Test device for loading meshing imprint of bevel gear of low door bridge assembly

Abstract

The utility model relates to the field of test devices, in particular to a test device for loading meshing marks of bevel gears of a low door bridge assembly, which comprises a U-shaped table. A clamping assembly is arranged at the upper end of the U-shaped table, and an adjusting assembly is installed on the U-shaped table. The door bridge assembly is placed on the clamping assembly, the adjusting assembly is started to limit the left end and the right end of the door bridge assembly, the clamping assembly is started to limit the front end and the rear end of the door bridge assembly, so that a gear on the door bridge assembly is meshed with a bevel gear, and the input end of the door bridge assembly is connected with an output shaft of a speed reducer through a coupler. A third motor is started to enable a speed reducer to rotate, the speed reducer drives the input end of an assembly to rotate, the left output end and the right output end of the assembly can be meshed with bevel gears, an adjusting assembly is started to monitor the gear meshing face in real time, and a second motor is started to adjust the position of a rotating disc; the U-shaped block can irradiate the meshing face of the gear and the bevel gear at the output end of the assembly from top to bottom, and the gear can be monitored in real time.

Description

Technical Field

[0001] The utility model belongs to the field of test devices, and in particular relates to a test device for loading meshing marks of bevel gears of low gate bridge assemblies. Background Art

[0002] In the automobile transmission system, the low-speed axle assembly is one of the most important components, especially in commercial vehicles. As the core component of the low-speed axle assembly, the bevel gear is responsible for transmitting power and realizing the differential function. Its good meshing performance directly affects the vehicle's handling and fuel economy. During the assembly and use of bevel gears, differences in materials and manufacturing processes often lead to unsatisfactory meshing marks, such as offset of the mark position and uneven size. In order to ensure the assembly quality of the bevel gears, it is necessary to evaluate and adjust the meshing marks of the bevel gears through loading tests.

[0003] The meshing performance test of bevel gears is mainly carried out by simulating the load conditions in the actual working environment, so as to obtain information such as gear surface wear, contact fatigue, meshing marks, etc. These parameters are crucial to the design and optimization of bevel gears. Traditional bevel gear meshing performance tests are generally completed through operating tests under actual working conditions. However, due to the complexity and high cost of the test environment, it is often difficult to quickly and accurately obtain the required parameters. The test device for loading the meshing marks of the bevel gears of the low-gate bridge assembly in the prior art is difficult to observe the dynamic changes of the bevel gears in real time in the simulation test of a certain resistance, and it is difficult to achieve rapid clamping and fixation of the low-gate bridge, which needs further improvement.

[0004] Therefore, a test device for loading the meshing imprint of the bevel gear of the low portal bridge assembly is proposed. The device can observe the dynamic changes of the bevel gear in real time in a simulation test with a certain resistance, and can realize the rapid clamping and fixing of the low portal bridge. Utility Model Content

[0005] In order to overcome the problem that it is difficult to observe the dynamic changes of bevel gears in real time and to quickly clamp and fix the low gate bridge in a simulation test with a certain resistance, a test device for loading the meshing mark of bevel gears of low gate bridge assembly is proposed.

[0006] The technical scheme of the utility model is: a test device for loading the meshing imprint of the bevel gear of the low gate bridge assembly, comprising a U-shaped platform; a clamping assembly is arranged on the upper end of the U-shaped platform, an adjusting assembly is installed on the U-shaped platform, two resistance mechanisms are arranged at the rear of the U-shaped platform, two fixed seats are fixedly connected to the right part of the upper end of the U-shaped platform, a rotating shaft is rotatably installed on the inner wall of the fixed seat, a bevel gear is fixedly connected to the front end of the rotating shaft, the resistance mechanism comprises a fixed plate, a fixed frame, a resistance shaft, a blocking piece and an arc-shaped piece, two fixed plates are arranged at the rear end of the U-shaped platform, a fixed frame is fixedly connected to the rear end of the fixed plate, a blocking piece is rotatably installed on the inner wall of the fixed frame, four evenly distributed arc-shaped pieces are fixedly connected to the rear end of the fixed frame, the arc-shaped piece is in an arc shape, four evenly distributed resistance shafts are fixedly connected to the side wall of the blocking piece, the resistance shaft is in an arc shape, a side of the resistance shaft away from the blocking piece is fitted with a side of the arc-shaped piece close to the blocking piece, and the rear end of the rotating shaft is fixedly connected to the front end of the blocking piece;

