the motor is fixedly connected to a motor lifting and fixing frame;

[0010] Variable adjustment joint, the variable adjustment joint is a rubber part with a spherical groove opened at the lower end, and the upper end of the variable adjustment joint is connected to the end of the output shaft of the motor;

[0011] Counting marker, the counting marker is fixed on the surface of the output shaft of the motor and rotates with the output shaft;

[0012] Counting sensor, the counting sensor is located in the rotation plane where the counting marker rotates with the output shaft of the motor;

[0013] Spherical gas supply nozzle fixing device, the spherical gas supply nozzle fixing device is arranged on the upper end surface of the test bench and is located below the variable adjustment joint. The spherical gas supply nozzle fixing device includes a chuck for clamping the spherical gas supply nozzle;

[0014] Frequency converter and power supply, the frequency converter and the power supply are installed in the test bench, and the frequency converter, the motor and the power supply are connected to each other.

[0015] As a solution, the motor lifting and fixing frame includes:

[0016] Fixed rod, the fixed rod is vertically connected to the upper end surface of the test bench;

[0017] Motor mounting frame, the motor mounting frame is provided with a positioning hole, a through hole for lifting and a pin hole. The motor mounting frame is slidably connected to the fixed rod through the through hole for lifting. The positioning hole and the pin hole intersect. One end of the motor mounting frame away from the fixed rod is connected to the motor;

[0018] Lifting operation unit, the lifting operation unit is mainly composed of a fixed block, a spring, a positioning rod, a handle, a connecting rod and a pin. The fixed block is located above the motor mounting frame and is connected to the fixed rod. One end of the positioning rod is fixed on the fixed block, and the other end is located in the positioning hole of the motor mounting frame. A plurality of through holes are opened on the positioning rod. One end of the spring is connected to the fixed block, and the other end is connected to the motor mounting frame. The end of the handle is hinged to the fixed block. One end of the connecting rod is hinged to the handle, and the other end is hinged to the motor mounting frame. The pin is inserted into the through hole of the positioning rod in the positioning hole through the pin hole of the motor mounting frame for positioning.

[0019] As a solution, the spherical gas supply nozzle fixing device includes two vises and a workbench. The first vise is placed on the workbench, and the second vise is placed between the movable jaw and the fixed jaw of the first vise.

[0020] As a solution, a frequency converter control panel and a counting display screen are also arranged on the test bench.

[0021] As a solution, the test equipment for the durability assessment of the spherical gas supply nozzle further includes a pressure sensor, and the pressure sensor is arranged on the variable adjustment joint.

[0022] As a solution, the test equipment for durability assessment of the spherical air supply nozzle also includes a scale and a pointer, wherein the scale is connected to the fixed block and the pointer is mounted on the motor mounting frame.

[0023] The utility model is based on the requirements of durability tests for most types of spherical air supply nozzles. The test bench adopts a horizontal surface, the spherical air supply nozzle is adjustable in speed, and the number of times of switching can be recorded. The spherical air supply nozzle is switched by a motor with a frequency converter and a variable adjustment joint, and the lower end of the spherical air supply nozzle is clamped by a spherical air supply nozzle fixing device. During the durability assessment, turn on the power supply in the workbench, fix the spherical air supply nozzle on the spherical air supply nozzle fixing device, select the variable adjustment joint according to the structural form of the spherical air supply nozzle, turn on the frequency converter and the counting display screen after installation, adjust the frequency converter according to the switching frequency requirements, and turn on the counting sensor to record the number of switching.

[0024] In view of the fact that there is no durable toggle test bench connected to the spherical air supply nozzle in the existing testing technology, the connection method and flexibility of the utility model can realize the toggle life test and assessment of spherical air supply nozzles of various specifications, thereby testing the durability of the product. The toggle amplitude and test times of the detection equipment are kept within the required range, and accurate readings (times and frequency) can be collected to meet the testing requirements of the product, providing a reliable basis for product quality judgment.

[0025] Compared with the existing testing methods, the utility model has the following characteristics:

[0026] (1) The test equipment has low cost, is easy to maintain, is light and portable, does not take up space, is easy to operate, has a reasonable and beautiful equipment layout, a good control interface, reliable equipment structure connection, firmly fixed components, and reasonable and neat wiring;

[0027] (2) The test equipment has good stability, high control accuracy (capable of controlling multiple parameters), high reliability and consistency, and can be used for testing all day long, greatly saving equipment and labor costs;

[0028] (3) The motor lifting and fixing frame structure design is adopted to facilitate the testing of different types of spherical air supply nozzles and unify the test equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a structural diagram of a test device used for durability assessment of spherical air supply nozzles;

[0030] Figure 2 It is an enlarged schematic diagram of the lifting operation unit structure;

[0031] In the figure: 1. Handle; 2. Counting mark; 3. Variable adjustment joint; 4. Ball air supply nozzle fixing device; 5. Test bench; 6. Spring; 7. Counting sensor; 8. Counting display screen; 9. Inverter control panel; 10. Wiring harness; 11. Scale. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter described in the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various modifications, substitutions and changes made according to the common technical knowledge and customary means in the field are included in the scope of the present invention.

