Spiral bevel gear / hypoid gear installation error performance test bench

Abstract

The invention provides a spiral bevel gear / hypoid gear installation error performance test bench. The spiral bevel gear / hypoid gear installation error performance test bench comprises a movable lifting platform and an angle adjustment rotating platform. A permanent magnet synchronous motor is installed on the movable lifting platform and fixedly connected with a transmission shaft through a coupler, and the end, away from the permanent magnet synchronous motor, of the transmission shaft is used for being connected with a driven testing gear. A coarse adjustment mechanism and a fine adjustment mechanism which are used for adjusting the driven test gear to move in the length direction, the width direction and the height direction of the bottom plate are further installed on the movable lifting platform. A loader is mounted on the angle adjustment rotating platform, the loader is used for driving the driving test gear to rotate, and a coarse adjustment mechanism and a fine adjustment mechanism which are used for adjusting the shaft angle of the driving test gear and the driven test gear are further mounted on the angle adjustment rotating platform; according to the test bench, the measurement precision is greatly improved, the measurement is convenient and fast, the operation is simple, and the operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of gear testing technology, specifically a test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears. Background Technology

[0002] In actual gear assembly, installation errors are unavoidable. In particular, the meshing performance of spiral bevel gears / hypoid gears is extremely sensitive to installation errors. Installation errors will cause the meshing point of the gears to deviate from the designed position, resulting in low-quality meshing and severely affecting meshing performance and service life. Therefore, accurately evaluating the meshing performance of gear pairs under installation error conditions is crucial.

[0003] Currently, most existing gear testing platforms are single-function test benches with narrow adjustment ranges for the position and angle of the gear under test. They can only achieve coarse adjustments of position and shaft angle, lacking precision, and are limited in the types of gears that can be tested. Furthermore, the lack of accurate measuring devices makes it impossible to accurately determine the specific angle of rotation and position of movement of the gear under test, leading to inaccurate test results. Therefore, we propose an improved spiral bevel gear / quasi-hypoid gear installation error performance testing bench to address these issues. Summary of the Invention

[0004] The purpose of this invention is to improve and innovate upon the shortcomings and problems existing in the background technology, and to provide a test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears.

[0005] A test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears includes: A base plate, on which a movable lifting platform and an angle-adjustable rotating platform are provided; A mobile lifting platform is provided, on which a permanent magnet synchronous motor is installed. The permanent magnet synchronous motor is fixedly connected to a drive shaft via a coupling. The end of the drive shaft away from the permanent magnet synchronous motor is used to connect to the driven test gear. The mobile lifting platform is also equipped with a first position coarse adjustment mechanism, a fine adjustment mechanism, a second position coarse adjustment mechanism, a fine adjustment mechanism, and a third position adjustment mechanism for adjusting the movement of the driven test gear along the length, width, and height directions of the base plate, respectively. An angle-adjusting rotary platform is provided, on which a loader is mounted. The loader is fixedly connected to a drive shaft via a coupling. The end of the drive shaft away from the loader is used to connect to an active test gear. The active test gear and the driven test gear mesh and drive each other. The angle-adjusting rotary platform is also equipped with a fourth-position coarse adjustment mechanism and a fine adjustment mechanism for adjusting the angle between the shafts of the active test gear and the driven test gear.

[0006] A further embodiment is that the first position coarse adjustment mechanism includes a lifting slide plate, a first adjustable dial plate is mounted on the side wall of the lifting slide plate and rotatably connected to a first rocker handle, a pointer on the first rocker handle is used to coordinate with the scale on the first adjustable dial plate, second guide rails are mounted on both sides of the lifting slide plate along the length of the base plate, a first rolling screw is mounted in the middle of the lifting slide plate along the length of the base plate, a second slider is slidably connected to the second guide rails, a first screw nut passes through the middle of the first rolling screw and is threadedly connected to it, the first rocker handle drives the first rolling screw to rotate through a bevel gear transmission mechanism, the second slider and the first screw nut are used to support the upper slide plate, and the upper slide plate is used to support the permanent magnet synchronous motor.

[0007] A further embodiment is that the first position fine-tuning mechanism includes a bracket, which is fixedly connected to the middle of one side of the upper slide plate. A first manually adjustable slide is disposed inside the bracket. The lower body of the first manually adjustable slide is fixedly connected to the bracket, and the upper body of the first manually adjustable slide is slidably connected relative to its lower body. A first rack is mounted on the upper body of the first manually adjustable slide. A cylindrical gear shaft is rotatably connected to the bracket via a bearing. Gears are fixedly connected to the upper and lower ends of the cylindrical gear shaft. The gear at the lower end of the cylindrical gear shaft meshes with the first rack, and the gear at the upper end of the cylindrical gear shaft meshes with a second rack. The second rack is used to drive the motor base plate to move along the length of the base plate. A first micrometer is mounted on the lower body of the first manually adjustable slide, and the output end of the first micrometer is used to drive the upper body of the first manually adjustable slide to reciprocate relative to the lower body. First sliders are mounted on both sides of the lower surface of the motor base plate, and the first sliders are slidably connected to first guide rails, which are disposed on both sides of the upper surface of the upper slide plate.