[0007] The front end of the U-shaped platform is fixedly connected to a carrier and two top distance measuring components symmetrical to the carrier, the upper end of the carrier is fixedly connected to a third motor and a reducer, the output shaft of the third motor is fixedly connected to the input shaft of the reducer, and the top distance measuring component includes a second bracket, a second motor, a turntable, a U-shaped block and a second infrared distance measuring sensor; the front end of the U-shaped platform is fixedly connected to two second brackets symmetrical to the carrier, the upper end of the second bracket is fixedly connected to the second motor, the lower end of the output shaft of the second motor passes through the second bracket and is fixedly connected to the turntable, the side wall of the turntable is fixedly connected to three evenly distributed U-shaped blocks, and the inner wall of the U-shaped block is fixedly connected to the second infrared distance measuring sensor.

[0008] Preferably, the gate bridge assembly is placed on the clamping assembly, the adjusting assembly is turned on to limit the left and right ends of the assembly, and the clamping assembly is turned on to limit the front and rear ends of the assembly, so that the gears on the assembly are meshed with the bevel gears, and the input end of the assembly and the output shaft of the reducer are connected by a coupling, and the third motor is turned on to rotate the reducer, and the reducer drives the input end of the assembly to rotate, and the two output ends on the left and right of the assembly will mesh with the bevel gears. The adjusting assembly can be turned on to monitor the gear meshing surface in real time, and the position of the second motor adjustment dial can be turned on so that the U-shaped block can illuminate the meshing surface of the gear at the output end of the assembly and the bevel gear from top to bottom, so that the gears can be monitored in real time, which solves the problem that it is difficult to observe the dynamic changes of the bevel gears in real time and to achieve rapid clamping and fixation of the low gate bridge in a simulation test with a certain resistance.

[0009] Preferably, the blocking plate and the resistance shaft are both made of stainless steel, the arc-shaped plate is an aluminum plate structure, and both ends of the resistance shaft and the arc-shaped plate are provided with circular chamfers.

[0010] Preferably, the clamping assembly includes a bearing plate, a cylinder and a clamping plate; two bearing plates are fixedly connected to the inner walls at the front and rear ends of the U-shaped table, and two cylinders are fixedly connected to the upper left and right parts of the U-shaped table. The output shafts of the cylinders on different sides are arranged facing each other, and the clamping plate is fixedly connected to the output shaft of the cylinder.

[0011] Preferably, the adjustment component includes a first bracket, a guide column, a moving block, a threaded sleeve, a fixed platform, a first motor, a connecting column, a double-thread screw, a first infrared ranging sensor and a fixed ring; a fixed platform is placed on the right side of the U-shaped platform, the upper end of the fixed platform is fixedly connected to the first motor, the left end of the first motor is fixedly connected to the connecting column, the left end of the connecting column is fixedly connected to the double-thread screw, the threads of the outer wall of the double-thread screw located on both sides of the center are opposite to each other, two threaded sleeves respectively matched with the two kinds of threads are movably installed on the outer wall of the double-thread screw, the side wall of the threaded sleeve is fixedly connected to the moving block, and the upper end of the moving block is fixedly connected to the fixing ring and the first infrared ranging sensor.

[0012] Preferably, two first brackets are fixedly connected to both left and right ends of the U-shaped platform, a guide column is fixedly connected between the two first brackets on different sides, and the moving block is slidably arranged on the side walls of the two guide columns.

[0013] Preferably, the central axis of the fixing ring and the central axis of the detection end of the first infrared ranging sensor are collinear.

[0014] Preferably, the second infrared ranging sensor is located directly above the bevel gear.