[0033] like Figure 1 As shown, the test equipment for durability assessment of the spherical air supply nozzle includes a test bench 5, a motor lifting and fixing frame, a motor, a variable adjustment joint 3, a counting mark 2, a counting sensor 7, a spherical air supply nozzle fixing device 4, a frequency converter and a power supply. The test equipment can easily fix the spherical air supply nozzle on the spherical air supply nozzle fixing device 4, and then adjust the frequency converter to control the motor speed and then control the spherical air supply nozzle toggle rate through the variable adjustment joint 3, and trigger the counting sensor 7 through the counting mark 2 (generally a metal sheet or a metal block) to record the number of toggling times.

[0034] The motor lifting and fixing frame includes a fixing rod, a motor mounting frame and a lifting and lowering operation unit. The fixing rod is vertically connected to the upper end surface of the test bench 5; the motor mounting frame is provided with a positioning hole, a lifting through hole and a latch hole, the motor mounting frame is slidably connected to the fixing rod through the lifting through hole, the positioning hole and the latch hole intersect, and the end of the motor mounting frame away from the fixing rod is connected to the motor. Figure 2As shown in the figure, the lifting operation unit mainly consists of a fixed block, spring 6, positioning rod, handle 1, connecting rod and plug pin. The fixed block is located above the motor mounting bracket and is connected to the fixed rod. One end of the positioning rod is fixed to the fixed block, and the other end is located in the positioning hole of the motor mounting bracket. There are multiple through holes on the positioning rod. One end of spring 6 is connected to the fixed block, and the other end is connected to the motor mounting bracket. The end of handle 1 is hinged to the fixed block. One end of the connecting rod is hinged to handle 1 (the hinge point is not the hinge point between handle 1 and the fixed block), and the other end is hinged to the motor mounting bracket. The plug pin is inserted into the through hole of the positioning rod in the positioning hole through the plug pin hole of the motor mounting bracket. By rotating handle 1 relative to the fixed block, the connecting rod is triggered to move, causing the motor mounting bracket to rise or fall along the fixed rod. During the rising or falling process, the positioning rod slides in the positioning hole of the motor mounting bracket. When the variable adjustment joint 3 reaches the predetermined position, the plug pin is inserted into the plug pin hole and into the through hole of the positioning rod, thereby locking the position of the positioning rod and further maintaining the current position of the motor mounting bracket. Spring 6 serves the purpose of providing a force for the motor mounting bracket to reset to the initial position.

[0035] Among them, the spherical gas supply nozzle fixing device 4 includes two vises and a workbench. The first vise is placed on the workbench, and the second vise is placed between the movable jaw and the fixed jaw of the first vise. The workbench is similar to the workbench of a machine tool, being a plane with T-shaped grooves and holes. The T-shaped grooves are used to adjust the position of the first vise, facilitating the alignment with the variable adjustment joint 3 after clamping the spherical gas supply nozzle, and the holes are used to fix the position of the first vise. The space between the movable jaw and the fixed jaw of the second vise is used to clamp the spherical gas supply nozzle, and at the same time, the movable jaw and the fixed jaw of the first vise also play a role in restricting the spherical gas supply nozzle. When replacing spherical gas supply nozzles of different specifications, only the second vise needs to be replaced, thus simplifying the operation. Of course, a similar chuck can also be used as the spherical gas supply nozzle fixing device 4.

[0036] As an option, the test equipment for the durability assessment of the spherical gas supply nozzle further includes a pressure sensor provided on the variable adjustment joint 3. Through this pressure sensor, the pressure value acting on the spherical gas supply nozzle under the current conditions can be obtained to simulate the operating pressure of the spherical gas supply nozzle.

[0037] As an option, the test equipment for the durability assessment of the spherical gas supply nozzle further includes a scale 11 and a pointer. The scale 11 is connected to the fixed block, and the pointer is installed on the motor mounting bracket. By cooperating the scale 11 with the pointer, the dimensional information of the spherical gas supply nozzle and the position information of the current motor mounting bracket can be obtained, facilitating the adjustment of the test equipment to meet different types of spherical gas supply nozzles for testing.

[0038] The working principle of the test equipment for the durability assessment of a spherical gas supply nozzle is as follows: The variable adjustment joint 3 is used to simulate the operation of an operator's hand to drive the spherical gas supply nozzle, and at the same time, the rotation of the motor is used to simulate the rotation angle of the operator. When the output shaft of the motor rotates by an angle, the counting marker 2 triggers the counting sensor 7 to complete one count. Thus, the number of actions of the spherical gas supply nozzle can be collected within a set time to achieve the durability assessment. When it is necessary to test the durability at different frequencies, the frequency converter that controls the rotation frequency of the motor can be adjusted. The end face of the variable adjustment joint 3 has a spherical groove that can accommodate and closely adhere to the spherical surface of the spherical gas supply nozzle. Since the variable adjustment joint 3 is made of rubber material, it can also absorb the impact during rotation, increase friction, and prevent slipping.

