Gearbox simulation testing apparatus

Abstract

The application discloses a gearbox simulation detection equipment, which comprises a main box, a synchronous motor, a lifting plate, a horizontal moving plate and a fixing frame. The main box is internally provided with a buffer block, the buffer block is connected with an output shaft of the main box. The output shaft of the synchronous motor is connected with the buffer block, and the output shaft of the synchronous motor is coaxially arranged with the output shaft of the main box. The lifting plate supports the main box. The bottom of the lifting plate is connected with multiple lifting screws. The horizontal moving plate is provided with multiple vertical through holes which are movably sleeved with threaded sleeves, and each lifting screw is connected with one threaded sleeve. The side wall of the threaded sleeve is fixed with a driven sprocket, the multiple driven sprockets are wound with a chain, and the chain is connected with a driving sprocket. The bottom of the horizontal moving plate is provided with a sliding block. The bottom of the horizontal moving plate is fixed with a supporting block which is provided with a threaded through hole. The top of the fixing frame is provided with a sliding rail which is matched with the sliding block. The equipment can be suitable for detecting multiple types of gearboxes, and the universality is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive parts testing equipment, and more particularly to transmission simulation testing equipment. Background Technology

[0002] In real-world driving conditions, the electronic control system of an automatic transmission collects vehicle operating parameters, including actual acceleration, speed, and engine power. When refurbishing an automatic transmission, dynamic simulation testing is required to verify whether the repaired transmission meets the original manufacturer's technical standards.

[0003] When testing the quality of a gearbox, the input shaft of the gearbox is first connected to the output shaft of the motor (specifically, the output shaft of the motor, the output shaft of the main unit, and the input shaft of the gearbox are connected in sequence, with the main unit serving as an intermediate transmission structure). This allows the motor to provide power to the gearbox. Simultaneously, the output shaft of the gearbox is connected to the load system (the load system is equivalent to the wheels being in operation). This allows for measurement of the gearbox under added load conditions, thereby testing the actual quality of the gearbox.

[0004] However, existing transmission simulation testing equipment can generally only be used for one or a few transmission models, meaning it has poor versatility. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a transmission simulation testing device that can be applied to testing various types of transmissions, thus improving versatility.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] Transmission simulation testing equipment, including:

[0008] A main unit housing is used to drive the gearbox. A buffer block is provided inside the main unit housing. The buffer block is connected to the output shaft of the main unit housing. The output shaft of the main unit housing is used to drive the gearbox.

[0009] A synchronous motor, the output shaft of which is connected to the buffer block, and the output shaft of the synchronous motor is coaxially arranged with the output shaft of the main unit;

[0010] A lifting plate is located directly below the main unit chassis and supports the main unit chassis; multiple lifting screws are connected to the bottom of the lifting plate;

[0011] A horizontally movable plate has multiple vertical through holes, and threaded sleeves are movably fitted into each vertical through hole. Each lifting screw is threadedly connected to one of the threaded sleeves in a corresponding manner. A driven sprocket is fixed to the side wall of each threaded sleeve, and multiple driven sprockets are sequentially wound around each other by a chain. The chain is connected to a driving sprocket, and the driving sprocket is driven by a drive motor that can rotate in both directions. A slider is provided at the bottom of the horizontally movable plate. A support block is fixed at the bottom of the horizontally movable plate, and the support block has threaded through holes.

[0012] A fixed frame is provided with a slide rail on its top, and the slider is movably engaged with the slide rail; the fixed frame is equipped with a horizontal drive mechanism, which drives a horizontal screw rod, and the horizontal screw rod is threadedly connected to the threaded through hole of the support block.

[0013] Furthermore, the gearbox simulation testing equipment also includes a swing seat, which is sandwiched between the lifting plate and the main unit, and is supported by the lifting plate and supports the main unit;

[0014] The lifting plate is fixed with a stationary sun gear, which is placed horizontally. The swing seat is connected to the first...

[0015] A pivot shaft is pivotally connected to the sun gear, the axis of the first pivot shaft is collinear with the axis of the sun gear, and the oscillating seat is connected to a planetary gear via a second pivot shaft, the planetary gear meshing with the sun gear.