[0015] The beneficial effects of the utility model are as follows: by placing the portal bridge assembly on the clamping assembly, opening the adjusting assembly to limit the left and right ends of the assembly, and opening the clamping assembly to limit the front and rear ends of the assembly, the gears on the assembly are meshed with the bevel gears, the input end of the assembly is connected to the output shaft of the reducer by a coupling, the third motor is turned on to rotate the reducer, and the reducer drives the input end of the assembly to rotate, and the two output ends on the left and right of the assembly will mesh with the bevel gears, the adjusting assembly can be turned on to monitor the gear meshing surface in real time, the position of the second motor adjusting dial is turned on, so that the U-shaped block can illuminate the meshing surface of the gear at the output end of the assembly and the bevel gear from top to bottom, so that the gears can be monitored in real time, which solves the problem that it is difficult to observe the dynamic changes of the bevel gears in real time and to achieve rapid clamping and fixation of the low portal bridge in a simulation test with a certain resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a three-dimensional schematic diagram of a test device for loading meshing marks of bevel gears of a low gate bridge assembly according to the utility model;

[0017] Figure 2What is shown is a first three-dimensional structural schematic diagram of an adjustment assembly of a test device for loading meshing imprint of bevel gears of a low gate bridge assembly according to the utility model;

[0018] Figure 3 The second stereoscopic structural schematic diagram of the adjustment assembly of the test device for loading the meshing imprint of the bevel gear of the low gate bridge assembly of the utility model is shown;

[0019] Figure 4 What is shown is a three-dimensional structural schematic diagram of a resistance mechanism of a test device for loading the meshing imprint of bevel gears of a low gate bridge assembly according to the utility model;

[0020] Figure 5 The three-dimensional structure schematic diagram of the top distance measuring component of a test device for loading the meshing imprint of bevel gears of a low gate bridge assembly according to the utility model is shown;

[0021] Figure 6 The present invention shows a plan view of a fixing frame of a test device for loading meshing marks of bevel gears of a low gate bridge assembly;

[0022] Figure 7 Shown is a plan view of a blocking plate of a test device for loading the meshing mark of a bevel gear of a low gate bridge assembly according to the utility model.

[0023] The markings in the accompanying drawings are: 1. U-shaped table; 2. Clamping assembly; 21. Carrying plate; 22. Cylinder; 23. Clamping plate; 3. Adjusting assembly; 31. First bracket; 32. Guide column; 33. Moving block; 34. Threaded sleeve; 35. Fixed table; 36. First motor; 37. Connecting column; 38. Double-thread screw; 39. First infrared ranging sensor; 310. Fixed ring; 4. Resistance mechanism; 41. Fixed plate; 42. Fixed frame; 43. Resistance shaft; 44. Blocking plate; 45. Arc plate; 5. Fixed seat; 6. Rotating shaft; 7. Bevel gear; 8. Top ranging assembly; 81. Second bracket; 82. Second motor; 83. Turntable; 84. U-shaped block; 85. Second infrared ranging sensor; 9. Carrying body; 10. Third motor; 11. Reducer. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-Figure 7The utility model provides an embodiment: a test device for loading the meshing mark of bevel gears of low gate bridge assemblies, comprising a U-shaped platform 1; a clamping assembly 2 is arranged at the upper end of the U-shaped platform 1, an adjusting assembly 3 is installed on the U-shaped platform 1, two resistance mechanisms 4 are arranged at the rear of the U-shaped platform 1, two fixing seats 5 are fixedly connected to the right part of the upper end of the U-shaped platform 1, a rotating shaft 6 is rotatably installed on the inner wall of the fixing seat 5, a bevel gear 7 is fixedly connected to the front end of the rotating shaft 6, and the resistance mechanism 4 comprises a fixing plate 41, a fixing frame 42, a resistance shaft 43, a blocking sheet 44 and an arc The rear of the U-shaped platform 1 is provided with two fixed plates 41, the rear end of the fixed plate 41 is fixedly connected with a fixed frame 42, the inner wall of the fixed frame 42 is rotatably mounted with a blocking piece 44, the rear end of the fixed frame 42 is fixedly connected with four evenly distributed arc-shaped pieces 45, the arc-shaped pieces 45 are arc-shaped, the side wall of the blocking piece 44 is fixedly connected with four evenly distributed resistance shafts 43, the resistance shafts 43 are arc-shaped, the side of the resistance shaft 43 away from the blocking piece 44 is in contact with the side of the arc-shaped piece 45 close to the blocking piece 44, and the rear end of the rotating shaft 6 is fixedly connected to the front end of the blocking piece 44;