[0008] A further embodiment is that the third position adjustment mechanism includes a lifting slide plate base, on which a second rocker arm is rotatably connected. The second rocker arm drives a second rolling screw to rotate via a bevel gear transmission mechanism. The upper end of the second rolling screw passes through a second screw nut and is threadedly connected to it. A second sleeve is bolted to the upper surface of the second screw nut. The upper end of the second sleeve is bolted to the lower surface of the lifting slide plate. A vertical caliper is installed around the lifting slide plate base. A first sleeve is installed on the lower surface of the lifting slide plate. The first sleeve and the vertical caliper are fitted with a clearance, and the pointer on the first sleeve matches the scale on the vertical caliper.

[0009] A further embodiment involves symmetrically mounting pneumatic lifting support mechanisms on both sides of the upper surface of the lifting slide plate. Each pneumatic lifting support mechanism includes a support base plate and cylinders. The support base plate is fixedly connected to the lifting slide plate, and four support rods are rotatably connected to it. Two support rods on the same side of the support base plate intersect each other, and two parallel support rods are connected by connecting rods. The cylinders are rotatably connected to the connecting rods at both ends, and the support rods slide against the support top plate. The upper surface of the support top plate is in contact with the lower surface of the lifting slide plate.

[0010] A further embodiment is that the second position coarse adjustment mechanism includes a lower slide plate base. First lead screw baffles are provided on both sides of the upper surface of the lower slide plate base. A fourth guide rail is provided between the two first lead screw baffles. A fourth slider is slidably connected to the fourth guide rail. A third rolling lead screw is connected to the middle of the first lead screw baffles. A third rocker arm is fixedly connected to one end of the third rolling lead screw. The pointer on the third rocker arm cooperates with the scale on a second adjustable dial. The second adjustable dial is mounted on the first lead screw baffle. A third lead screw nut passes through the middle of the third rolling lead screw and is threadedly connected to it. The fourth slider and the third lead screw nut are used to support the lifting slide plate base.

[0011] A further embodiment includes a second manual adjustment slide, the lower body of which is fixedly connected to the lower slide plate. The upper body of the second manual adjustment slide is slidably connected relative to the lower body and fixedly connected to the lifting slide plate base. A second micrometer is mounted on the second manual adjustment slide, and the output end of the second micrometer is used to drive the upper body of the second manual adjustment slide to reciprocate along the width direction of the base plate. Third sliders are mounted on both sides of the lower surface of the lifting slide plate base, and third guide rails pass through the third sliders and are fixed on the lower slide plate.

[0012] A further embodiment is that the fourth position coarse adjustment mechanism includes a sliding base, the upper end of which supports the active test gear, and the lower end face of the sliding base has a blind hole. A reduction motor is installed inside the sliding base, the output end of which is interference-fitted with the bearing seat at the bottom of the sliding base, and the end of the output shaft of the reduction motor is fixedly connected to a cylindrical gear. The roller on the sliding base cooperates with the gear ring guide rail, and the cylindrical gear meshes with the ring gear. An angle pointer is provided on the bearing seat, and the angle pointer cooperates with the scale line of the protective shell of the precision ring gear guide rail. The ring gear and the gear ring guide rail are fixedly connected and fixed to the base plate by bolts.

[0013] A further embodiment is that the fourth position fine-tuning mechanism includes an indexing plate, the upper surface of which is used to drive the loader base plate to rotate, the loader is mounted on the loader base plate, the center line of the indexing plate coincides with the center line of the loader base plate and the cylindrical gear, and the lower surface of the indexing plate is fixedly connected to the sliding base.

[0014] A further option is that the other end of the drive shaft away from the loader is a disc shaft, which is connected to a gear clamp via a blind hole thread. This gear clamp is used to hold the test drive gear.

[0015] Compared with existing technologies, the beneficial effects of this invention are: This invention provides a test bench that achieves position adjustment in three directions (X-axis, Y-axis, and Z-axis) through a crank handle and a manually adjustable slide, and angle adjustment through a geared motor and an indexing plate, significantly improving measurement accuracy. This test bench can be widely used for comprehensive performance testing of installation errors of various gears, thereby expanding its application range. The advantages of this invention are: 1. Wide applicability: This test bench is suitable for comprehensive performance testing of installation errors of various commonly used transmission gears such as hypoid gears, spur gears, and helical gears.

[0016] 2. Precise adjustment: Coarse and fine adjustments can be made in the X, Y, and Z axes, and the adjustment distance can be accurately measured.

[0017] 3. Fine adjustment of axis intersection angle: It can perform coarse and fine adjustment of axis intersection angle and accurately obtain the adjustment angle value.

[0018] 4. Convenient operation: All cranks are located on the same side, simplifying the operation process and improving operating efficiency.

[0019] 5. High measurement accuracy and convenience: This test bench not only improves the accuracy of measurement, but also makes the measurement process more convenient and simple, further improving operational efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is the left view of the present invention; Figure 3 This is an overall schematic diagram of the mobile lifting platform of the present invention; Figure 4 This is a schematic diagram of the overall angle adjustment rotation platform of the present invention; Figure 5 This is an overall schematic diagram of the pneumatic lifting support mechanism of the present invention; Figure 6 This is a schematic diagram of the first manually adjustable slide structure of the present invention.

