Friction and wear testing machine for aircraft tire

Abstract

The utility model relates to the technical field of aircraft tire friction and wear tests, in particular to an aircraft tire friction and wear testing machine, which is provided with a friction mechanism and an impact mechanism, so that in the aircraft tire friction and wear test process, equipment can simulate friction caused by sudden contact between materials and the ground when the materials fall, and the friction and wear test efficiency is improved. The comprehensiveness of equipment inspection is improved; comprising a friction mechanism; the device further comprises a supporting mechanism, a lifting mechanism, a fixing mechanism and an impact mechanism, the lifting mechanism is installed on the supporting mechanism, the fixing mechanism is installed on the lifting mechanism, the friction mechanism is installed on the supporting mechanism, and the impact mechanism is installed at the lower end of the supporting mechanism. The supporting mechanism is used for supporting, the lifting mechanism is used for lifting, the fixing mechanism is used for fixing, the friction mechanism is used for friction testing, and the impact mechanism is used for impact testing.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation tire friction and wear testing, in particular to an aviation tire friction and wear testing machine. Background Art

[0002] Aircraft tires are the only parts of an aircraft that come into contact with the road surface. They support loads and transmit braking, driving, and steering forces to the ground. They play a vital role in the landing gear system and are key to ensuring the safety and performance of aircraft landing and taxiing.

[0003] Among existing aircraft tire friction and wear testers, for example, one disclosed in the utility model patent application number 201920698310.3 places a tire on a sanding disc to simulate driving on a road, wherein the friction coefficient of the sanding disc is set to be consistent with the friction coefficient of the road. By rotating the tire and driving it on the sanding disc, the changes in the tire are observed and the tire service life is measured.

[0004] However, during the aviation tire friction and wear test, it is impossible to test the friction generated by the material on the material during collision, which reduces the comprehensiveness of the test. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an aircraft tire friction and wear testing machine that is provided with a friction mechanism and an impact mechanism so that during the aircraft tire friction and wear test process, the equipment can simulate the friction caused by the sudden contact between the material and the ground when the material falls, thereby improving the comprehensiveness of the equipment inspection.

[0006] The utility model provides an aircraft tire friction and wear testing machine, comprising a friction mechanism; a supporting mechanism, a lifting mechanism, a fixing mechanism and an impact mechanism, wherein the lifting mechanism is mounted on the supporting mechanism, the fixing mechanism is mounted on the lifting mechanism, the friction mechanism is mounted on the supporting mechanism, and the impact mechanism is mounted at the lower end of the supporting mechanism;

[0007] The supporting mechanism performs support, the lifting mechanism performs lifting, the fixing mechanism performs fixing, the friction mechanism performs friction testing, and the impact mechanism performs impact testing; the material is supported by opening the supporting mechanism, the material is fixed by the fixing mechanism, the material is lifted by opening the lifting mechanism, the friction test is performed on the material by opening the friction mechanism, and the impact friction test is performed on the material by opening the impact mechanism, so that during the aviation tire friction and wear test, the equipment can simulate the friction caused by the sudden contact between the material and the ground when the material falls, thereby improving the comprehensiveness of the equipment inspection.

[0008] Preferably, the supporting mechanism comprises a rack, a roller frame, a lead screw one, a motor one and two groups of roller shafts one, the roller frame is slidingly installed on the rack, the lead screw one is rotatably installed in the rack and is in threaded engagement with the roller frame, the lead screw one has an input end extending to the left side of the rack, the motor one is installed at the left end of the rack and has an output end connected to the input end of the lead screw one, and the two groups of roller shafts one are rotatably installed on the roller frame and the rack respectively; the tire is supported by the roller shafts one, the lead screw one is driven to rotate by turning on the motor one, and the roller frame is moved by the threaded engagement with the rotating lead screw one, so as to support the tire.

