Tension testing machine for aircraft tire bearing framework

Abstract

The utility model relates to the technical field of aircraft tire bearing framework tension testing machines, in particular to an aircraft tire bearing framework tension testing machine, which starts a pressure applying mechanism to apply pressure to an aircraft tire, and applies pressure to the tire to change the tension of the tire so as to test the safety limit of the tension borne by the aircraft tire. The moving mechanism is started to ensure that the tire is kept stable and does not move or deform in the testing process, the temperature change of the tire in the testing process can be sensed and recorded in real time through the temperature testing mechanism, the heating mechanism is started to heat the tire, and the performance and safety of the aircraft tire under the high-temperature condition are simulated. Starting a refrigeration mechanism to provide a low-temperature environment required by the tire, and testing the change of tension which can be borne by the tire when the airplane runs in a cold region or in a high-altitude low-temperature environment; comprising a fixing mechanism; the device further comprises a pressure applying mechanism, a moving mechanism, a temperature testing mechanism, a heating mechanism and a refrigerating mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of an aviation tire load-bearing skeleton tension testing machine, in particular to an aviation tire load-bearing skeleton tension testing machine. Background Art

[0002] Aviation tires, commonly known as aircraft tires, are critical aircraft components with stringent safety and reliability requirements. Safe takeoff and landing rely on the unique functions of aircraft tires. During takeoff, landing, and taxiing, aircraft tires transmit driving and braking forces and are the only component in direct contact with the ground during landing. They are subject to high loads, high speeds, significant sinking, and significant deformation, so aircraft tires must be tension tested before use.

[0003] Existing testing devices, such as the aviation tire load-bearing frame tension testing machine disclosed in the invention patent application number CN201610949700.4, include a base plate, four sets of slides, four tension sliders, four limit plates, a reset spring, four tension arms, a compression tension plate, a pressure sensor and a push rod. The four tension arms evenly apply force to the four sides, and the pressure data is transmitted to the pressure sensor, which can realize the tension test of the tire.

[0004] However, since aircraft tires need to be able to work normally in an extreme temperature range from -40 degrees Celsius to around 70 degrees Celsius, in order to ensure the flight safety of aircraft tires, it is urgent to provide a new set of equipment to simulate the changes in the tension of aircraft tires in extreme environments to test the tension of aircraft tires. Utility Model Content

[0005] To solve the above technical problems, the utility model provides an aircraft tire load-bearing frame tension testing machine that tests the tension borne by aircraft tires in high and low temperature environments to clarify the safety performance of aircraft tires under different conditions.

[0006] The utility model discloses an aircraft tire load-bearing skeleton tension testing machine, comprising a fixing mechanism; a pressure applying mechanism, a moving mechanism, a temperature testing mechanism, a heating mechanism and a cooling mechanism. The tension applying mechanism is installed on the top of the fixing mechanism to apply pressure to the aircraft tire; the moving mechanism is installed on the fixing mechanism to fix the aircraft tire; the temperature testing mechanism is installed on the fixing mechanism to measure the ambient temperature of the aircraft tire; the heating mechanism is installed on the fixing mechanism to test whether a high temperature environment affects the tension borne by the aircraft tire; the cooling mechanism is installed on the fixing mechanism to test whether an ultra-low temperature environment affects the tension borne by the aircraft tire; the pressure applying mechanism is started to apply pressure to the aircraft tire; By applying pressure to the tire to cause the tire tension to change, the safety limit of the tension that the aircraft tire can withstand and the life and durability of the aircraft tire are tested. The moving mechanism is activated to ensure that the tire remains stable during the test and does not move or deform. The temperature testing mechanism can sense and record the temperature changes of the tire during the test in real time. The change in the tension that the tire withstands during the application of pressure with the change in temperature can be tested. The heating mechanism is activated to heat the tire to simulate the performance and safety of aircraft tires under high temperature conditions. The refrigeration mechanism is activated to provide the low temperature environment required by the tire to test the change in the tension that the tire can withstand when the aircraft is operating in cold areas or at high altitude and low temperature environments.

[0007] Preferably, the fixing mechanism includes a foundation, an aircraft tire, a test chamber, two sliding doors and two hydraulic cylinders. A groove is provided on the foundation, the aircraft tire is placed on the top of the foundation, the test chamber is installed on the top of the foundation, the two sliding doors are installed on both sides of the test chamber, and the two hydraulic cylinders are installed on the two sliding doors. The test chamber provides an environment for testing the aircraft tire. For the accuracy of tire testing, when simulating temperature changes, the hydraulic cylinder is started to make the sliding door seal the test chamber, so that the temperature change only affects the tire, reducing the impact of the temperature change on other equipment.