[0021] Reference numerals: 1. Base plate support; 2. Alarm device; 3. Base plate; 4. Motor base plate; 5. Permanent magnet synchronous motor; 6. Gear; 7. First micrometer; 8. First drive shaft; 9. First sleeve; 10. Second drive shaft; 11. Second lead screw nut; 12. Cylinder; 13. Gearbox cover; 14. Gearbox; 15. Precision ring gear guide rail protective shell; 16. Rotation angle sensor display screen; 17. Driven test bevel gear; 18. Second sleeve; 19. Second bevel gear; 20. First bevel gear; 21. Second rolling lead screw; 22. Second... 22. Micrometer; 23. Gearbox base; 24. Support box; 25. Lower slide plate base; 26. Fourth guide rail; 27. First lead screw baffle; 28. Third lead screw nut; 29. ​​First bevel gearbox; 30. Lifting slide plate base; 31. Lifting slide; 32. Bracket; 33. Connecting plate; 34. Cylindrical gear shaft; 35. First rack; 36. Second rack; 37. Upper slide; 38. First guide rail; 39. Second bevel gearbox; 40. Second lead screw baffle; 41. Second guide rail; 42. Second locking block; 43. Upper slide support. 3. Second slider 44. Vertical caliper 45. First manual adjustment slide 46. Third crank 47. Second adjustable dial 48. Third rolling screw 49. Second crank 50. Sliding support 51. Third guide rail 52. Second manual adjustment slide 53. First crank 54. First adjustable dial 55. Fourth locking block 56. Fourth slider 57. Lower slide plate 58. Third slider 59. First slider 60. Support top plate 61. Screw nut support 62. First rolling screw 6 3. Third bevel gear 64, fourth bevel gear 65, support rod 66, optical shaft 67, fifth bevel gear 68, sixth bevel gear 69, cylindrical gear 70, first lead screw nut 71, geared motor bracket 72, geared motor 73, indexing plate 74, loader base plate 75, loader bracket 76, loader 77, third drive shaft 78, gear clamp 79, active test gear 80, sliding base 81, gear ring guide rail 82, ring gear 83, roller 84, support base plate 85, connecting rod 86. Detailed Implementation

[0022] To make the objectives, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Please see Figures 1-6 This invention provides a test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears, which mainly includes a base plate support 1, an alarm device 2, a base plate 3, a motor base plate 4, a permanent magnet synchronous motor 5, a first transmission shaft 8, a second transmission shaft 10, a rotation angle sensor, a gearbox cover 13, a gearbox 14, a protective shell 15 for a precision ring gear guide rail with graduations, a rotation angle sensor display screen 16, a movable lifting platform, and an angle adjustment rotation platform.

[0026] The base plate support 1 has threaded holes, and the base plate support 1 is connected to the base plate 3 by bolts. Alarm devices 2 are provided on both sides of the base plate 3 and are fixed to the base plate 3 by bolts. The rotation angle sensor display screen 16 is located on the front side of the base plate 3 and is fixed to the base plate 3 by bolts. The rotation angle sensor display screen 16 is electrically connected to the rotation angle sensor.

[0027] A permanent magnet synchronous motor 5 is mounted on the motor base plate 4 and is connected to the motor bracket by bolts. Both ends of the first drive shaft 8 have keyways, each containing a standard flat key. The permanent magnet synchronous motor 5 is fixed to one end of the first drive shaft 8 via a coupling, and a bearing seat is provided on the motor base plate 4 to support the first drive shaft 8. The other end of the first drive shaft 8 is fixed to the second drive shaft 10 via a coupling. A keyway is located at the end of the second drive shaft 10 away from the first drive shaft 8, containing a standard flat key, and a bearing seat is provided on the motor base plate 4 to support the second drive shaft 10. A disc shaft is mounted at the other end of the second drive shaft 10, with 12 through holes. The end of the disc shaft away from the second drive shaft 10 is bolted to the driven test bevel gear 17. The motor bracket and the motor base plate 4 are fixed together by bolts.

[0028] First sliders 60 are installed on both sides of the lower surface of the motor base plate 4. The first sliders 60 are slidably connected to the first guide rails 38. The first guide rails 38 are set on both sides of the upper surface of the upper slide plate 37. The first guide rails 38 are set along the Y-axis direction. The first guide rails 38 pass through the first sliders 60 and are fixedly connected to the sliding support. A first locking block is also slidably connected to the first guide rail 38. A fastening screw is threaded on the first locking block. The fastening screw passes through the first locking block and abuts against the first guide rail 38. There are two first locking blocks, which are distributed on both sides of the first sliders 60. The sliding support is installed at the four corners of the upper surface of the upper slide plate 37.

[0029] The mobile lifting platform is equipped with a bracket 32, which is bolted to the upper slide plate 37. A first manually adjustable slide 46 is installed inside the bracket 32. The lower body of the first manually adjustable slide 46 is bolted to the bracket 32, and the upper body of the first manually adjustable slide 46 is slidably connected to the inner wall of the bracket 32 ​​relative to its lower body. A first rack 35 is mounted on the upper body of the first manually adjustable slide 46. A cylindrical gear shaft 34 is rotatably connected to the bracket 32 ​​via bearings. Gears 6 are fixedly connected to the upper and lower ends of the cylindrical gear shaft 34. The gear 6 at the lower end of the cylindrical gear shaft 34 meshes with the first rack 35, and the gear 6 at the upper end of the cylindrical gear shaft 34 meshes with a second rack 36. The second rack 36 is mounted on a connecting plate 33, which is bolted to the lower end face of the motor base plate 4. The two second racks 36 are bolted to the lower end face of the connecting plate 33. The first manual adjustment slide 46 has a first micrometer 7 mounted on its lower body. The output end of the first micrometer 7 is used to drive the upper body of the first manual adjustment slide 46 to slide back and forth relative to the lower body. For example, the output end of the first micrometer 7 can be connected to a ball bearing, which is located inside the first manual adjustment slide 46.