[0009] Preferably, the lifting mechanism comprises a threaded block, a lead screw two, a motor two, two groups of connecting rods and a rotating frame, the threaded block is slidingly installed on the rack, the lead screw two is rotatably installed in the rack and is in threaded engagement with the threaded block, the lead screw two has an input end extending to the left side of the rack, the motor two is installed at the left end of the rack and has an output end connected to the input end of the lead screw two, the two groups of connecting rods are rotatably installed at the front ends of the threaded block and the rack respectively, the two groups of connecting rods are rotatably connected, and the rotating frame is rotatably installed at the front end of one group of connecting rods; the lead screw two is driven to rotate by turning on the motor two, the threaded block is moved by the threaded engagement with the rotating lead screw two, and the rotating frame is lifted by the connecting rods.

[0010] Preferably, the fixing mechanism comprises a fixing plate and a plurality of screw rods, the fixing plate is installed on the rotating frame, and the plurality of screw rods are installed on the fixing plate; the tire is fixed to the fixing plate by the screw rods.

[0011] Preferably, the friction mechanism comprises two groups of roller shafts two, a friction belt and a motor three, the two groups of roller shafts two are rotatably installed on the rack, the friction belt is wrapped around the two groups of roller shafts two, and the motor three is installed on the rack and has an output end connected to the input end of one group of roller shafts two; the roller shafts two are driven to rotate by turning on the motor three, and the material is friction tested by the rotating roller shafts two and the friction belt.

[0012] Preferably, the impact mechanism comprises an air cylinder, a base frame, two groups of support frames, two groups of springs and two groups of impact rollers, the air cylinder is installed at the lower end of the rack, the base frame is installed at the lower end of the air cylinder, the two groups of support frames are slidingly installed on the base frame by one group of springs respectively, and one group of impact rollers is rotatably installed on each support frame; the impact rollers are driven to descend by the base frame and the support frames to impact the material and perform impact friction test by turning on the air cylinder.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: through opening the supporting mechanism to support the material, through the fixing mechanism to fix the material, through opening the lifting mechanism to lift the material, through opening the friction mechanism to test the friction of the material, through opening the impact mechanism to test the friction of the material, so that in the aviation tire friction and wear test process, the equipment can simulate the friction caused by the sudden contact of the material with the ground when the material lands, and improve the comprehensiveness of equipment inspection. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the first axonometric structure schematic view of the utility model, and

[0015] Figure 2 It is the second axonometric structure schematic view of the utility model, and

[0016] Figure 3 It is the third axonometric structure schematic view of the utility model, and

[0017] Figure 4 It is the front view cross section axonometric structure schematic view of the utility model, and

[0018] Figure 5 It is the right view cross section axonometric structure schematic view of the utility model, and

[0019] Markings in the drawings: 1, supporting mechanism;11, rack;12, roller bracket;13, lead screw one;14, motor one;15, roller shaft one;2, lifting mechanism;21, threaded block;22, lead screw two;23, motor two;24, connecting rod;25, rotary frame;3, fixing mechanism;31, fixed plate;32, screw;4, friction mechanism;41, roller shaft two;42, friction belt;43, motor three;5, impact mechanism;51, air cylinder;52, base frame;53, support frame;54, spring;55, impact roller. DETAILED DESCRIPTION

[0020] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Embodiment 1

[0022] As Figures 1 to 5 shown, an aviation tire friction and wear tester, comprising a friction mechanism 4, further comprising a supporting mechanism 1, a lifting mechanism 2, a fixing mechanism 3 and an impact mechanism 5, the lifting mechanism 2 is installed on the supporting mechanism 1, the fixing mechanism 3 is installed on the lifting mechanism 2, the friction mechanism 4 is installed on the supporting mechanism 1, and the impact mechanism 5 is installed at the lower end of the supporting mechanism 1.

