Drum type friction plate structure stress detection device

Abstract

The utility model discloses a drum-type friction plate structure stress detection device which comprises a substrate, an elastic buffer seat is fixedly installed at the bottom of the substrate, a detection box is fixedly installed at the top of the substrate, a box door is movably installed on the front face of the detection box, an electric guide rail is fixedly installed at the top of an inner cavity of the detection box, and the electric guide rail is movably installed on the front face of the detection box. An electric telescopic rod is fixedly mounted on a sliding part of the electric guide rail, an equipment mounting frame is fixedly mounted at the output end of the electric telescopic rod, and two illuminating lamps are fixedly mounted at the bottom of the equipment mounting frame; when the draught fan is started, airflow is pushed in one direction, the airflow enters the air filtering box through the air duct, dust is filtered out through the dust filtering plate, then the airflow enters the detection box, the airflow in the detection box is pushed out, smoke generated by braking during detection operation is reduced, and it is avoided that images collected by the high-speed camera are affected; the accuracy of image acquisition by dust and smoke dust is reduced, and auxiliary operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of drum-type friction plate structure stress detection, in particular to a drum-type friction plate structure stress detection device. Background Art

[0002] Drum brakes: Drum brakes, also known as block brakes, brake by pressing brake pads against the brake wheel. Drum brakes are an early braking system design. The brake drum design was used on horse-drawn carriages as early as 1902, but it wasn't widely adopted in the automotive industry until around 1920. The mainstream drum brake is the inward-expanding type, with the brake pads (brake shoes) located inside the brake wheel. When braking, the pads expand outward, rubbing against the inside of the brake wheel to achieve the desired effect.

[0003] During the production process of drum friction plates, stress testing is required to verify the production quality. Existing structural stress testing mostly involves attaching strain gauges to detect stress changes. However, this method has high requirements for detection operations and cannot effectively record the friction structure changes and braking process during the detection process. The collected detection data is relatively simple and cannot meet the detection needs. Based on this, a structural stress detection device for drum friction plates is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a drum-type friction plate structure stress detection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drum-type friction plate structure stress detection device, comprising a base plate, an elastic buffer seat is fixedly installed on the bottom of the base plate, a detection box is fixedly installed on the top of the base plate, a box door is movably installed on the front of the detection box, an electric guide rail is fixedly installed on the top of the inner cavity of the detection box, an electric telescopic rod is fixedly installed on the sliding part of the electric guide rail, an equipment mounting frame is fixedly installed on the output end of the electric telescopic rod, two lighting lamps are fixedly installed on the bottom of the equipment mounting frame, a high-speed camera is fixedly installed on the bottom of the equipment mounting frame, a mounting support seat is fixedly installed on the bottom of the inner cavity of the detection box, a two-way hydraulic telescopic cylinder is fixedly installed on the top of the mounting support seat, and the two-way hydraulic telescopic cylinder is fixedly installed on the top of the mounting support seat. The output end of the cylinder is fixedly installed with a drum-type friction plate mounting bracket, the input end of the bidirectional hydraulic telescopic cylinder is connected with an oil pipeline, the bottom end of the oil pipeline is connected with a hydraulic oil power device, the outer side of the mounting support seat is sleeved with a positioning bearing, the outer side of the positioning bearing is sleeved with a turntable, the top of the turntable is fixedly installed with a friction plate, the outer side of the turntable is sleeved with a driven gear ring, the outer side of the driven gear ring is meshed with a driving gear, the top of the driving gear is connected to a servo motor, and the bottom of the turntable is slidably installed with a sliding support seat, and air filter boxes are fixedly installed on both sides of the detection box, and a dust filter plate is movably inserted inside the air filter box. The end of the air filter box away from the detection box is connected with an air cylinder, and a fan is movably installed inside the air cylinder.

[0006] Preferably, the hydraulic oil power device is fixedly installed inside the elastic buffer seat, and the oil pipeline is fixedly passed through the base plate and the detection box and extends to the top of the mounting support seat.

[0007] Preferably, the servo motor is fixedly mounted on the inner wall of the detection box via a bracket.

[0008] Preferably, the bottom of the sliding support seat is fixedly mounted on the bottom of the inner cavity of the detection box, and the top of the sliding support seat is in sliding contact with the bottom of the turntable.

[0009] Preferably, the dust filter plate is movable through the air filter box and extends to the top of the air filter box. A sealing strip is provided at the connection between the dust filter plate and the air filter box. The opposite side of the air filter box is connected to the interior of the detection box, and the wind direction of the fan is the same.