[0030] The first crank handle 54 is connected to the first adjustable dial 55, and the pointer on the first crank handle 54 is aligned with the 0 mark on the first adjustable dial 55. Before each test, the 0 mark on the first adjustable dial 55 can be aligned with the pointer on the first crank handle 54 to facilitate reading the rotation angle. The first adjustable dial 55 is mounted on the side wall of the lifting slide plate 31. The first crank handle 54 passes through the lifting slide plate 31 and is fixedly connected to the first bevel gear 20. The first bevel gear 20 meshes with the second bevel gear 19, and the second bevel gear 19 is fixedly connected to one end of the first rolling screw 63. The two ends of the first rolling screw 63 are limited by the second screw baffle 40. The second screw baffle 40 is bolted to the lifting slide plate 31. Second guide rails 41 are connected to both sides of the upper surface of the lifting slide plate 31. A second slider 44 is slidably connected to the second guide rails 41, and the two sides of the second slider 44 are locked by second locking blocks 42. The second guide rails 41 are also set along the Y-axis. Four upper slide plate supports 43 are symmetrically installed on both sides of the lower surface of the upper slide plate 37. A screw nut support 62 is installed in the middle of the lower surface of the upper slide plate 37. The second slider 44 is connected to the upper slide plate support 43 and the screw nut support 62 is connected to the first screw nut 71 by bolts. The first rolling screw 63 passes through the first screw nut 71 in the middle and is threaded to it.

[0031] Vertical calipers 45 are installed around the lifting slide plate base 30. A first sleeve 9 is installed on the lower surface of the lifting slide plate 31, and the first sleeve 9 and the vertical calipers 45 are fitted with clearance. Pneumatic lifting support mechanisms are symmetrically installed on both sides of the lifting slide plate base 30. Each pneumatic lifting support mechanism includes a support base plate 85 and a cylinder 12. The support base plate 85 is fixedly connected to the lifting slide plate base 30. Four support rods 66 are rotatably connected to the support base plate 85. Two support rods 66 on the same side of the support base plate 85 intersect each other, and a connecting rod 86 connects two parallel support rods 66. The cylinder 12 is rotatably connected to the connecting rod 86 at both ends. The support rods 66 are slidably fitted with the support top plate 61. The upper surface of the support top plate 61 is in contact with the lower surface of the lifting slide plate 31. The second crank 50 is interference-fitted with the bearing seat on the lifting slide plate base 30. The second crank 50 passes through the first bevel gear box 29 and is fixedly connected to the third bevel gear 64. The third bevel gear 64 meshes with the fourth bevel gear 65 in the first bevel gear box 29. The fourth bevel gear 65 is fixedly connected to one end of the optical shaft 67. The lifting slide plate base 30 is provided with a bearing seat for supporting the optical shaft 67. The other end of the optical shaft 67 is fixedly connected to the fifth bevel gear 68. The fifth bevel gear 68 meshes with the sixth bevel gear 69 in the second bevel gear box 39. The bottom end of the second rolling screw 21 passes through the top wall of the second bevel gear box 39 and is fixedly connected to the sixth bevel gear 69. The upper end of the second rolling screw 21 passes through the second screw nut 11 and is threadedly connected to it. The upper surface of the second screw nut 11 is bolted with a second sleeve 18. The upper end of the second sleeve 18 is bolted to the lower surface of the lifting slide plate 31.

[0032] The lower surface of the lifting slide plate base 30 is equipped with third sliders 59 on both sides. A third guide rail 52 passes through the third sliders 59 and is fixedly connected to a sliding support. Third locking blocks are installed on the third guide rail 52 and distributed on both sides of the third sliders 59. The sliding support is installed at the four corners of the lower slide plate 58. The third guide rail 52 is arranged along the X-axis. The upper body of the second manual adjustment slide 53 is fixedly connected to the lifting slide plate base 30. A boss is provided on the lower slide plate 58, and the lower body of the second manual adjustment slide 53 is fixedly connected to the boss on the lower slide plate 58. The upper body of the second manual adjustment slide 53 is slidably connected relative to the lower body. A second micrometer 22 is installed on the second manual adjustment slide 53, and the output end of the second micrometer 22 is used to drive the upper body of the second manual adjustment slide 53 to reciprocate along the X-axis.

[0033] The lower slide plate 25 has first lead screw baffles 27 on both sides of its upper surface. Symmetrical through holes are formed on the first lead screw baffles 27. A fourth guide rail 26 is fixedly connected to the lower slide plate 25 through these through holes. The fourth guide rail 26 is bolted to the lower slide plate 25. A fourth slider 57 is slidably connected to the fourth guide rail 26 and locked by a fourth locking block 56. The first locking block, second locking block 42, third locking block, and fourth locking block 56 have the same structural principle. A third rolling lead screw 49 is connected to the middle of the first lead screw baffle 27 through a through hole. The pointer on the third crank 47 coincides with the 0 mark on the second adjustable dial 48 and is connected to one end of the third rolling lead screw 49 via a coupling. The second adjustable dial 48 is mounted on the first lead screw baffle 27. Four lower slide plate support bosses are symmetrically arranged on both sides of the lower slide plate base 25. A screw nut support boss is arranged in the middle of the lower slide plate base 25. The fourth slider 57 is connected to the lower slide plate support boss, and the third screw nut 28 is connected to the screw nut support boss by bolts. Bolts are arranged around the lower slide plate 25 to connect it to the support box 24. The lower slide plate support bosses and the screw nut support boss are connected to the lower slide plate 58. Bolts are arranged around the support box 24 to connect it to the base plate 3.