[0023] The support mechanism 1 supports, the lifting mechanism 2 lifts, the fixing mechanism 3 fixes, the friction mechanism 4 performs friction test, and the impact mechanism 5 performs impact test;

[0024] The support mechanism 1 comprises a rack 11, a roller frame 12, a lead screw 13, a motor 14 and two groups of roller shafts 15. The roller frame 12 is slidingly installed on the rack 11. The lead screw 13 is rotatably installed in the rack 11 and is in threaded cooperation with the roller frame 12. The input end of the lead screw 13 extends to the left side of the rack 11. The motor 14 is installed on the left end of the rack 11, and the output end of the motor 14 is connected to the input end of the lead screw 13. The two groups of roller shafts 15 are rotatably installed on the roller frame 12 and the rack 11 respectively.

[0025] The lifting mechanism 2 comprises a threaded block 21, a lead screw 22, a motor 23, two groups of connecting rods 24 and a rotating frame 25. The threaded block 21 is slidingly installed on the rack 11. The lead screw 22 is rotatably installed in the rack 11 and is in threaded cooperation with the threaded block 21. The input end of the lead screw 22 extends to the left side of the rack 11. The motor 23 is installed on the left end of the rack 11, and the output end of the motor 23 is connected to the input end of the lead screw 22. The two groups of connecting rods 24 are rotatably installed on the threaded block 21 and the front end of the rack 11 respectively. The two groups of connecting rods 24 are rotatably connected. The rotating frame 25 is rotatably installed on the front end of one group of connecting rods 24.

[0026] The fixing mechanism 3 comprises a fixing plate 31 and a plurality of screw rods 32. The fixing plate 31 is installed on the rotating frame 25. The plurality of screw rods 32 are installed on the fixing plate 31.

[0027] The friction mechanism 4 comprises two groups of roller shafts 41, a friction belt 42 and a motor 43. The two groups of roller shafts 41 are rotatably installed on the rack 11. The friction belt 42 is wrapped around the two groups of roller shafts 41. The motor 43 is installed on the rack 11, and the output end of the motor 43 is connected to the input end of one group of roller shafts 41.

[0028] The impact mechanism 5 comprises an air cylinder 51, a base frame 52, two groups of support frames 53, two groups of springs 54 and two groups of impact rollers 55. The air cylinder 51 is installed on the lower end of the rack 11. The base frame 52 is installed on the lower end of the air cylinder 51. The two groups of support frames 53 are slidingly installed on the base frame 52 through one group of springs 54. One group of impact rollers 55 is rotatably installed on each support frame 53.

[0029] The tire is supported through roller shaft 15, the screw rod 32 is used for fixing the tire on the fixed plate 31, the screw rod two 22 is driven to rotate through opening motor two 23, the screw rod two 22 is screwed with the threaded block 21 at the same time and moves the threaded block 21, the threaded block 21 moves at the same time and cooperates the connecting rod 24 to lift the rotating frame 25, the roller shaft two 41 is driven to rotate through opening motor three 43, the roller shaft two 41 rotates at the same time and cooperates the friction belt 42 to carry out the friction test to material, the impact roller 55 is driven to make the impact roller 55 descend through the bottom frame 52 and the support frame 53 to the impact roller 55 and make the impact friction test to material, so that the sudden contact of material and ground caused by material landing can be simulated in the aviation tire friction and wear test process, and the comprehensiveness of equipment inspection is improved.

[0030] As shown in Figures 1 to 5 The tire is supported through roller shaft 15, the screw rod 32 is used for fixing the tire on the fixed plate 31, the screw rod two 22 is driven to rotate through opening motor two 23, the screw rod two 22 is screwed with the threaded block 21 at the same time and moves the threaded block 21, the threaded block 21 moves at the same time and cooperates the connecting rod 24 to lift the rotating frame 25, the roller shaft two 41 is driven to rotate through opening motor three 43, the roller shaft two 41 rotates at the same time and cooperates the friction belt 42 to carry out the friction test to material, the impact roller 55 is driven to make the impact roller 55 descend through the bottom frame 52 and the support frame 53 to the impact roller 55 and make the impact friction test to material.

