CN211402089U - Bionic microstructure friction and wear process information acquisition device - Google Patents

Abstract

A bionic microstructure friction and wear process information acquisition device belongs to the technical field of bionic microstructure friction and wear detection. In the utility model, a power mechanism is fixed to the front part of a bottom plate of a base of an experimental bench; two guide rails of the friction mechanism are respectively fixed to the experimental bench. On the top of the two U-shaped plates of the base; the high-speed camera I of the side monitoring device is fixed on the upper right rear of the flat plate II in the base of the test bench, and the infrared thermal imager is fixed on the upper left front of the flat plate II in the base of the test bench; The loading and top-view monitoring device is fixedly connected to the front of the neutral plate of the base of the test bench through the back of the base; the force sensor and the acceleration sensor in the utility model complement each other, so that the measurement accuracy of friction force is improved; the real-time feedback of the force sensor can realize accurate loading; Different friction samples can be replaced to explore the influence of different bionic microstructures on friction performance; different friction plates can be replaced to quickly and accurately monitor the friction mechanical properties, wear, temperature and stress changes of different samples in real time.

Description

A bionic microstructure friction and wear process information acquisition device

technical field

The utility model belongs to the field of bionic microstructure friction and wear detection, in particular to a bionic microstructure friction and wear process information acquisition device.

Background technique

Tribology is the science of the interaction between surfaces during the relative motion of objects. It is an interdisciplinary subject involving fields such as mechanics, physics and chemistry. The changes in surface topography, surface composition and structure caused by friction are very complex. Due to the diversity of surface properties, material types, lubrication states, and the effect of ambient atmosphere, the friction interface changes rapidly with time during the experiment, so an immediate in-situ analysis of the friction contact surface is required.

In the process of bionics research, the research on the friction and wear performance of the bionic form is also a very important research content, which is of great significance to the evaluation and optimization of the bionic structure performance. At present, most of the existing friction test instruments are carried out on the rotating friction plate, which will lead to inconsistent linear speed of friction at different positions of the sample, and the speed has a great influence on the wear condition. In addition, the current friction and wear measuring instruments cannot realize real-time information collection and analysis, and cannot observe the wear situation in the friction process in real time.

In summary, the development of biomimetic microstructure friction detection technology urgently needs a biomimetic microstructure friction and wear process information acquisition device, which can accurately and quickly test the friction mechanics and wear characteristics of the test sample and observe the friction and wear condition of the sample in real time. The design and development of a bionic microstructure friction and wear process information acquisition device has important significance and practical application value.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a bionic microstructure friction and wear process information acquisition device, which can quickly and accurately test the friction mechanical properties and wear properties of different samples.

The utility model is composed of a test bench base A, a power mechanism B, a friction mechanism C, a side monitoring device D and a loading and top-view monitoring device E. The power mechanism B passes through the bearing seat I14, the bearing seat II20 and the motor bracket 10 on it. The horizontal plate 11 is fixed on the front of the bottom plate 1 of the test bench base A; the bottom of the guide rail I30 of the friction mechanism C is fixed on the top of the U-shaped plate II8 of the test bench base A, and the bottom of the guide rail II31 of the friction mechanism C is fixed on the bottom. On the U-shaped plate I2 of the base A of the test bench; the high-speed camera I37 of the side monitoring device D is fixed on the upper right rear of the flat plate II6 in the base A of the test bench through the horizontal plate of the bracket I36, and the infrared heat of the side monitoring device D is The imager 40 is fixedly connected to the upper left front of the flat plate II6 in the test bench base A through the vertical rod 38;

The experimental bench base A is composed of a bottom plate 1, a U-shaped plate I2, a side plate I3, a flat plate I4, a vertical plate 5, a flat plate II6, a side plate II7 and a U-shaped plate II8, and the U-shaped plate I2 is fixed to the bottom plate 1. The top of the right rear; the lower end of the side plate I3 is fixed to the right side of the bottom plate 1 near the rear; the right end of the flat plate I4 is fixed to the upper end of the side plate I3 at a right angle, and the lower end of the vertical plate 5 is fixed to the upper left rear of the flat plate I4; the flat plate II6 It is fixed on the upper end of the side plate II7 in a T-shape; the lower end of the side plate II7 is fixed on the left side of the bottom plate 1 near the rear; the U-shaped plate II8 is fixed on the upper left rear of the bottom plate 1.