[0008] Preferably, the tensioning mechanism includes a slide rail, a first rack, a slider, a first motor, two connecting rods and two pressure blocks. The slide rail is installed at the top of the foundation, the first rack is installed on the slide rail, the slider is slidably installed on the slide rail, the first motor is installed on the side end of the slider, and a gear is provided on the output end of the first motor. One end of the two connecting rods is respectively connected to the side end of the slider, and the other end is respectively connected to the two pressure blocks, and the bottom ends of the two pressure blocks are provided with positioning blocks; starting the first motor causes the gear and the first rack to engage in transmission to drive the slider to slide on the slide rail, so that the two connecting rods drive the two pressure blocks to move relative to each other along the groove on the foundation, continuously applying tension to the aircraft tire, and testing the tension borne by the tire and the life and durability of the tire.

[0009] Preferably, the moving mechanism comprises a fixed shaft, a second rack, a second motor and a gear, the fixed shaft is installed on the detection chamber, the second rack is installed on the fixed shaft, the second motor is installed on the fixed shaft, and a gear is arranged on the output end of the second motor; the fixed shaft fixes the aviation tire, ensures that the tire remains stable during the test and does not move or deform, so that the performance and durability of the tire can be accurately tested, when the temperature changes, the second motor is started to drive the gear to engage with the second rack, so that the fixed shaft moves upward, reducing the influence of temperature change on the fixed shaft, when the temperature reaches a certain value, the fixed shaft moves downward to fix the detection chamber, ensuring the accuracy and reliability of the test results.

[0010] Preferably, the temperature testing mechanism comprises a temperature tester and a probe, the temperature tester is installed on the detection chamber, and the probe is installed on the temperature tester; the real-time value of the temperature can be transmitted to the temperature tester through the probe, the temperature change of the tire during the test can be sensed and recorded in real time, and the change of the tension of the tire during the tension application process with the change of the temperature can be tested.

[0011] Preferably, the heating mechanism comprises a heating pipe, and the heating pipe is installed on the inner wall of the detection chamber; the detection chamber is sealed through the cooperation of the sliding door and the hydraulic cylinder, the fixed shaft is moved out of the detection chamber by starting the second motor, the temperature in the detection chamber is increased by starting the heating pipe, when the temperature reaches a certain value, the aviation tire is fixed by starting the moving mechanism, the detection chamber is opened, and the tension of the aviation tire is applied through the two pressing blocks, the high-temperature environment can be simulated, the tension that can be borne by the tire under high-temperature conditions and the performance and safety of the tire under high-temperature conditions can be tested.

[0012] Preferably, the refrigeration mechanism comprises a refrigeration machine, and the refrigeration machine is installed at the top end of the foundation; the super-low-temperature condition is provided by starting the refrigeration machine, and the tension that can be borne by the tire when the airplane runs in a cold region or a high-altitude low-temperature environment and the safety performance under the cold environmental condition are tested.

[0013] The utility model has the advantages that the pressure applying mechanism is started to apply pressure to the aviation tire, the tension of the tire changes by applying pressure to the tire, the safety limit of the tension borne by the aviation tire and the service life and durability of the aviation tire are tested, the moving mechanism is started to ensure that the tire remains stable during the test and does not move or deform, the temperature testing mechanism can sense and record the temperature change of the tire during the test in real time, the change of the tension of the tire during the pressure application process with the change of the temperature can be tested, the heating mechanism is started to heat the tire, the performance and safety of the aviation tire under high-temperature conditions are simulated, the refrigeration mechanism is started to provide the low-temperature environment required by the tire, and the change of the tension that can be borne by the tire when the airplane runs in a cold region or a high-altitude low-temperature environment is tested. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 This is an axonometric structural diagram of the present utility model;

[0015] Figure 2 This is a schematic diagram of the axonometric structure of the fixing mechanism and the tension applying mechanism of the present invention;

[0016] Figure 3 This is a schematic diagram of the axonometric structure of the mobile mechanism and temperature testing mechanism of the utility model;

[0017] Figure 4 It is an axonometric structural diagram of the heating mechanism and the refrigeration mechanism of the utility model.