[0039] The usage method of the test equipment for the durability assessment of a spherical gas supply nozzle is as follows:

[0040] Step 1: After confirming that the wiring harness 10 (the connecting wires for the motor, counting sensor 7, frequency converter, and power supply, etc.) is correctly connected, turn on the power supply inside the workbench 1, fix the spherical gas supply nozzle between the fixed clamp and the moving clamp of the vise, lock the two vises, select the variable adjustment joint 3 according to the structural form and specifications of the spherical gas supply nozzle, and make the spherical groove at the lower end of the variable adjustment joint 3 closely adhere to the spherical gas supply nozzle.

[0041] Step 2: Turn on the power supply of the frequency converter and the power supply of the counting sensor, adjust the frequency converter according to the required dialing frequency, turn on the power supply of the counting display screen to display and record the number of dials to form a cycle.

[0042] Step 3: According to the requirements of the durability assessment outline, observe the dialing frequency and number of times of the spherical gas supply nozzle, and record the durability assessment results.

[0043] The test equipment for the durability assessment of a spherical gas supply nozzle adopts an integrated design, which can easily fix the spherical gas supply nozzle on the test bench, adjust the frequency of the frequency converter to control the dialing rate, and record the number of dials through the counting sensor 7 and the counting display screen. The utility model can accurately control the dialing angle, position, and frequency of the spherical gas supply nozzle, the equipment cost is low, the equipment weight is light, and it is convenient to move.

[0044] The test equipment of the utility model can effectively improve the accuracy of the durability test and greatly save labor costs. It is superior to manual simulation dialing, and at the same time, it can ensure the continuity and consistency of the test, improve the test ability and test efficiency (the test equipment can be used both day and night).

[0045] As described above, it is only a specific embodiment of the present application. However, the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An experimental device for durability assessment of a spherical gas supply nozzle, characterized in that Comprising: A test bench (5); A motor lifting and fixing frame which is arranged on the upper end face of the test bench (5) and can move up and down in a direction perpendicular to the upper end face of the test bench (5); A motor which is fixedly connected to the motor lifting and fixing frame; A variable adjustment joint (3), which is a rubber part with a spherical groove opened at the lower end, and the upper end of the variable adjustment joint (3) is connected to the end of the output shaft of the motor; A counting marker (2) which is fixed on the surface of the output shaft of the motor and rotates with the output shaft; A counting sensor (7) which is located in the rotation plane where the counting marker (2) is located when rotating with the output shaft of the motor; A spherical air supply nozzle fixing device (4) which is arranged on the upper end face of the test bench (5) and is located below the variable adjustment joint (3), and the spherical air supply nozzle fixing device (4) includes a chuck for clamping the spherical air supply nozzle; An inverter and a power supply which are installed in the test bench (5), and the inverter, the motor and the power supply are connected to each other.

2. The test equipment for durability assessment of a spherical gas supply nozzle according to claim 1, characterized in that: The motor lifting and fixing frame includes: A fixed rod which is vertically connected to the upper end face of the test bench (5); A motor mounting frame which is provided with a positioning hole, a through hole for lifting and a pin hole. The motor mounting frame is slidably connected to the fixed rod through the through hole for lifting. The positioning hole and the pin hole intersect. One end of the motor mounting frame away from the fixed rod is connected to the motor; A lifting operation unit which mainly consists of a fixed block, a spring (6), a positioning rod, a handle (1), a connecting rod and a pin. The fixed block is located above the motor mounting frame and is connected to the fixed rod. One end of the positioning rod is fixed on the fixed block, and the other end is located in the positioning hole of the motor mounting frame. A plurality of through holes are opened on the positioning rod. One end of the spring (6) is connected to the fixed block, and the other end is connected to the motor mounting frame. The end of the handle (1) is hinged to the fixed block. One end of the connecting rod is hinged to the handle (1), and the other end is hinged to the motor mounting frame. The pin is inserted into the through hole of the positioning rod in the positioning hole through the pin hole of the motor mounting frame for positioning.

3. The test equipment for durability assessment of a spherical gas supply nozzle according to claim 1, wherein: The spherical air supply nozzle fixing device (4) includes two vises and a workbench. The first vise is placed on the workbench, and the second vise is placed between the movable jaw and the fixed jaw of the first vise.

4. The test equipment for durability assessment of a spherical gas supply nozzle according to claim 1, characterized in that: A frequency converter control panel (9) and a counting display screen (8) are also arranged on the test bench (5).

5. The test equipment for durability assessment of a spherical gas supply nozzle according to claim 1, characterized in that: It also includes a pressure sensor which is arranged on the variable adjustment joint (3).

6. The test equipment for durability assessment of a spherical gas supply nozzle according to claim 2, characterized in that: It also includes a scale (11) and a pointer. The scale (11) is connected to the fixed block, and the pointer is installed on the motor mounting frame.

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