The power mechanism B is composed of a motor 9, a motor bracket 10, an elastic coupling 13, a bearing seat I14, a screw shaft 16, a slider 18 and a bearing seat II20, wherein the bracket 10 is composed of a vertical plate 12 and a horizontal plate 11. The right angle bracket is formed, the motor 9 is fixed to the front of the vertical plate 12 of the motor bracket 10, the output end of the motor 9 is fixed to the front end of the elastic coupling 13; The central threaded hole 17 of the block 18 is threadedly connected with the middle of the screw shaft 16; the rear end of the screw shaft 16 is connected with the inner ring of the bearing II21 of the bearing seat II20 by interference, and the middle of the screw shaft 16 is threadedly connected with the central threaded hole of the slider 18 , the near front end of the screw shaft 16 is connected with the inner ring of the bearing I15 of the bearing seat I14 by interference, and the front end of the screw shaft 16 is fixedly connected with the rear end of the elastic coupling 13 .

The friction mechanism C is composed of the reciprocating screw slider connector 22, the force sensor I23, the friction plate mounting plate connector 24, the friction plate 26, the left vertical plate 27, the right vertical plate 28, the front horizontal plate 25, and the acceleration sensor 29. , guide rail I30, guide rail II31, slider I32, slider II33, slider III34, slider IV35, right vertical plate, friction plate 26 is fixed between the left vertical plate 27 and the right vertical plate 28, and the top of the left vertical plate 27 The acceleration sensor 29 is fixed in the middle; the slider I32 is fixed to the back under the right vertical plate 28, the slider II33 is fixed to the front under the right vertical plate 28; the slider III34 is fixed to the rear under the left vertical plate 27, and the left vertical plate 27 The lower part is fixed to the front of the slider IV35; the slider I32 and the slider II33 are slidably connected to the guide rail II31, the slider III34 and the slider IV35 are slidably connected to the guide rail I30; the front ends of the left vertical plate 27 and the right vertical plate 28 are fixed to the front transverse plate 25. The guide rail I30, the force sensor I23 and the guide rail II31 are arranged and fixed in sequence from front to back.

The side monitoring device D is composed of a bracket I36, a high-speed camera I37, a vertical pole 38, a bracket II39 and an infrared thermal imager 40. The bracket I36 is a right-angle plate composed of a vertical plate and a horizontal plate, and the high-speed camera I37 is fixed to the bracket I36. The infrared thermal imager 40 is fixed on the left side of the bracket II 39, and the vertical rod 38 is fixed on the bottom of the bracket II 39.

The loading and top view monitoring device E is composed of friction sample 41, mounting rod 42, force sensor II 43, loading rod 44, nut I 46, sliding table connector 47, sliding table 48, lead screw 49, motor II 50, base 53 , The mounting frame II55 and the high-speed camera II56 are composed. The front of the sliding table connecting piece 47 is fixed with a pair of perforated plates 45 on the left, and the back of the sliding table connecting piece 47 is fixed with the sliding table 48 on the right; the base 53 is composed of an upper plate 51, a lower The motor II 50 is fixed to the upper plate 51 of the base 53, the upper end of the lead screw 49 is fixed to the output shaft of the motor II 50, the middle of the lead screw 49 is threadedly connected to the central threaded hole of the slide table 48, and the lead screw 49 The bottom end is movably connected to the center of the lower plate 54 of the base 53; the mounting bracket II55 is a right-angle S-shaped plate, the upper end of the mounting bracket II55 is fixed to the back of the sliding table connector 47 and left, and the front of the lower end of the mounting bracket II55 is fixed to the high-speed camera II56; friction; The sample 41, the mounting rod 42, the force sensor II 43, and the loading rod 44 are arranged and fixed in sequence from bottom to top. The upper part of the loading rod 44 passes through the pair of perforated plates 45 of the sliding table connecting piece 47, and is fixed by the nut I46.

The biomimetic microstructure friction sample is made of transparent material and has a biomimetic microstructure at the bottom, which is used to study the friction and wear properties of different biomimetic microstructures in friction experiments.