[0016] Furthermore, the line connecting the starting tooth of the sun gear to the axis of the sun gear is a first line segment, and the line connecting the ending tooth of the sun gear to the axis of the sun gear is a second line segment. There are continuous teeth between the starting tooth and the ending tooth. The included angle between the first line segment and the second line segment is 90°.

[0017] Furthermore, the lifting plate has at least two first positioning holes, and the distance between the two first positioning holes and the sun gear is equal. The swing seat is connected to a first positioning pin corresponding to the first positioning hole. When the planetary gear contacts the starting gear tooth, the first positioning pin corresponds to one of the first positioning holes. When the planetary gear contacts the ending gear tooth, the first positioning pin corresponds to the other first positioning hole.

[0018] Furthermore, the gearbox simulation testing equipment also includes a first clamping mechanism, which includes a first prying shaft and a first lever pivotally connected to the first prying shaft. One end of the first lever is drivenly connected to the first positioning pin. The first lever is connected to a first compression spring, which is used to drive the first positioning pin to press against the first positioning hole.

[0019] Furthermore, the horizontal drive mechanism includes a vertical motor and a reducer driven by the vertical motor, and the horizontal screw is driven by the reducer; the fixed frame is fixedly connected to the vertical motor through a crossbeam.

[0020] Furthermore, the buffer block is made of rubber.

[0021] Further, the main unit chassis includes a chassis body, a vertical rotating support frame, a mounting plate, and a second clamping mechanism; the outer wall of the chassis body is provided with a boss, and the chassis body has a horizontal through hole, which penetrates the boss from the inner wall of the chassis body toward the boss; the output shaft of the main unit chassis extends out of the chassis body along the horizontal through hole; the boss has an annular groove surrounding the horizontal through hole and coaxial with the horizontal through hole, and the vertical rotating support frame has a socket hole that movably engages with the annular groove; the vertical rotating support frame is fixedly connected to multiple spaced and parallel insert rods, and the mounting plate has multiple distributed second positioning holes, the insert rods being used to insert into the second positioning holes; the second clamping mechanism is used to lock the vertical rotating support frame onto the chassis body.

[0022] Furthermore, the second clamping mechanism includes a second pry shaft and a second lever pivotally connected to the second pry shaft. One end of the second lever is connected to a second positioning pin. The housing has a clearance hole, and the two ends of the clearance hole are respectively connected to the interior of the housing and the annular groove. The second positioning pin is movably inserted into the clearance hole. The vertical rotating support frame has multiple third positioning holes, which are distributed at intervals around the axis of the groove. The second lever is connected to a second compression spring, which drives the second positioning pin to press against the third positioning hole.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. A synchronous motor is used, which is smaller in size than the asynchronous motors used in existing technologies for the same power. Furthermore, while ensuring the synchronous motor meets power requirements, its output shaft is coaxially arranged with the main unit's output shaft. Therefore, the main unit does not need additional transmission mechanisms, resulting in a smaller main unit and reduced space occupation. Additionally, buffer blocks are used to connect the output shafts of both the synchronous motor and the main unit, avoiding a rigid connection between them. This not only prevents excessive vibration but also reduces the coaxiality requirements between the output shafts of the synchronous motor and the main unit, thus simplifying manufacturing.

[0025] 2. The lifting plate is located directly below the main unit housing and supports it; multiple lifting screws are connected to the bottom of the lifting plate. When the lifting plate rises or falls, the main unit housing can rise and fall synchronously based on the lifting plate supporting it, thereby enabling the output shafts of different gearboxes to connect with the rotating shafts of the load system, thus improving the versatility of the gearbox simulation testing equipment.

[0026] 3. By supporting and linking the lifting plate with the horizontal moving plate, the gearbox installed on the main unit can be moved horizontally to adjust its position in the horizontal direction. This allows the output shafts of different gearboxes to be connected with the rotating shaft of the load system, thus improving the versatility of the gearbox simulation testing equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the gearbox simulation testing equipment of the present invention;

[0028] Figure 2 for Figure 1 The diagram shows a partial structural schematic of the gearbox simulation testing equipment; however, the swing mount, main unit housing, and synchronous motor are not shown.

[0029] Figure 3 for Figure 2 Exploded view;

[0030] Figure 4 for Figure 1 The diagram shows the connection between the swing base, main unit, and synchronous motor. The mounting plate is shown in an exploded state to make the structure clearer.