[0026] The front end of the U-shaped platform 1 is fixedly connected to a carrier 9 and two top distance measuring components 8 symmetrical to the carrier 9, the upper end of the carrier 9 is fixedly connected to a third motor 10 and a reducer 11, the output shaft of the third motor 10 is fixedly connected to the input shaft of the reducer 11, and the top distance measuring component 8 includes a second bracket 81, a second motor 82, a turntable 83, a U-shaped block 84 and a second infrared distance measuring sensor 85; the front end of the U-shaped platform 1 is fixedly connected to two second brackets 81 symmetrical to the carrier 9, the upper end of the second bracket 81 is fixedly connected to the second motor 82, the lower end of the output shaft of the second motor 82 passes through the second bracket 81 and is fixedly connected to the turntable 83, the side wall of the turntable 83 is fixedly connected to three evenly distributed U-shaped blocks 84, and the inner wall of the U-shaped block 84 is fixedly connected to the second infrared distance measuring sensor 85.

[0027] Place the gate bridge assembly on the clamping component 2, turn on the adjustment component 3 to limit the left and right ends of the assembly, turn on the clamping component 2 to limit the front and rear ends of the assembly, so that the gears on the assembly are meshed with the bevel gear 7, use a coupling to connect the input end of the assembly and the output shaft of the reducer 11, turn on the third motor 10 to rotate the reducer 11, and the reducer 11 drives the input end of the assembly to rotate, and the two output ends on the left and right of the assembly will mesh with the bevel gear 7. Turning on the adjustment component 3 can monitor the gear meshing surface in real time, turning on the second motor 82 to adjust the position of the turntable 83, so that the U-shaped block 84 can illuminate the meshing surface of the gear at the output end of the assembly and the bevel gear 7 from top to bottom, so that the gear can be monitored in real time.

[0028] See also Figure 1 , Figure 6 and Figure 7In this embodiment, the blocking plate 44 and the resistance shaft 43 are both made of stainless steel, and the arc-shaped plate 45 is an aluminum plate structure. Both ends of the resistance shaft 43 and the arc-shaped plate 45 are provided with circular chamfers. When the blocking plate 44 rotates, the resistance shaft 43 will rub against the arc-shaped plate 45, which can provide a certain resistance to the blocking plate 44, thereby applying resistance to the bevel gear 7.

[0029] See also Figure 1 and Figure 5 In this embodiment, the clamping assembly 2 includes a bearing plate 21, a cylinder 22 and a clamping plate 23; two bearing plates 21 are fixedly connected to the inner walls at the front and rear ends of the U-shaped platform 1, and two cylinders 22 are fixedly connected to the upper left and right parts of the U-shaped platform 1. The output shafts of the cylinders 22 on different sides are arranged facing each other, and the clamping plates 23 are fixedly connected to the output shafts of the cylinders 22. The gate bridge assembly is placed on the upper ends of the two bearing plates 21, and then the cylinders 22 are turned on to make the clamping plates 23 close to each other, so that the gate bridge assembly can be squeezed and fixed.

[0030] See also Figure 1-Figure 3 In this embodiment, the adjustment assembly 3 includes a first bracket 31, a guide column 32, a moving block 33, a threaded sleeve 34, a fixed platform 35, a first motor 36, a connecting column 37, a double-thread screw 38, a first infrared ranging sensor 39 and a fixing ring 310; the fixed platform 35 is placed on the right side of the U-shaped platform 1, the upper end of the fixed platform 35 is fixedly connected to the first motor 36, the left end of the first motor 36 is fixedly connected to the connecting column 37, the left end of the connecting column 37 is fixedly connected to the double-thread screw 38, and the outer wall of the double-thread screw 38 is located at the center The threads on both sides are opposite to each other. Two threaded sleeves 34 respectively adapted to the two threaded threads are movably installed on the outer wall of the double-thread screw 38. A moving block 33 is fixedly connected to the side wall of the threaded sleeve 34. A fixing ring 310 and a first infrared ranging sensor 39 are fixedly connected to the upper end of the moving block 33. When the first motor 36 is turned on to rotate the double-thread screw 38, the two threaded sleeves 34 will approach each other, so that the two fixing rings 310 are brought close to each other. The two ends of the assembly can be clamped and fixed by the ends of the two fixing rings 310 that are close to each other.