The working process of the utility model is as follows: before the experiment, it is necessary to measure the reciprocating component friction plate mounting plate connector 25 connected to the rear section of the force sensor I23, the slider I32, the slider II33, the slider III34, the slider IV35, the friction plate I32, the slider II33, the slider III34, the slider IV35, Total weight of plate 26, friction plate mounting plate, acceleration sensor 29, etc. At the beginning of the experiment, the bionic microstructure friction sample 41 was installed on the friction sample mounting rod 42, the reading at this time was read out by the force sensor II 43, and the loaded value at this time was adjusted to zero, and then passed through the motor screw mold. The group increases the load until the indication of the force sensor II43 reaches the specified value, and the signal of the force sensor II43 is used to feedback and adjust the control of the load by the motor screw module. Then start the motor 9 according to the speed required by the experiment to drive the reciprocating screw shaft 16 to rotate so that the reciprocating screw slider 18 reciprocates, and then drives the reciprocating screw slider connecting piece 22 to reciprocate, so that the friction plate mounting plate connecting piece 24, The friction plate 26, the friction plate mounting plate and other components reciprocate. At the same time, the force change in the friction process is measured by the force sensor I23, the acceleration change in the whole process is measured by the acceleration sensor 29, and then according to the weight of the reciprocating component connected behind the force sensor I23 measured before the experiment With the sum, the influence of inertial force on the measurement result of force sensor I23 can be calculated, so as to obtain accurate frictional force change data during the friction process. During the experiment, the high-speed camera I37 and the high-speed camera II56 photographed the wear of the sample from the side and above respectively; the infrared thermal imager 40 monitors the temperature distribution of the sample in real time.

The beneficial effects of the utility model are as follows: the influence of different biomimetic microstructures on friction performance can be explored by replacing friction samples of different biomimetic microstructures; the friction mechanical properties of the samples under different friction conditions can be quickly and accurately tested by replacing different friction plates and wear characteristics; the friction mechanical characteristics, wear conditions, temperature and stress changes of the sample can be monitored in real time; due to the reciprocating friction, the speed of each point of friction of the tested sample is consistent; the driving method of the reciprocating screw is used to The speed is stable; the force sensor and the acceleration sensor are used to compensate each other, and the measurement result of the friction force is very accurate.

Description of drawings

Figure 1 is the axonometric view of the bionic microstructure friction and wear process information acquisition device (front right)

Figure 2 is an axonometric view of the bionic microstructure friction and wear process information acquisition device (backward left)

Figure 3 is an axonometric view of the base A of the test bench (front right)

Figure 4 is an axonometric view of the power mechanism B (front right)

Figure 5 is an axonometric view of the friction mechanism structure C (front right)

Figure 6 is an axonometric view of the friction mechanism structure C (rear left)

Figure 7 is an axonometric view of the side monitoring device D (rear left)

Figure 8 is an axonometric view of the loading and top-view monitoring device E (rear left)

FIG. 9 is a rear view of the loading and top-view monitoring device E

Among them: A. Test bench base B. Power mechanism C. Friction mechanism D. Side monitoring device E. Loading and top view monitoring device 1. Bottom plate 2. U-shaped plate Ⅰ 3. Side plate Ⅰ 4. Flat plate Ⅰ 5. Vertical plate 6. Flat plate II 7. Side plate II 8. U-shaped plate II 9. Motor 10. Motor bracket 11. Horizontal plate 12. Vertical plate 13. Elastic coupling 14. Bearing with seat I 15. Bearing I 16. Reciprocating wire Rod shaft 17. Center threaded hole 18. Reciprocating screw slider 19. Flat plate 20. Bearing with seat II 21. Bearing II 22. Reciprocating screw slider connecting piece 23. Force sensor I 24. Friction plate mounting plate connecting piece 25 .Front horizontal plate 26. Friction plate 27. Left vertical plate 28. Right vertical plate 29. Acceleration sensor 30. Guide rail I 31. Guide rail II 32. Slider I 33. Slider II 34. Slider III 35. Slider IV 36 .Bracket Ⅰ 37. High-speed camera Ⅰ 38. Upright pole 39. Bracket Ⅱ 40. Infrared thermal imager 41. Bionic microstructure friction sample 42. Friction sample mounting rod 43. Force sensor Ⅱ 44. Loading rod 45. With hole Plate pair 46. Nut II 47. Slide table connector 48. Slide table 49. Lead screw 50. Motor II 51. Upper plate 52. Rear plate 53. Base 54. Lower plate 55. High-speed camera mounting bracket II 56. High-speed camera II

Detailed ways

The present invention will be described below with reference to the accompanying drawings.