[0010] Preferably, the positioning bearing, the mounting support seat and the turntable are concentric circles, and the bidirectional hydraulic telescopic cylinder is located in the middle part of the friction disc.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: when the structure is in use, the user opens the box door and installs the drum friction plate to be tested on the outside of the drum friction plate mounting frame, and then closes the box door and starts the fan. The fan directs the airflow along the air duct and the air filter box into the interior of the test box for removal, reducing the influence of smoke and dust accumulation on the acquisition image, and then starts the hydraulic oil power device to cause the two-way hydraulic telescopic cylinder to extend and fit the drum friction plate mounting frame and the drum friction plate to the inner side of the friction disk. At the same time, the servo motor starts to rotate and drives the driving gear to rotate, and drives the meshing driven gear ring to rotate through the driving gear, and drives the turntable to rotate through the driven gear ring, thereby causing the friction disk to rotate. The friction disk rotates and extends through the two-way hydraulic telescopic cylinder, causing the drum friction plate to rotate. The plate mounting frame and the drum friction plate are in contact with the inner side of the friction disc and generate friction force, which is convenient for simulating the braking process. Then, the electric telescopic rod is moved by operating the electric guide rail, and the height of the equipment mounting frame is adjusted by the electric telescopic rod. Then, the lighting is illuminated around the installation support base. The position of the lighting and high-speed camera is changed by the electric guide rail and the electric telescopic rod. Then, the operator uses the high-speed camera to collect friction images from multiple angles. In addition, the drum friction plate mounting frame can be controlled to contact the friction disc through the two-way hydraulic telescopic cylinder to simulate the braking and long braking conditions. The image is collected by the high-speed camera, which is convenient for subsequent analysis by the image analysis system of other equipment, facilitating multi-angle data collection, and increasing the image collection process to facilitate the collection of data to assist in the analysis of structural forces.

[0012] Through the provided wind tube and air filter box, when the fan is started, the airflow is pushed in one direction, and the airflow enters the interior of the air filter box through the wind tube, and enters the interior of the detection box after filtering the dust through the dust filter plate, pushing the airflow inside the detection box out, reducing the smoke and dust generated by braking during the detection operation, avoiding affecting the image acquisition of the high-speed camera, reducing the impact of dust and smoke on the accuracy of image acquisition, and facilitating auxiliary operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front three-dimensional appearance structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the rear-view stereoscopic appearance structure of the utility model.

[0015] Figure 3 It is a front sectional structural schematic diagram of the utility model.

[0016] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0017] In the figure: 1. Base plate; 2. Elastic buffer seat; 3. Box door; 4. Electric guide rail; 5. Inspection box; 6. Air filter box; 7. Air duct; 8. Fan; 9. Dust filter plate; 10. Electric telescopic rod; 11. Equipment mounting frame; 12. Lighting lamp; 13. High-speed camera; 14. Hydraulic oil power unit; 15. Oil pipeline; 16. Servo motor; 17. Driving gear; 18. Driven gear ring; 19. Sliding support seat; 20. Positioning bearing; 21. Friction plate; 22. Bidirectional hydraulic telescopic cylinder; 23. Drum friction plate mounting frame; 24. Mounting support seat; 25. Turntable. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1-4 The utility model provides a technical solution: a drum-type friction plate structure stress detection device, comprising a base plate 1, an elastic buffer seat 2 is fixedly installed at the bottom of the base plate 1, a detection box 5 is fixedly installed on the top of the base plate 1, a box door 3 is movably installed on the front of the detection box 5, an electric guide rail 4 is fixedly installed on the top of the inner cavity of the detection box 5, an electric telescopic rod 10 is fixedly installed on the sliding part of the electric guide rail 4, an equipment mounting frame 11 is fixedly installed on the output end of the electric telescopic rod 10, two lighting lamps 12 are fixedly installed on the bottom of the equipment mounting frame 11, a high-speed camera 13 is fixedly installed on the bottom of the equipment mounting frame 11, a mounting support seat 24 is fixedly installed on the bottom of the inner cavity of the detection box 5, a bidirectional hydraulic telescopic cylinder 22 is fixedly installed on the top of the mounting support seat 24, and the output end of the bidirectional hydraulic telescopic cylinder 22 is fixedly installed There is a drum friction plate mounting frame 23, the input end of the two-way hydraulic telescopic cylinder 22 is connected to the oil pipeline 15, the bottom end of the oil pipeline 15 is connected to the hydraulic oil power device 14, the outer side of the mounting support seat 24 is sleeved with a positioning bearing 20, the outer side of the positioning bearing 20 is sleeved with a turntable 25, the top of the turntable 25 is fixedly mounted with a friction plate 21, the outer side of the turntable 25 is sleeved with a driven gear ring 18, the outer side of the driven gear ring 18 is engaged with a driving gear 17, the top of the driving gear 17 is connected to the servo motor 16, the bottom of the turntable 25 is slidably mounted with a sliding support seat 19, the two sides of the detection box 5 are fixedly mounted with an air filter box 6, the internal movability of the air filter box 6 is plugged with a dust filter plate 9, the end of the air filter box 6 away from the detection box 5 is connected with a wind tube 7, and the internal movability of the wind tube 7 is equipped with a fan 8.