[0018] Markings in the accompanying drawings: 01, fixing mechanism; 11, foundation; 12, aircraft tire; 13, inspection room; 14, sliding door; 15, hydraulic cylinder; 02, pressure-applying mechanism; 21, slide rail; 22, first rack; 23, slider; 24, first motor; 25, connecting rod; 26, pressure block; 03, moving mechanism; 31, fixed shaft; 32, second rack; 33, second motor; 34, gear; 04, temperature testing mechanism; 41, temperature detector; 42, probe; 05, heating mechanism; 51, heating tube; 06, refrigeration mechanism; 61, refrigerator. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, the following will provide a clear, complete, and accurate description of the present invention with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the present invention more comprehensive.

[0020] The utility model discloses an aviation tire bearing framework tension testing machine, including fixed establishment 01, still include exert pressure mechanism 02, moving mechanism 03, temperature test mechanism, heating mechanism 05 and refrigeration mechanism 06, exert pressure mechanism 02 installs at the top of fixed establishment 01 and exerts pressure to aviation tire, moving mechanism 03 installs on fixed establishment 01 and fixes aviation tire, temperature test mechanism installs on fixed establishment 01 and measures the environmental temperature where aviation tire is located, heating mechanism 05 installs on fixed establishment 01, tests whether the tension that aviation tire bears is influenced under high temperature environment, refrigeration mechanism 06 installs on fixed establishment 01 and tests whether the tension that aviation tire bears is influenced under super low temperature environment, fixed establishment 01 includes ground base 11, aviation tire 12, detection chamber 13, two sliding doors 14 and two hydraulic cylinders 15, the recess is provided on ground base 11, and aviation tire 12 is placed at the top of ground base 11, and detection chamber 13 is installed at the top of ground base 11, and two sliding doors 14 are installed at the both sides of detection chamber 13 respectively, and two hydraulic cylinders 15 are installed on two sliding doors 14 respectively, exert pressure mechanism 02 includes slide rail 21, first rack 22, sliding block 23, first motor 24, two connecting rods 25 and two pressure blocks 26, and slide rail 21 is installed at the top of ground base 11, and first rack 22 is installed on slide rail 21, and sliding block 23 is slidably installed on slide rail 21, and first motor 24 is installed at the side end of sliding block 23, and the output end of first motor 24 is provided with gear, and one end of two connecting rods 25 is connected with the side end of sliding block 23 respectively, and the other end is connected with two pressure blocks 26 respectively, and the bottom of two pressure blocks 26 is provided with positioning block, moving mechanism 03 includes fixed shaft 31, second rack 32, second motor 33 and gear 34, fixed shaft 31 is installed on detection chamber 13, second rack 32 is installed on fixed shaft 31, second motor 33 is installed on fixed shaft 31, and the output end of second motor 33 is provided with gear 34, temperature test mechanism includes temperature tester 41 and probe 42, temperature tester 41 is installed on detection chamber 13, and probe 42 is installed on temperature tester 41, heating mechanism 05 includes heating pipe 51, and heating pipe 51 is installed on the inner wall of detection chamber 13, refrigeration mechanism 06 includes refrigerator 61, and refrigerator 61 is installed at the top of ground base 11.

[0021] As Figures 1 to 4As shown, the utility model is an aircraft tire load-bearing skeleton tension testing machine. When it is working, the detection chamber 13 first provides an environment for testing the aircraft tire 12. In order to ensure the accuracy of tire testing, when simulating temperature changes, the hydraulic cylinder 15 is started to make the sliding door 14 seal the detection chamber 13, so that the temperature change only affects the tire, reducing the impact of temperature changes on other equipment. The fixed shaft 31 fixes the aircraft tire 12 to ensure that the tire remains stable during the test and does not move or deform, so that the performance and durability of the tire can be accurately tested. When the temperature changes, the second motor 33 is started to make the gear 34 mesh with the second rack 32 to drive the fixed shaft 31 upward, reducing the impact of temperature changes on the fixed shaft 31. When the temperature reaches a certain value, it moves downward to fix the detection chamber 13 to ensure the accuracy and reliability of the test results. The first motor 24 is started to make the gear and the first rack 22 mesh to drive the slider 23 to slide on the slide rail 21. The two connecting rods 25 drive the two pressure blocks 26 to move relative to each other along the grooves on the foundation 11, continuously applying pressure to the aircraft tire 12. By applying pressure to the tire, the tension of the tire changes, so as to test the tension borne by the tire and the life and durability of the tire. Then, the testing chamber 13 is sealed by the cooperation of the sliding door 14 and the hydraulic cylinder 15, and the second motor 33 is started to move the fixed shaft 31 outside the testing chamber 13. The heating tube 51 is started to increase the temperature in the testing chamber 13. When the temperature reaches a certain value, the moving mechanism 03 is started to fix the aircraft tire 12, and the testing chamber 13 is opened. Pressure is applied to the aircraft tire 12 by the two pressure blocks 26. The pressure value can simulate the tension that the aircraft tire can withstand in a high temperature environment, as well as the performance and safety of the tire under high temperature. Then, the refrigerator 61 is started to provide ultra-low temperature conditions to test the tension that the tire can withstand when the simulated aircraft is running in a cold area or in a high-altitude low-temperature environment, as well as the safety performance under cold environment conditions.