[0031] Figure 5 for Figure 4 Further decomposition states;

[0032] Figure 6 for Figure 4 Another perspective view, in which the mounting plate is in the assembly state;

[0033] Figure 7 for Figure 1 The diagram shows the connection structure between the main unit chassis and the mounting plate.

[0034] Figure 8 for Figure 1 The diagram shows the structure of the first clamping mechanism.

[0035] Figure 9 for Figure 1 The diagram shows the structure of the second clamping mechanism.

[0036] In the diagram: 1. Main chassis; 2. Buffer block; 3. Output shaft of the main chassis; 4. Synchronous motor; 5. Lifting plate; 6. Lifting screw; 7. Horizontal moving plate; 8. Threaded sleeve; 9. Driven sprocket; 10. Chain; 11. Drive sprocket; 12. Drive motor; 13. Slider; 14. Support block; 15. Fixing frame; 16. Slide rail; 17. Horizontal drive mechanism; 18. Horizontal screw; 19. Swing seat; 20. Sun gear; 21. Planetary gear; 22. First positioning hole; 23. First positioning pin; 24. First clamping mechanism; 25. First prying shaft; 26. First lever; 27. First compression spring; 28. Vertical motor; 29. ​​Reducer; 30. Crossbeam; 31. Housing; 32. Vertical rotating support frame; 33. Mounting plate; 34. Second clamping mechanism; 35. Boss; 36. Horizontal through hole; 37. Annular groove; 38. Socket hole; 39. Insert rod; 40. Second positioning hole; 41. Second prying shaft; 42. Second lever; 43. Second positioning pin; 44. Clearance hole; 45. Third positioning hole; 46. Second compression spring; 47. Load system. Detailed Implementation

[0037] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0038] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0039] 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 one or more

[0040] Any and all combinations of the related listed items.

[0041] Figure 1 A preferred embodiment of the gearbox simulation testing device of the present invention is shown, comprising: a main unit 1, a synchronous motor 4, a lifting plate 5, a horizontal moving plate 7, and a fixing frame 14.

[0042] See Figure 4 The main unit 1 is used to drive the gearbox. The main unit 1 is equipped with a buffer block 2, which is preferably made of rubber or plastic. The buffer block 2 is connected to the output shaft 3 of the main unit 1, which is used to drive the gearbox.

[0043] The output shaft of synchronous motor 4 is connected to buffer block 2, and the output shaft of synchronous motor 4 is coaxially arranged with the output shaft of main unit 3. Thus, the power of synchronous motor 4 is transmitted to the gearbox via the output shaft of synchronous motor 4 and the output shaft of main unit 3, thereby providing the necessary test power to the gearbox. For input power, see [link to relevant documentation]. Figure 1 The load system 46 is then connected to the output shaft of the gearbox via its rotating shaft (the rotating shaft of the load system 46 acts like a wheel, allowing the gearbox to be tested under simulated actual working conditions). If necessary, a horizontal linear conveyor mechanism can be mounted on the load system 46 to adjust the distance between the two load systems 46. It should be noted that, in this section, a synchronous motor 4 is used, which is smaller in size than the asynchronous motors used in existing technologies for the same power. Furthermore, given that the synchronous motor 4 meets power requirements, its output shaft is coaxially arranged with the output shaft 3 of the main unit housing. Therefore, the main unit housing 1 does not need to have additional transmission mechanisms, resulting in a smaller main unit housing and reduced space requirements. Additionally, a buffer block 2 is used to connect the output shaft of the synchronous motor 4 and the output shaft 3 of the main unit housing, avoiding a rigid connection between them. This not only prevents excessive vibration but also reduces the coaxiality requirement between the output shafts of the synchronous motor 4 and the main unit housing, thus reducing manufacturing difficulty.

[0044] See Figure 1The lifting plate 5 is located directly below the main unit 1 and supports the main unit 1; multiple lifting screws 6 are connected to the bottom of the lifting plate 5. It can be understood that when the lifting plate 5 rises or falls, based on the main unit 1 supported by the lifting plate 5, the main unit 1 can rise and fall synchronously, thereby enabling the output shafts of different gearboxes to connect with the rotating shaft of the load system 46, thus improving the versatility of the gearbox simulation testing equipment.