[0034] The base plate 3 has a circular boss with a square groove inside. The gearbox base 23 mates with the groove on the base plate 3 and is connected by bolts. The gearbox base 23 has a square hollow structure, and the lower end of the gearbox 14 is square and mates with the gearbox base 23. The upper surface of the gearbox 14 has a groove, and the lower surface of the gearbox cover 13 has a matching boss, thus matching the gearbox 14.

[0035] A loader 77 is mounted on the angle-adjusting rotating platform and is bolted to a loader bracket 76, which is mounted on a loader base plate 75. One end of the third drive shaft 78 has a keyway with a standard flat key. The loader 77 and the third drive shaft 78 are fixedly connected by a coupling. A bearing seat for supporting the third drive shaft 78 is provided on the loader base plate 75. The other end of the third drive shaft 78 is a disc shaft with six blind holes. A gear clamp 79 is threaded through these blind holes and used to clamp the active test gear 80. The active test bevel gear 80 is inserted into the gear clamp 79 and clamped by rotating the square hole in the gear clamp 79. This also facilitates the replacement of the active test bevel gear 80 for testing different gears. The loader bracket 76 has through holes on both sides and is fixedly connected to the loader base plate 75. The loader base plate 75 is mounted on the indexing plate 74, with the center line of the indexing plate 74 coinciding with the center line of the loader base plate 75. The upper surface of the indexing plate 74 is fixedly connected to the loader base plate 75. The indexing plate 74 is used to drive the loader base plate 75 to rotate. Through holes are opened at the four corners of the indexing plate 74. The rotation center line of the indexing plate 74 coincides with the center line of the sliding base 81. The lower surface of the indexing plate 74 is fixedly connected to the sliding base 81 by bolts. The lower end face of the sliding base 81 has blind holes, which are connected to the geared motor bracket 72 by bolts. The ring teeth 83 in the precision ring gear guide rail are fixedly connected to the gear guide rail 82, and the two are fixed to the base plate 3 by bolts. The graduated precision ring gear guide rail protective shell 15 is located outside the gear guide rail 82 and is connected to the base plate 3 by bolts. The geared motor 73 is fixedly connected to the geared motor bracket 72, and the output end of the geared motor 73 is interference-fitted with the bearing seat at the bottom of the sliding base 81. The end of the output shaft of the geared motor 73 is fixedly connected to the cylindrical gear 70. The center line of the cylindrical gear 70 coincides with the rotation center line of the indexing plate 75. The roller 84 is fixedly connected to the geared motor bracket 72 by bolts. The roller 84 is engaged with the gear ring guide rail 82. The geared motor 73 drives the cylindrical gear 70 to mesh with the ring gear 83. An angle pointer is provided on the bearing seat. The angle pointer is engaged with the scale line of the precision ring gear guide rail protective shell 15.

[0036] It should be noted that rotation angle sensors are installed on both the second drive shaft 10 and the third drive shaft 78. When the active test gear 80 and the driven test gear 17 mesh and transmit power, the permanent magnet synchronous motor 5 acts as a load and the loader 77 provides power. The rotation angle sensors can be used to determine the rotation angle between the active test gear 80 and the driven test gear 17, thereby determining the transmission efficiency between the two after the driven test gear 17 is adjusted in the X, Y, and Z axes or after the shaft intersection angle is adjusted.

[0037] 1) Adjustment method in the Y-axis direction Rotating the first micrometer 7 on the first manual adjustment slide 46 moves the first rack 35 connected to the upper body of the first manual adjustment slide 46, thereby causing the cylindrical gear shaft 34 to rotate, which in turn causes the second rack 36 mounted on the connecting plate 33 to move horizontally, thereby causing the motor base plate 4 to move along the Y-axis. Rotating the first rocker handle 54 causes the first bevel gear 20 and the second bevel gear 19 to mesh, thereby causing the rolling screw to rotate, realizing the movement of the screw nut along the Y-axis.

[0038] 2) Adjustment method in the Z-axis direction By rotating the second crank handle 50, the third bevel gear 64 is driven to rotate. The third bevel gear 64 meshes with the fourth bevel gear 65, thereby driving the fifth bevel gear 68 at the other end of the optical shaft 67 to rotate, which in turn drives the sixth bevel gear 69 connected to the lead screw nut to rotate, thus realizing the vertical movement of the lead screw nut, thereby driving the lifting slide plate 31 to move vertically. When the lifting slide plate 31 is separated from the support plate 61 of the pneumatic lifting support mechanism, the cylinder 12 will push the support plate 61 to coincide with the lower end surface of the lifting slide plate 31. The vertical movement distance of the lead screw nut can be obtained by the scale displayed by the vertical caliper 45.

[0039] 3) Adjustment method for the X-axis direction The upper body of the second manual adjustment slide 53 is fixedly connected to the lifting slide plate base 30. A boss is provided on the lower slide plate 58, and the lower body of the second manual adjustment slide 53 is fixedly connected to the boss on the lower slide plate 58. By rotating the third crank 47, the lead screw nut is moved horizontally, thereby moving the lower slide plate 58 horizontally. The rotation angle of the third crank 47 is measured by the second adjustable dial 48, thereby obtaining the horizontal movement distance of the lead screw nut.