As shown in Figures 1 to 3, the utility model is composed of a test bench base A, a power mechanism B, a friction mechanism C, a side monitoring device D, and a loading and top-view monitoring device E. The power mechanism B passes through the bearing seat I14 on it. , the bearing seat II20, the horizontal plate 11 of the motor bracket 10 are fixed on the front of the bottom plate 1 of the test bench base A; the bottom of the guide rail I30 of the friction mechanism C is fixed on the U-shaped plate II8 of the test bench base A, friction The lower part of the guide rail II31 of the mechanism C is fixed to the top of the U-shaped plate I2 of the experimental bench base A; the high-speed camera I37 of the side monitoring device D is fixed to the right rear of the flat plate II6 in the experimental bench base A through the horizontal plate of the bracket I36 Above, the infrared thermal imager 40 of the side monitoring device D is fixedly connected to the upper left front part of the flat plate II6 in the test bench base A through the vertical rod 38; Seat A in front of neutral plate 5.

As shown in Figure 3, the experimental bench base A is composed of a bottom plate 1, a U-shaped plate I2, a side plate I3, a flat plate I4, a vertical plate 5, a flat plate II6, a side plate II7 and a U-shaped plate II8. I2 is fixed on the upper right rear of the bottom plate 1; the lower end of the side plate I3 is fixed on the right side near the rear of the bottom plate 1; The upper surface of the rear; the flat plate II6 is fixed to the upper end of the side plate II7 in a T-shape; the lower end of the side plate II7 is fixed to the left side of the bottom plate 1 near the rear; the U-shaped plate II8 is fixed to the upper left rear of the bottom plate 1.

As shown in Figure 4, the power mechanism B is composed of a motor 9, a motor support 10, an elastic coupling 13, a bearing seat I14, a screw shaft 16, a slider 18 and a bearing seat II20, wherein the support 10 is composed of vertical The right-angle bracket composed of the plate 12 and the horizontal plate 11, the motor 9 is fixed to the front of the vertical plate 12 of the motor bracket 10, the output end of the motor 9 is fixed to the front end of the elastic coupling 13; the slider 18 is provided with a central threaded hole 17 and flat plate 19, the central threaded hole 17 of the slider 18 is threadedly connected to the middle of the screw shaft 16; The central threaded hole of the screw shaft 16 is threadedly connected, the near front end of the screw shaft 16 is connected with the inner ring of the bearing I15 of the bearing seat I14 by interference, and the front end of the screw shaft 16 is fixedly connected with the rear end of the elastic coupling 13.

As shown in FIG. 5 and FIG. 6 , the friction mechanism C is composed of the reciprocating screw slider connecting piece 22 , the force sensor I23 , the friction plate mounting plate connecting piece 24 , the friction plate 26 , the left vertical plate 27 , and the right vertical plate 28 , the front horizontal plate 25, the acceleration sensor 29, the guide rail I30, the guide rail II31, the slider I32, the slider II33, the slider III34 and the slider IV35, and the right vertical plate. The left vertical plate 27 and the right vertical plate 28 are fixedly connected The friction plate 26, the acceleration sensor 29 is fixed on the top of the left vertical plate 27; the slider I32 is fixed on the bottom of the right vertical plate 28; the slider II33 is fixed on the front of the bottom of the right vertical plate 28; The slider III34 is connected to the slider, and slider IV35 is fixed to the front under the left vertical plate 27; slider I32 and slider II33 are slidably connected with guide rail II31, slider III34 and slider IV35 are slidably connected with guide rail I30; left vertical plate 27 and right The front end of the vertical plate 28 is fixedly connected to the front transverse plate 25 , the guide rail I30 , the force sensor I23 and the guide rail II31 are arranged and fixed in sequence from front to back, and the rear end of the friction plate mounting plate connecting piece 24 is fixed to the front center of the front transverse plate 25 .