[0031] See also Figure 1 and Figure 2 In this embodiment, two first brackets 31 are fixedly connected to the left and right ends of the U-shaped platform 1, and a guide column 32 is fixedly connected between the two first brackets 31 on different sides. The moving block 33 is slidably arranged on the side walls of the two guide columns 32, which is conducive to the stable movement of the moving block 33.

[0032] See also Figure 1 and Figure 3In this embodiment, the central axis of the fixing ring 310 and the central axis of the detection end of the first infrared ranging sensor 39 are collinear, and the detection end of the first infrared ranging sensor 39 is just irradiated on the rotating gear of the assembly, and the gear is meshed with the bevel gear 7, which is convenient for real-time detection of the gear.

[0033] See also Figure 1 and Figure 5 In this embodiment, the second infrared ranging sensor 85 is located directly above the bevel gear 7, which is convenient for detecting the meshing surface between the bevel gear 7 and the assembly gear.

[0034] Working principle: First, place the door bridge assembly on the upper ends of the two bearing plates 21, then turn on the cylinder 22 to make the clamping plates 23 approach each other, so that the door bridge assembly can be squeezed and fixed, turn on the first motor 36 to make the double-thread screw 38 rotate, and the two threaded sleeves 34 will approach each other, so that the two fixing rings 310 are brought close to each other, and the two ends of the assembly can be clamped and fixed by the ends of the two fixing rings 310 that are close to each other;

[0035] The gear on the assembly is meshed with the bevel gear 7, the input end of the assembly is connected to the output shaft of the reducer 11 by a coupling, the third motor 10 is turned on to rotate the reducer 11, and the reducer 11 drives the input end of the assembly to rotate, and the two output ends on the left and right of the assembly will mesh with the bevel gear 7, and the detection end of the first infrared ranging sensor 39 is just irradiated on the rotating gear of the assembly, and the gear is meshed with the bevel gear 7, so that the gear can be detected in real time;

[0036] Turn on the second motor 82 to adjust the position of the turntable 83 so that the U-shaped block 84 can illuminate the meshing surface of the gear at the output end of the assembly and the bevel gear 7 from top to bottom, so that the gear can be monitored in real time;

[0037] When the blocking piece 44 rotates, the resistance shaft 43 will rub against the arc piece 45, which can provide a certain resistance to the blocking piece 44, thereby applying resistance to the bevel gear 7, so that the situation of the assembly gear mark under a certain resistance can be detected.

[0038] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A test device for loading meshing marks of bevel gears of low-gate bridge assemblies, comprising a U-shaped table (1); characterized in that: The upper end of the U-shaped platform (1) is provided with a clamping assembly (2), an adjusting assembly (3) is installed on the U-shaped platform (1), two resistance mechanisms (4) are arranged at the rear of the U-shaped platform (1), two fixed seats (5) are fixedly connected to the right part of the upper end of the U-shaped platform (1), a rotating shaft (6) is rotatably installed on the inner wall of the fixed seat (5), and a bevel gear (7) is fixedly connected to the front end of the rotating shaft (6), and the resistance mechanism (4) includes a fixed plate (41), a fixed frame (42), a resistance shaft (43), a blocking sheet (44) and an arc sheet (45), and two fixed plates (41) are arranged at the rear of the U-shaped platform (1). 41), a fixing frame (42) is fixedly connected to the rear end of the fixing plate (41), a blocking piece (44) is rotatably mounted on the inner wall of the fixing frame (42), four evenly distributed arcuate pieces (45) are fixedly connected to the rear end of the fixing frame (42), the arcuate pieces (45) are arc-shaped, four evenly distributed resistance shafts (43) are fixedly connected to the side wall of the blocking piece (44), the resistance shaft (43) is arc-shaped, a side of the resistance shaft (43) away from the blocking piece (44) and a side of the arcuate piece (45) close to the blocking piece (44) are in contact, and the rear end of the rotating shaft (6) is fixedly connected to the front end of the blocking piece (44); The front end of the U-shaped platform (1) is fixedly connected to a carrier (9) and two top distance measuring components (8) symmetrical to the carrier (9); the upper end of the carrier (9) is fixedly connected to a third motor (10) and a reducer (11); the output shaft of the third motor (10) is fixedly connected to the input shaft of the reducer (11); the top distance measuring component (8) comprises a second bracket (81), a second motor (82), a turntable (83), a U-shaped block (84) and a second infrared distance measuring sensor (85); the front end of the U-shaped platform (1) is fixedly connected to two second brackets (81) symmetrical to the carrier (9); the upper end of the second bracket (81) is fixedly connected to the second motor (82); the lower end of the output shaft of the second motor (82) passes through the second bracket (81) and is fixedly connected to the turntable (83); the side wall of the turntable (83) is fixedly connected to three evenly distributed U-shaped blocks (84); the inner wall of the U-shaped block (84) is fixedly connected to the second infrared distance measuring sensor (85).