[0040] 4) Method for adjusting the angle of the test gear shaft By rotating the fine-tuning knob on the indexing plate 74, the loader base plate 75 is rotated to fine-tune the angle of the driven test gear 17. The geared motor 73 drives the cylindrical gear 70 to mesh with the ring gear 83. The roller 84 cooperates with the gear ring guide rail 82 to provide support for the angle adjustment rotating platform, thereby driving the sliding base 81 connected to the geared motor bracket 72 to adjust its angle around the center line of the ring gear 83. This, in turn, drives the indexing plate 74 connected to the sliding base 81 to adjust its angle around the center line of the ring gear 83. Finally, this drives the loader base plate 75 connected to the indexing plate 74 to perform coarse angle adjustment around the center line of the ring gear 83.

[0041] 5) Calculation method for adjusting installation error of test bench Specific calculation method: The hyperboloid gear to be measured is installed on the disc shaft corresponding to the second drive shaft 10, and the rotation angle of the first crank 54 is determined according to the first adjustable dial 55. The coarse adjustment distance of the hypoid gear in the Y-axis direction can be obtained based on the value displayed by the first micrometer 7 inside the first manual adjustment slide 46. This allows for the fine-tuning distance of the hypoid gear in the Y-axis direction; furthermore, rotating the second crank 50 causes the lifting slide 31 to separate from the 0 mark of the vertical caliper 45, which displays the lifting height as... The adjustment distance of the hypoid gear in the Z-axis direction can be obtained; the rotation angle of the third crank 47 is determined according to the second adjustable dial 48. The coarse adjustment distance of the hypoid gear in the X-axis direction can be obtained based on the value displayed by the second micrometer 22 inside the second manual adjustment slide 53. The fine-tuning distance of the hypoid gear in the X-axis direction can be obtained; the cylindrical gear 70 and the ring gear 83 are driven by the reduction motor 73 to mesh and transmit the transmission, and the angle pointer will indicate the angle on the graduated precision ring gear guide rail protective shell 15. The coarse adjustment angle of the hypoid gear can be obtained by rotating the fine adjustment knob on the index dial 74; the angle displayed on the knob is N. 6， The fine-tuning angle of the hypoid gear can be obtained.

[0042] When adjusting the distance in the Y-axis direction, the rotation angle of the first rocker arm 54 is displayed on the first adjustable dial 55 by rotating the first rocker arm 54. Converted to radians, we get From this, we can deduce that the first crank's rotation radius is 54 radians. The first crank handle 54 passes through the lifting slide plate 31 and is fixedly connected to the first bevel gear 20, so the rotation arc of the first bevel gear 20 can be obtained as follows: Since the first bevel gear 20 meshes with the second bevel gear 19, the number of teeth of the first bevel gear 20 is... The second bevel gear has 19 teeth. The transmission ratio is , can be obtained Since the first bevel gear 20 and the second bevel gear 19 have the same number of teeth, the rotational radius of the second bevel gear 19 can be calculated as follows: The second bevel gear 19 is fixedly connected to one end of the first rolling screw 63, so the rotational radius of the first rolling screw 63 is: Converting to angles, the rotation angle of the first rolling screw 63 is: Since the displacement of the first lead screw nut 71 on the lead screw axis is called the lead when the first rolling lead screw 63 rotates one revolution, that is, the distance that the first lead screw nut 71 moves when the first rolling lead screw 63 rotates 360° is the lead. Furthermore, the lead (S1) = number of lines (n1) * pitch (P1) holds. Therefore, when the first rolling lead screw 63 rotates by an angle of... At that time, the displacement of the first lead screw nut 71 on the lead screw axis is By rotating the first micrometer 7 on the first manual adjustment slide 46, the first rack 35 connected to the upper body of the first manual adjustment slide 46 is moved, and the value displayed by the first micrometer 7 in the first manual adjustment slide 46 corresponding to the first position fine adjustment mechanism is adjusted. This causes the corresponding cylindrical gear shaft 34 to rotate, which in turn causes the second rack 36 mounted on the connecting plate 33 to move horizontally. The conversion relationship between the rack and gear is exactly an inverse relationship, which cancels each other out. Therefore, the distance the second rack 36 moves is equal to the value displayed by the first micrometer 7 inside the first manual adjustment slide 45. In summary, the total displacement of the driven test bevel gear 17 in the Y-axis direction is: ,Right now: .

[0043] When adjusting the distance along the Z-axis, rotating the second crank 50 causes the third bevel gear 64 at one end of the second crank 50 to rotate. The third bevel gear 64 meshes with the fourth bevel gear 65, thereby driving the fifth bevel gear 68 at the other end of the optical shaft 67 to rotate. This, in turn, drives the sixth bevel gear 69 connected to the lead screw nut to rotate, thus achieving the vertical movement of the lead screw nut. The height of the adjustment is displayed by the vertical caliper 45. Thus, the vertical movement distance of the lead screw nut is obtained. In summary, the total displacement of the driven test bevel gear 17 in the Z-axis direction is... .