[0045] See Figures 1-3 The horizontally moving plate 7 has multiple vertical through holes, and threaded sleeves 8 are movably fitted into these holes. Each lifting screw 6 is threadedly connected to one of the threaded sleeves 8. A driven sprocket 9 is fixed to the side wall of each threaded sleeve 8. Multiple driven sprockets 9 are sequentially wound around each other by a chain 10. The chain 10 is connected to a driving sprocket 11, which is driven by a drive motor 112 capable of forward and reverse rotation. Thus, driven by the drive motor 112, the driving sprocket 11, chain 10, and driven sprockets 9 are sequentially driven, causing the multiple threaded sleeves 8 to rotate around their own axes. Because the threaded sleeves 8 are threadedly connected to the lifting screws 6, and the threaded sleeves 8 cannot move axially, the lifting screws 6 will rise or fall when the threaded sleeves 8 rotate, thereby achieving the lifting movement of the lifting plate 5.

[0046] See Figure 2 and Figure 3 The horizontal moving plate 7 has a slider 12 at its bottom and a support block 13 fixed at its bottom, with a threaded through hole. The top of the fixed frame 14 has a slide rail 15, with the slider 12 movably engaging with the slide rail 15. The fixed frame 14 is equipped with a horizontal drive mechanism 16, which drives a horizontal screw 17, which is threadedly connected to the threaded through hole of the support block 13. This configuration allows the horizontal drive mechanism 16 to drive the horizontal screw 17 to move axially, thereby moving the horizontal moving plate 7 along the extension direction of the slide rail 15. Simultaneously, the horizontal moving plate 7 drives the lifting plate 5 to move. This allows the gearbox mounted on the main housing 1 to move horizontally, adjusting its horizontal position, enabling the output shafts of different gearboxes to connect with the rotating shaft of the load system 46, thus improving the versatility of the gearbox simulation testing equipment. The support block 13 serves not only as a transmission element but also as a support for the horizontal screw 17, improving structural compactness.

[0047] The horizontal drive mechanism 16 includes a vertical motor 27, a reducer 28 driven by the vertical motor 27, and a horizontal screw 17 connected to the reducer 28. The fixed frame 14 is fixedly connected to the vertical motor 27 via a crossbeam 29. The vertical motor 27 is supported by support columns. It can be understood that, as alternatives to the horizontal drive mechanism 16, it can be a combination of a motor, a worm gear, and a worm shaft; or a combination of a motor and a belt, etc.

[0048] As a further preferred implementation:

[0049] See Figure 7 The gearbox simulation testing equipment also includes a swing seat 18, which is sandwiched between the lifting plate 5 and the main unit 1, and is supported by the lifting plate 5 and supports the main unit 1.

[0050] A stationary sun gear 19 is fixed to the lifting plate 5. The sun gear 19 is placed horizontally. The swing seat 18 is pivotally connected to the sun gear 19 via a first pivot shaft, the axis of which is collinear with the axis of the sun gear 19. The swing seat 18 is connected to a planetary gear 20 via a second pivot shaft, and the planetary gear 20 meshes with the sun gear 19. This arrangement allows the main unit 1, supported by the swing seat 18, to swing with the swing seat 18, thereby further adjusting the orientation of the gearbox. This allows the output shafts of different gearboxes to connect with the rotating shaft of the load system 46, further improving the versatility of the gearbox simulation testing equipment. It should be noted that, based on the reduced size of the synchronous motor 4 and the main unit 1, the synchronous motor 4 and the main unit 1 are allowed to swing with the swing seat 18 without spatial interference, and the swinging capability of the swing seat 18 better meets practical needs and purposes.

[0051] As a further preferred embodiment: the line connecting the starting tooth of the sun gear 19 to its axis is the first line segment, and the line connecting the ending tooth of the sun gear 19 to its axis is the second line segment. The starting and ending teeth have continuous teeth; the angle between the first and second line segments is 90°. This configuration allows the oscillating seat 18 to be limited by the starting and ending teeth respectively. For example, when the planetary gear teeth roll to contact the starting teeth, since the outer wall of the sun gear 19 has no tooth grooves, the planetary gear 20 cannot continue rolling around the sun gear 19, thus achieving positioning and limitation. In other words, positioning and limiting the planetary gear 20 by using the starting and ending teeth of the sun gear 19 can significantly improve production efficiency, and in particular, it can prevent the oscillating seat 18 from excessively oscillating and collapsing, thereby avoiding major safety accidents. It should be noted that, according to actual production conditions, generally only a 90° horizontal reciprocating adjustment of the main unit 1 is required.