[0020] The working principle of the above technical solution is: when in use, the user opens the box door 3 and installs the drum friction plate to be tested on the outside of the drum friction plate mounting frame 23, and then closes the box door 3 to start the fan 8. The fan 8 will draw the air along the wind tube 7 and the air filter box 6 into the interior of the detection box 5 for removal, reducing the influence of smoke and dust accumulation on the acquisition image, and then start the hydraulic oil power device 14 to cause the two-way hydraulic telescopic cylinder 22 to extend and fit the drum friction plate mounting frame 23 and the drum friction plate to the inner side of the friction disc 21. At the same time, the servo motor 16 starts to rotate and drives the driving gear 17 to rotate, and drives the meshing driven gear ring 18 to rotate through the driving gear 17, and drives the turntable 25 to rotate through the driven gear ring 18, thereby causing the friction disc 21 to rotate. The friction disc 21 rotates and extends through the two-way hydraulic telescopic cylinder 22, causing the drum friction plate mounting frame 23 and the drum friction plate are in contact with the inner side of the friction disc 21, and friction force is generated, which is convenient for simulating the braking process. Then, the electric telescopic rod 10 is moved by operating the electric guide rail 4, and the height of the equipment mounting frame 11 is adjusted by the electric telescopic rod 10. Then the lighting lamp 12 illuminates the area around the mounting support seat 24, and the positions of the lighting lamp 12 and the high-speed camera 13 are changed by the electric guide rail 4 and the electric telescopic rod 10. Then the operator collects friction images through the high-speed camera 13 and collects images from multiple angles. In addition, the two-way hydraulic telescopic cylinder 22 can be used to control the drum friction plate mounting frame 23 to contact the friction disc 21, thereby simulating the braking and long braking conditions, and collecting images through the high-speed camera 13, which is convenient for subsequent analysis by other equipment image analysis systems, convenient for multi-angle data collection, and an increased image collection process, which is convenient for collecting data to assist in analyzing structural forces.

[0021] In another embodiment, Figure 1-Figure 3 As shown, the hydraulic oil power device 14 is fixedly installed inside the elastic buffer seat 2, and the oil pipeline 15 is fixedly passed through the base plate 1 and the detection box 5 and extends to the top of the mounting support seat 24.

[0022] The hydraulic oil power device 14 outputs hydraulic oil, which is input into the bidirectional hydraulic telescopic cylinder 22 through the oil pipeline 15. The bidirectional hydraulic telescopic cylinder 22 is extended, which is convenient for controlling the extension of the bidirectional hydraulic telescopic cylinder 22 through the hydraulic system to facilitate auxiliary operations.

[0023] In another embodiment, Figure 3 and Figure 4 As shown, the servo motor 16 is fixedly mounted on the inner wall of the detection box 5 via a bracket.

[0024] After being fixed, the servo motor 16 can easily drive the driving gear 17 to rotate, thereby driving the driven gear ring 18 to rotate through the driving gear 17, thereby facilitating transmission.

[0025] In another embodiment, Figure 3 and Figure 4 As shown, the bottom of the sliding support seat 19 is fixedly installed at the bottom of the inner cavity of the detection box 5, and the top of the sliding support seat 19 is in sliding contact with the bottom of the turntable 25.

[0026] The sliding support seat 19 provides sliding support for the bottom of the turntable 25, which is convenient for stabilizing the structural support of the turntable 25. The top of the sliding support seat 19 is provided with a roller, and is in rolling contact with the bottom of the turntable 25, reducing the friction when the friction plate slides on the plane, improving the smoothness and accuracy of the movement, and using ball or roller plane support to assist in more accurately measuring the sliding performance and stress distribution of the friction plate.