As shown in Figure 7, the side monitoring device D is composed of a bracket I36, a high-speed camera I37, a vertical pole 38, a bracket II39 and an infrared thermal imager 40. The bracket I36 is a right-angle plate composed of a vertical plate and a horizontal plate. The high-speed camera The I37 is fixed to the vertical plate of the bracket I36; the infrared thermal imager 40 is fixed to the left side of the bracket II39, and the vertical rod 38 is fixed to the bottom of the bracket II39.

As shown in FIGS. 8 and 9 , the loading and top-view monitoring device E consists of a friction sample 41 , a mounting rod 42 , a force sensor II 43 , a loading rod 44 , a nut I 46 , a sliding table connector 47 , and a sliding table 48 , screw 49, motor II 50, base 53, mounting bracket II 55 and high-speed camera II 56. The front of the sliding table connector 47 is fixed to the left with a pair of perforated plates 45, and the back of the sliding table connector 47 is fixed to the right. 48; The base 53 is composed of an upper plate 51, a lower plate 54 and a rear plate 52. The motor II 50 is fixed to the upper plate 51 of the base 53, the upper end of the lead screw 49 is fixed to the output shaft of the motor II 50, and the middle of the lead screw 49 is connected to the slide table 48. The bottom end of the lead screw 49 is movably connected with the center of the lower plate 54 of the base 53; the mounting bracket II 55 is a right-angle S-shaped plate, and the upper end of the mounting bracket II 55 is fixedly connected to the slide table connector 47. The front of the lower end of II55 is fixed to the high-speed camera II56; the friction sample 41, the mounting rod 42, the force sensor II43, and the loading rod 44 are arranged and fixed in sequence from bottom to top, and the upper part of the loading rod 44 passes through the slide table connecting piece 47 The plate with holes To 45, and fixed by nut I46.

Claims (6)