[0031] The motor one 14, the motor two 23, the motor three 43 and the cylinder 51 are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0032] The main function realized by the utility model is that: in the aviation tire friction and wear test working process, the friction mechanism and the impact mechanism are arranged, so that the sudden contact of material and ground caused by material landing can be simulated in the aviation tire friction and wear test process, and the comprehensiveness of equipment inspection is improved.

[0033] The above merely is the preferred implementation manner of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. An aircraft tire friction and wear testing machine, comprising a friction mechanism (4); characterized in that: The device further comprises a supporting mechanism (1), a lifting mechanism (2), a fixing mechanism (3) and an impact mechanism (5), wherein the lifting mechanism (2) is mounted on the supporting mechanism (1), the fixing mechanism (3) is mounted on the lifting mechanism (2), the friction mechanism (4) is mounted on the supporting mechanism (1), and the impact mechanism (5) is mounted at the lower end of the supporting mechanism (1); The supporting mechanism (1) performs support, the lifting mechanism (2) performs lifting, the fixing mechanism (3) performs fixing, the friction mechanism (4) performs friction testing, and the impact mechanism (5) performs impact testing.

2. The aircraft tire friction and wear testing machine according to claim 1, characterized in that: The supporting mechanism (1) comprises a platform (11), a roller frame (12), a lead screw (13), a motor (14) and two groups of roller shafts (15). The roller frame (12) is slidably mounted on the platform (11), the lead screw (13) is rotatably mounted in the platform (11), and the lead screw (13) and the roller frame (12) are threadedly matched. The input end of the lead screw (13) extends to the left side of the platform (11), the motor (14) is mounted on the left end of the platform (11), and the output end of the motor (14) is connected to the input end of the lead screw (13). The two groups of roller shafts (15) are rotatably mounted on the roller frame (12) and the platform (11).

3. The aircraft tire friction and wear testing machine according to claim 2, characterized in that: The lifting mechanism (2) comprises a threaded block (21), a second lead screw (22), a second motor (23), two groups of connecting rods (24) and a rotating frame (25), wherein the threaded block (21) is slidably mounted on the platform (11), the second lead screw (22) is rotatably mounted in the platform (11), and the second lead screw (22) is threadedly matched with the threaded block (21), the input end of the second lead screw (22) extends to the left side of the platform (11), the second motor (23) is mounted at the left end of the platform (11), and the output end of the second motor (23) is connected to the input end of the second lead screw (22), the two groups of connecting rods (24) are rotatably mounted on the threaded block (21) and the front end of the platform (11), the two groups of connecting rods (24) are rotatably connected, and the rotating frame (25) is rotatably mounted on the front end of one group of connecting rods (24).

4. The aircraft tire friction and wear testing machine according to claim 3, characterized in that: The fixing mechanism (3) comprises a fixing plate (31) and a plurality of sets of screw rods (32). The fixing plate (31) is mounted on the rotating frame (25), and the plurality of sets of screw rods (32) are mounted on the fixing plate (31).

5. The aircraft tire friction and wear testing machine according to claim 2, characterized in that: The friction mechanism (4) comprises two groups of roller shafts (41), a friction belt (42) and a motor (43). The two groups of roller shafts (41) are rotatably mounted on a platform (11). The friction belt (42) is covered and mounted on the two groups of roller shafts (41). The motor (43) is mounted on the platform (11), and the output end of the motor (43) is connected to the input end of the group of roller shafts (41).

6. The aircraft tire friction and wear testing machine according to claim 2, characterized in that: The impact mechanism (5) comprises a cylinder (51), a base frame (52), two groups of support frames (53), two groups of springs (54) and two groups of impact rollers (55). The cylinder (51) is mounted on the lower end of the platform (11), the base frame (52) is mounted on the lower end of the cylinder (51), the two groups of support frames (53) are respectively slidably mounted on the base frame (52) through a group of springs (54), and each group of support frames (53) is rotatably mounted with a group of impact rollers (55).

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