[0027] In another embodiment, Figure 1-Figure 3 As shown, the dust filter plate 9 is movable through the air filter box 6 and extends to the top of the air filter box 6. A sealing strip is provided at the connection between the dust filter plate 9 and the air filter box 6. The opposite side of the air filter box 6 is connected to the interior of the detection box 5, and the wind direction of the fan 8 is the same.

[0028] Through the provided wind tube 7 and air filter box 6, when the fan 8 is started, the airflow is pushed in one direction, and the airflow enters the interior of the air filter box 6 through the wind tube 7, and enters the interior of the detection box 5 after filtering the dust through the dust filter plate 9, pushing the airflow inside the detection box 5 out, reducing the smoke and dust generated by braking during the detection operation, avoiding affecting the image collection of the high-speed camera 13, reducing the accuracy of image collection caused by dust and smoke, and facilitating auxiliary operations.

[0029] In another embodiment, Figure 3 and Figure 4 As shown, the positioning bearing 20 , the mounting support seat 24 and the turntable 25 are concentric circles, and the bidirectional hydraulic telescopic cylinder 22 is located in the middle of the friction disk 21 .

[0030] This structural setting facilitates maintaining structural stability during braking, reduces structural deviation, maintains stress stability, and promotes the structure to remain relatively stable, which facilitates auxiliary braking operation.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drum friction plate structure stress detection device, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is fixedly mounted with an elastic buffer seat (2), the top of the base plate (1) is fixedly mounted with a detection box (5), the front of the detection box (5) is movably mounted with a box door (3), the top of the inner cavity of the detection box (5) is fixedly mounted with an electric guide rail (4), the sliding portion of the electric guide rail (4) is fixedly mounted with an electric telescopic rod (10), the output end of the electric telescopic rod (10) is fixedly mounted with an equipment mounting frame (11), the bottom of the equipment mounting frame (11) is fixedly mounted with two lighting lamps (12), the bottom of the equipment mounting frame (11) is fixedly mounted with a high-speed camera (13), the bottom of the inner cavity of the detection box (5) is fixedly mounted with a mounting support seat (24), the top of the mounting support seat (24) is fixedly mounted with a bidirectional hydraulic telescopic cylinder (22), the output end of the bidirectional hydraulic telescopic cylinder (22) is fixedly mounted with a drum friction plate mounting frame (23), the bidirectional hydraulic telescopic cylinder (22) The input end is connected to an oil pipeline (15), the bottom end of the oil pipeline (15) is connected to a hydraulic oil power device (14), the outer side of the mounting support seat (24) is sleeved with a positioning bearing (20), the outer side of the positioning bearing (20) is sleeved with a turntable (25), the top of the turntable (25) is fixedly mounted with a friction disk (21), the outer side of the turntable (25) is sleeved with a driven gear ring (18), the outer side of the driven gear ring (18) is meshed with the main gear ring (18). The driving gear (17) is connected to the top of the driving gear (17) through transmission with a servo motor (16). The bottom of the turntable (25) is slidably mounted with a sliding support seat (19). Air filter boxes (6) are fixedly mounted on both sides of the detection box (5). A dust filter plate (9) is movably inserted into the interior of the air filter box (6). One end of the air filter box (6) away from the detection box (5) is connected to a wind tube (7). A fan (8) is movably mounted inside the wind tube (7).

2. The drum friction plate structure stress detection device according to claim 1, characterized in that: The hydraulic oil power device (14) is fixedly mounted inside the elastic buffer seat (2), and the oil delivery pipeline (15) is fixedly passed through the base plate (1) and the detection box (5) and extends to the top of the mounting support seat (24).

3. The drum friction plate structure stress detection device according to claim 1, characterized in that: The servo motor (16) is fixedly mounted on the inner wall of the detection box (5) via a bracket.

4. The drum friction plate structure stress detection device according to claim 1, characterized in that: The bottom of the sliding support seat (19) is fixedly mounted on the bottom of the inner cavity of the detection box (5), and the top of the sliding support seat (19) is in sliding contact with the bottom of the turntable (25).

5. The drum friction plate structure stress detection device according to claim 1, characterized in that: The dust filter plate (9) movably passes through the air filter box (6) and extends to the top of the air filter box (6). A sealing strip is provided at the connection between the dust filter plate (9) and the air filter box (6). The opposite side of the air filter box (6) is connected to the interior of the detection box (5), and the wind direction of the fan (8) is the same.

6. The drum friction plate structure stress detection device according to claim 1, characterized in that: The positioning bearing (20), the mounting support seat (24) and the rotating disk (25) are concentric circles, and the bidirectional hydraulic telescopic cylinder (22) is located in the middle of the friction disk (21).

Images