1. A bionic microstructure friction and wear process information acquisition device, characterized in that: by the test bench base (A), power mechanism (B), friction mechanism (C), side monitoring device (D) and loading and top-view monitoring The device (E) is composed, and the power mechanism (B) is fixed to the base of the test bench (A) through the bearing seat I (14), bearing seat II (20), and the horizontal plate (11) of the motor bracket (10). The upper part of the front part of the bottom plate (1) of the friction mechanism (C); the lower part of the guide rail I (30) of the friction mechanism (C) is fixed on the U-shaped plate II (8) of the test bench base (A); the guide rail II ( 31) The bottom is fixed to the top of the U-shaped plate I (2) of the base (A) of the experimental bench; the high-speed camera I (37) of the side monitoring device (D) is fixed to the experimental bench through the horizontal plate of the bracket I (36). On the top of the right rear part of the plate II (6) in the base (A), the infrared thermal imager (40) of the side monitoring device (D) is fixed to the plate II in the base (A) of the test bench through the vertical rod (38). The upper left front part of (6); the loading and top view monitoring device (E) is fixedly connected to the front of the neutral plate (5) of the base (A) of the test bench through the back of the base (53). 2. The bionic microstructure friction and wear process information acquisition device according to claim 1, characterized in that: the test bench base (A) consists of a bottom plate (1), a U-shaped plate I (2), a side plate I (3), flat plate I (4), vertical plate (5), flat plate II (6), side plate II (7) and U-shaped plate II (8), U-shaped plate I (2) is fixed on the bottom plate ( 1) On the top of the right rear; the lower end of the side plate I (3) is fixed to the right side of the bottom plate (1) near the rear; the right end of the flat plate I (4) is fixed at right angles to the upper end of the side plate I (3), 5) The lower end is fixed on the upper left rear of the plate I (4); the plate II (6) is fixed on the upper end of the side plate II (7) in a T-shape; the lower end of the side plate II (7) is fixed near the bottom plate (1). The left side of the rear; the U-shaped plate II (8) is fixed on the upper left rear of the bottom plate (1). 3. The bionic microstructure friction and wear process information collection device according to claim 1, characterized in that: the power mechanism (B) is composed of a motor (9), a motor support (10), an elastic coupling (13) , bearing seat I (14), screw shaft (16), slider (18) and bearing seat II (20), wherein the bracket (10) is a right-angle bracket composed of a vertical plate and a horizontal plate (11), The motor (9) is fixedly connected to the front of the vertical plate of the motor support (10), the output end of the motor (9) is fixedly connected to the front end of the elastic coupling (13); the slider (18) is provided with a central threaded hole (17) and the flat plate (19), the central threaded hole (17) of the slider (18) is threadedly connected to the middle of the screw shaft (16); the rear end of the screw shaft (16) is connected to the bearing II (21) of the bearing seat II (20). The inner ring is connected with interference, the middle part of the screw shaft (16) is threadedly connected with the central threaded hole of the slider (18), and the near front end of the screw shaft (16) passes through the inner ring of the bearing I (15) of the bearing seat I (14). The front end of the screw shaft (16) is fixedly connected with the rear end of the elastic coupling (13). 4. The bionic microstructure friction and wear process information acquisition device according to claim 1, wherein the friction mechanism (C) is composed of a reciprocating screw slider connecting piece (22), a force sensor I (23), Friction plate mounting plate connector (24), friction plate (26), left vertical plate (27), right vertical plate (28), front cross plate, acceleration sensor (29), guide rail I (30), guide rail II (31) ), slider I (32), slider II (33), slider III (34) and slider IV (35), right longitudinal plate, between the left longitudinal plate (27) and the right longitudinal plate (28) The friction plate (26) is fixed, and the acceleration sensor (29) is fixed on the top of the left vertical plate (27); The front fixed sliding block II (33); the left vertical plate (27) is fixed to the rear with the sliding block III (34), and the left vertical plate (27) is fixed to the front with the sliding block IV (35); the sliding block I ( 32) and slider II (33) are slidingly connected with guide rail II (31), slider III (34) and slider IV (35) are slidingly connected with guide rail I (30); the left longitudinal plate (27) and the right longitudinal plate (28) The front end is fixed to the front cross plate, the guide rail I (30), the force sensor I (23) and the guide rail II (31) are arranged and fixed in sequence from front to back, and the rear end of the friction plate mounting plate connector (24) is connected to the front The front center of the horizontal plate is fixed. 5. The bionic microstructure friction and wear process information collection device according to claim 1, wherein the side monitoring device (D) is composed of a bracket I (36), a high-speed camera I (37), a vertical pole (38) ), bracket II (39) and infrared thermal imager (40), bracket I (36) is a right-angle plate composed of a vertical plate and a horizontal plate, and the high-speed camera I (37) is fixed to the vertical plate of bracket I (36) ; The infrared thermal imager (40) is fixedly connected to the left side of the bracket II (39), and the vertical rod (38) is fixedly connected to the bottom of the bracket II (39). 6. The bionic microstructure friction and wear process information collection device according to claim 1, characterized in that: the loading and top-view monitoring device (E) is composed of a friction sample (41), an installation rod (42), a force Sensor II (43), Loading Rod (44), Nut I (46), Slider Connector (47), Slider (48), Lead Screw (49), Motor II (50), Base (53), Installation The frame II (55) and the high-speed camera II (56) are composed. The front side of the sliding table connecting piece (47) is fixed with a pair of perforated plates (45), and the back of the sliding table connecting piece (47) is fixed with the sliding table on the right side. (48); the base (53) is composed of an upper plate (51), a lower plate (54), and a rear plate (52). The motor II (50) is fixed on the upper plate (51) of the base (53), and the lead screw ( 49) The upper end is fixedly connected to the output shaft of the motor II (50), the middle part of the lead screw (49) is threadedly connected to the central threaded hole of the slide table (48), and the bottom end of the lead screw (49) is connected to the lower plate (54) of the base (53). ) center movable connection; the mounting bracket II (55) is a right-angle S-shaped plate, the upper end of the mounting bracket II (55) is fixed to the back of the sliding table connector (47), and the front of the lower end of the mounting bracket II (55) is fixed to the high-speed camera. II (56); friction sample (41), mounting rod (42), force sensor II (43), loading rod (44) are arranged and fixed in sequence from bottom to top, and the upper part of the loading rod (44) passes through the slide table The perforated plate pair (45) of the connecting piece (47) is fixedly connected by the nut I (46).

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