[0044] By rotating the third crank 47, the rotation angle N3 of the third crank 47, displayed on the second adjustable dial 48, can be converted into radians to obtain... Therefore, it can be deduced that the rotation arc of the third crank 47 is... The third crank 47 is fixedly connected to the third rolling screw 49, thus the rotational radius of the third rolling screw 49 is calculated as follows: Converting this to an angle, the rotation angle of the lead screw 49 can be obtained as follows: Since the displacement of the third lead screw nut 28 on the lead screw axis is called the lead when the lead screw rotates one revolution in the third rolling lead screw 49, that is, the distance the lead screw nut moves when the lead screw rotates 360° is the lead. Furthermore, the lead (S2) = number of threads (n2) * pitch (P2) holds. Therefore, it can be deduced that when the lead screw rotates at an angle of... At that time, the displacement of the lead screw nut on the lead screw axis is Rotating the second micrometer 22 on the second manual adjustment slide 53 moves the upper body of the second manual adjustment slide 53, thereby causing the lifting slide plate 30 to move horizontally. Since the lifting slide plate 30 is fixedly connected to the upper body of the second manual adjustment slide 53, the value displayed by the second micrometer 22 inside the second manual adjustment slide 53... Let be the distance the lifting slide plate 30 moves. In summary, the total displacement of the driven test bevel gear 17 in the X-axis direction is... ,Right now: .

[0045] Furthermore, the angle pointer on the bearing seat at the bottom of the sliding base 81 coincides with the 0 mark on the graduated precision ring gear guide rail protective housing 15. The geared motor 73 drives the cylindrical gear 70 to mesh with the ring gear 83, and the roller 84 cooperates with the gear rail 82 to provide support for the angle adjustment rotating platform. The angle pointer indicates the angle on the graduated precision ring gear guide rail protective housing 15. .

[0046] The centerline of the indexing plate 74 coincides with the centerline of the loader base plate 75 and the centerline of the cylindrical gear 70. The upper surface of the indexing plate 74 is fixedly connected to the loader base plate 75, and the lower surface of the indexing plate 74 is fixedly connected to the sliding base 81. The centerline of the sliding base 81 is parallel to the direction indicated by the angle pointer. By rotating the fine-tuning knob on the indexing plate 74, the loader base plate 75 is rotated, and the indexing plate 74 will display the angle rotated. In summary, the adjustment angle of the quasi-hyperboloid gear is... ,Right now: N=N 5 -N 6.

[0047] In summary, the advantages of this invention are: 1. Wide applicability: This test bench is suitable for comprehensive performance testing of installation errors of various commonly used transmission gears such as hypoid gears, spur gears, and helical gears.

[0048] 2. Precise adjustment: Coarse and fine adjustments can be made in the X, Y, and Z axes, and the adjustment distance can be accurately measured.

[0049] 3. Fine adjustment of axis intersection angle: It can perform coarse and fine adjustment of axis intersection angle and accurately obtain the adjustment angle value.

[0050] 4. Convenient operation: All cranks are located on the same side, simplifying the operation process and improving operating efficiency.

[0051] 5. High measurement accuracy and convenience: This test bench not only improves the accuracy of measurement, but also makes the measurement process more convenient and simple, further improving operational efficiency.

[0052] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0053] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0054] Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily indicate the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0055] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears, characterized in that, include: The base plate (3) is provided with a movable lifting platform and an angle adjustment rotating platform; A mobile lifting platform is provided, on which a permanent magnet synchronous motor (5) is installed. The permanent magnet synchronous motor (5) is fixedly connected to a transmission shaft via a coupling. The end of the transmission shaft away from the permanent magnet synchronous motor (5) is used to connect to the driven test gear (17). The mobile lifting platform is also provided with a first position coarse adjustment mechanism, a fine adjustment mechanism, a second position coarse adjustment mechanism, a fine adjustment mechanism, and a third position adjustment mechanism for adjusting the movement of the driven test gear (17) along the length, width, and height directions of the base plate (3), respectively. An angle-adjusting rotary platform is provided, on which a loader (77) is installed. The loader (77) is fixedly connected to a drive shaft via a coupling. The end of the drive shaft away from the loader (77) is used to connect to the active test gear (80). The active test gear (80) and the driven test gear (17) mesh and drive each other. The angle-adjusting rotary platform is also provided with a fourth-position coarse adjustment mechanism and a fine adjustment mechanism for adjusting the angle between the shafts of the active test gear (80) and the driven test gear (17).

2. The test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears according to claim 1, characterized in that: The first position coarse adjustment mechanism includes a lifting slide plate (31). A first adjustable dial (55) is installed on the side wall of the lifting slide plate (31) and a first rocker arm (54) is rotatably connected to it. A pointer on the first rocker arm (54) is used to cooperate with the scale on the first adjustable dial plate (55). A second guide rail (41) is installed on both sides of the lifting slide plate (31) along the length of the base plate (3). A first rolling screw (63) is installed in the middle of the lifting slide plate (31) along the length of the base plate (3). A second slider (44) is slidably connected to the second guide rail (41). A first screw nut (71) passes through the middle of the first rolling screw (63) and is threadedly connected to it. The first rocker arm (54) drives the first rolling screw (63) to rotate through a bevel gear transmission mechanism. The second slider (44) and the first screw nut (71) are used to support the upper slide plate (37). The upper slide plate (37) is used to support the permanent magnet synchronous motor (5).