[0022] The hydraulic cylinder 15, the first motor 24 and the second motor 33 of the utility model are purchased on the market, and technicians in this industry only need to install and operate them according to the accompanying instruction manuals without the need for creative work by technicians in this field.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be considered within the scope of protection of the present invention.

Claims

1. An aircraft tire load-bearing skeleton tension testing machine, comprising a fixing mechanism (01); characterized in that: The invention also includes a pressure applying mechanism (02), a moving mechanism (03), a temperature testing mechanism, a heating mechanism (05) and a cooling mechanism (06). The pressure applying mechanism (02) is installed on the top of the fixing mechanism (01) to apply pressure to the aircraft tire. The moving mechanism (03) is installed on the fixing mechanism (01) to fix the aircraft tire. The temperature testing mechanism is installed on the fixing mechanism (01) to measure the ambient temperature of the aircraft tire. The heating mechanism (05) is installed on the fixing mechanism (01) to test whether a high temperature environment affects the tension borne by the aircraft tire. The cooling mechanism (06) is installed on the fixing mechanism (01) to test whether an ultra-low temperature environment affects the tension borne by the aircraft tire.

2. The aircraft tire load-bearing skeleton tension testing machine according to claim 1, characterized in that: The fixing mechanism (01) comprises a foundation (11), an aircraft tire (12), a detection chamber (13), two sliding doors (14) and two hydraulic cylinders (15). A groove is provided on the foundation (11). The aircraft tire (12) is placed on the top of the foundation (11). The detection chamber (13) is installed on the top of the foundation (11). The two sliding doors (14) are respectively installed on both sides of the detection chamber (13). The two hydraulic cylinders (15) are respectively installed on the two sliding doors (14).

3. The aircraft tire load-bearing skeleton tension testing machine according to claim 2, characterized in that: The pressure applying mechanism (02) comprises a slide rail (21), a first rack (22), a slider (23), a first motor (24), two connecting rods (25) and two pressure blocks (26). The slide rail (21) is installed at the top of the foundation (11), the first rack (22) is installed on the slide rail (21), the slider (23) is slidably installed on the slide rail (21), the first motor (24) is installed at the side end of the slider (23), and a gear is provided on the output end of the first motor (24). One end of the two connecting rods (25) is respectively connected to the side end of the slider (23), and the other end is respectively connected to the two pressure blocks (26), and the bottom ends of the two pressure blocks (26) are both provided with positioning blocks.

4. The aircraft tire load-bearing skeleton tension testing machine according to claim 2, characterized in that: The moving mechanism (03) includes a fixed shaft (31), a second rack (32), a second motor (33) and a gear (34). The fixed shaft (31) is mounted on the detection chamber (13), the second rack (32) is mounted on the fixed shaft (31), the second motor (33) is mounted on the fixed shaft (31), and a gear (34) is provided on the output end of the second motor (33).

5. The aircraft tire load-bearing skeleton tension testing machine according to claim 2, characterized in that: The temperature testing mechanism comprises a temperature tester (41) and a probe (42). The temperature tester (41) is installed on the detection chamber (13), and the probe (42) is installed on the temperature tester (41).

6. The aircraft tire load-bearing skeleton tension testing machine according to claim 2, characterized in that: The heating mechanism (05) includes a heating tube (51), which is installed on the inner wall of the detection chamber (13).

7. The aircraft tire load-bearing skeleton tension testing machine according to claim 2, characterized in that: The refrigeration mechanism (06) includes a refrigerator (61), which is installed on the top of the foundation (11).

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