2. A test device for loading meshing marks of bevel gears of low gate bridge assemblies according to claim 1, characterized in that: The blocking sheet (44) and the resistance shaft (43) are both made of stainless steel, the arc-shaped sheet (45) is an aluminum sheet structure, and both ends of the resistance shaft (43) and the arc-shaped sheet (45) are provided with circular chamfers.

3. A test device for loading meshing marks of bevel gears of low gate bridge assemblies according to claim 1, characterized in that: The clamping assembly (2) comprises a bearing plate (21), a cylinder (22) and a clamping plate (23); the two bearing plates (21) are fixedly connected to the inner walls at the front and rear ends of the U-shaped platform (1); the left and right upper ends of the U-shaped platform (1) are fixedly connected to two cylinders (22); the output shafts of the cylinders (22) on different sides are arranged to face each other, and the clamping plate (23) is fixedly connected to the output shaft of the cylinder (22).

4. A test device for loading meshing marks of bevel gears of low gate bridge assemblies according to claim 1, characterized in that: The adjustment assembly (3) comprises a first bracket (31), a guide column (32), a moving block (33), a threaded sleeve (34), a fixed platform (35), a first motor (36), a connecting column (37), a double-thread screw (38), a first infrared distance sensor (39) and a fixing ring (310); the fixing platform (35) is placed on the right side of the U-shaped platform (1); the upper end of the fixing platform (35) is fixedly connected to the first motor (36); the left end of the first motor (36) is fixedly connected to the connecting column (37); the left end of the connecting column (37) is fixedly connected to the double-thread screw (38); the threads of the outer wall of the double-thread screw (38) on both sides of the center are opposite to each other; two threaded sleeves (34) respectively matched with the two threaded threads are movably mounted on the outer wall of the double-thread screw (38); the side wall of the threaded sleeve (34) is fixedly connected to the moving block (33); the upper end of the moving block (33) is fixedly connected to the fixing ring (310) and the first infrared distance sensor (39).

5. A test device for loading meshing marks of bevel gears of low gate bridge assemblies according to claim 4, characterized in that: Two first brackets (31) are fixedly connected to both left and right ends of the U-shaped platform (1), a guide column (32) is fixedly connected between the two first brackets (31) on different sides, and a moving block (33) is slidably arranged on the side walls of the two guide columns (32).

6. A test device for loading meshing marks of bevel gears of low gate bridge assemblies according to claim 4, characterized in that: The central axis of the fixing ring (310) and the central axis of the detection end of the first infrared distance measuring sensor (39) are collinear, the two fixing rings (310) are located between the two first infrared distance measuring sensors (39), and the detection end of the first infrared distance measuring sensor (39) faces the center of the fixing ring (310).

7. The test device for loading the meshing mark of bevel gears of low gate bridge assemblies according to claim 1, characterized in that: The second infrared distance measuring sensor (85) is located directly above the bevel gear (7).

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