3. The test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears according to claim 2, characterized in that: The first position fine-tuning mechanism includes a bracket (32), which is fixedly connected to the middle of one side of the upper slide plate (37). A first manual adjustment slide (46) is provided inside the bracket (32). The lower body of the first manual adjustment slide (46) is fixedly connected to the bracket (32), and the upper body of the first manual adjustment slide (46) is slidably connected relative to its lower body. A first rack (35) is mounted on the upper body of the first manual adjustment slide (46). A cylindrical gear shaft (34) is rotatably connected inside the bracket (32) via a bearing. Gears (6) are fixedly connected to the upper and lower ends of the cylindrical gear shaft (34). A gear (6) is located at the lower end of the cylindrical gear shaft (34). 6) Gear (6) meshes with the first rack (35), and gear (6) located at the upper end of the cylindrical gear shaft (34) meshes with the second rack (36). The second rack (36) is used to drive the motor base plate (4) to move along the length direction of the base plate (3). A first micrometer (7) is installed on the lower platform of the first manual adjustment slide (46). The output end of the first micrometer (7) is used to drive the upper platform of the first manual adjustment slide (46) to slide back and forth relative to the lower platform. A first slider (60) is installed on both sides of the lower surface of the motor base plate (4). The first slider (60) is slidably connected to the first guide rail (38). The first guide rail (38) is set on both sides of the upper surface of the upper slide plate (37).

4. The test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears according to claim 3, characterized in that: The third position adjustment mechanism includes a lifting slide plate base (30), on which a second rocker arm (50) is rotatably connected. The second rocker arm (50) drives a second rolling screw (21) to rotate through a bevel gear transmission mechanism. The upper end of the second rolling screw (21) passes through a second screw nut (11) and is threadedly connected to it. A second sleeve (18) is bolted to the upper surface of the second screw nut (11). The upper end of the second sleeve (18) is bolted to the lower surface of the lifting slide plate (31). A vertical caliper (45) is installed around the lifting slide plate base (30). A first sleeve (9) is installed on the lower surface of the lifting slide plate (31). The first sleeve (9) and the vertical caliper (45) are fitted with a clearance, and the pointer on the first sleeve (9) matches the scale on the vertical caliper (45).

5. The test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears according to claim 4, characterized in that: The upper surface of the lifting slide plate base (30) is symmetrically equipped with pneumatic lifting support mechanisms on both sides. The pneumatic lifting support mechanisms include a support base plate (85) and a cylinder (12). The support base plate (85) is fixedly connected to the lifting slide plate base (30). Four support rods (66) are rotatably connected to the support base plate (85). Two support rods (66) on the same side of the support base plate (85) intersect each other. A connecting rod (86) connects the two parallel support rods (66). The two ends of the cylinder (12) are rotatably connected to the connecting rod (86). The support rods (66) are slidably engaged with the support top plate (61). The upper surface of the support top plate (61) is in contact with the lower surface of the lifting slide plate (31).

6. The test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears according to claim 5, characterized in that: The second position coarse adjustment mechanism includes a lower slide plate base (25). The upper surface of the lower slide plate base (25) is provided with first lead screw baffles (27) on both sides. A fourth guide rail (26) is provided between the two first lead screw baffles (27). A fourth slider (57) is slidably connected on the fourth guide rail (26). A third rolling lead screw (49) is connected in the middle of the first lead screw baffle (27). A third rocker (47) is fixedly connected to one end of the third rolling lead screw (49). The pointer on the third rocker (47) is matched with the scale on the second adjustable dial (48). The second adjustable dial (48) is installed on the first lead screw baffle (27). The third rolling lead screw (49) passes through the third lead screw nut (28) and is threadedly connected to it. The fourth slider (57) and the third lead screw nut (28) are used to support the lifting slide plate base (30).

7. The test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears according to claim 6, characterized in that: The second position fine-tuning mechanism includes a second manual adjustment slide (53), the lower body of which is fixedly connected to the lower slide plate (58). The upper body of the second manual adjustment slide (53) is slidably connected relative to the lower body and fixedly connected to the lifting slide plate base (30). A second micrometer (22) is installed on the second manual adjustment slide (53). The output end of the second micrometer (22) is used to drive the upper body of the second manual adjustment slide (53) to reciprocate along the width direction of the base plate (3). A third slider (59) is installed on both sides of the lower surface of the lifting slide plate base (30). A third guide rail (52) passes through the third slider (59) and is fixed on the lower slide plate (58).

8. The test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears according to claim 1, characterized in that: The fourth position coarse adjustment mechanism includes a sliding base (81), the upper end of which supports the active test gear (80). The lower end face of the sliding base (81) is provided with a blind hole. A reduction motor (73) is installed inside the sliding base (81). The output end of the reduction motor (73) is interference-fitted with the bearing seat at the bottom of the sliding base (81). The end of the output shaft of the reduction motor (73) is fixedly connected to the cylindrical gear (70). The roller (84) on the sliding base (81) is engaged with the gear ring guide rail (82). The cylindrical gear (70) meshes with the ring gear (83). An angle pointer is provided on the bearing seat. The angle pointer is engaged with the scale line of the precision ring gear guide rail protective shell (15) with scale. The ring gear (83) is fixedly connected to the gear ring guide rail (82). The two are fixedly connected to the base plate (3) by bolts.

9. The test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears according to claim 8, characterized in that: The fourth position fine adjustment mechanism includes an indexing plate (74), the upper surface of which is used to drive the loader base plate (75) to rotate, the loader (77) is mounted on the loader base plate (75), the center line of the indexing plate (74) coincides with the center line of the loader base plate (75) and the cylindrical gear (70), and the lower surface of the indexing plate (74) is fixedly connected to the sliding base (81).

10. The test bench for testing the installation error performance of spiral bevel gears / quasi-hypoid gears according to claim 9, characterized in that: The other end of the drive shaft away from the loader (77) is a disc shaft, which is connected to a gear clamp (79) via a blind hole thread. The gear clamp (79) is used to clamp the test drive gear (80).

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