[0052] As a further preferred implementation: see [link] Figure 7 It is understandable that after the main unit 1 rotates horizontally by 90° with the swing seat 18, it is best to position and fix the swing seat 18. Therefore, the lifting plate 5 is provided with at least two first positioning holes 21. The distance between the two first positioning holes 21 and the sun gear 19 is equal. The swing seat 18 is connected with a first positioning pin 22 corresponding to the first positioning hole 21. When the planetary gear 20 contacts the starting gear tooth, the first positioning pin 22 corresponds to one of the first positioning holes 21. When the planetary gear 20 contacts the ending gear tooth, the first positioning pin 22 corresponds to the other first positioning hole 21.

[0053] As a further preferred implementation: see [link] Figure 8 To facilitate the operation of the first positioning pin 22, the gearbox simulation testing equipment also includes a first clamping mechanism 23. The first clamping mechanism 23 includes a first pry bar 24 and a first lever 25 pivotally connected to the first pry bar 24. One end of the first lever 25 is drivenly connected to the first positioning pin 22. The first lever 25 is connected to a first compression spring 26, which is used to drive the first positioning pin 22 to press against the first positioning hole 21.

[0054] As a further preferred implementation: see [link] Figure 4 and Figure 5 The main unit 1 includes a housing 30, a vertical rotating support frame 31, a mounting plate 32, and a second clamping mechanism 33. The outer wall of the housing 30 has a boss 34, and the housing 30 has a horizontal through hole 35. The horizontal through hole 35 penetrates the boss 34 from the inner wall of the housing 30 towards the boss 34, allowing the output shaft 3 of the main unit 30 to extend out of the housing 30 along the horizontal through hole 35. The boss 34 has an annular groove 36 surrounding the horizontal through hole 35 and coaxial with it. The vertical rotating support frame 31 has a socket 37 that movably engages with the annular groove 36. The vertical rotating support frame 31 is fixedly connected to multiple spaced and parallel insertion rods 38. The mounting plate 32 has multiple distributed second positioning holes 39. The insertion rods 38 are used to insert into the second positioning holes 39. By using different combinations of the multiple second positioning holes 39, the insertion angle of the mounting plate 32 can be adjusted, thereby adjusting the orientation of the gearbox. The angle of the gearbox can be further adjusted by rotating the vertical rotating support frame 31. To facilitate locking and unlocking the vertical rotating support frame 31, the second clamping mechanism 33 is used to lock the vertical rotating support frame 31 onto the housing 30.

[0055] As a further preferred implementation: see [link] Figure 9The second clamping mechanism 33 includes a second pry shaft 40 and a second lever 41 pivotally connected to the second pry shaft 40. One end of the second lever 41 is connected to a second positioning pin 42. The housing 30 has an clearance hole 43 (see...). Figure 6 The clearance hole 43 has two ends connected to the interior of the housing 30 and the annular groove 36, respectively. The second positioning pin 42 is movably inserted into the clearance hole 43. The vertical rotating support frame 31 has multiple third positioning holes 44, which are distributed at intervals around the axis of the annular groove 36. The second lever 41 is connected to a second compression spring 45, which drives the second positioning pin 42 to press against the third positioning holes 44. It can be understood that, as an alternative to the second clamping mechanism 33, the second clamping mechanism 33 can also be a common braking mechanism or a magnetic element, which can limit the swing of the vertical rotating support frame 31 by magnetic force.

[0056] Its working principle is as follows:

[0057] Because different gearboxes have different relative positions to their input shafts, the output shafts of different gearboxes may face different directions after being installed with the main unit housing 1. To ensure that the output shafts of different gearboxes are coaxially aligned with the rotating shaft of the load system 46 after installation in this gearbox simulation testing equipment, the main unit housing 1 needs to be adjusted for height, horizontal movement, and horizontal rotation to enhance its versatility. Therefore, the horizontal drive mechanism 16 drives the horizontal screw 17 to move, thereby moving the horizontal moving plate 7. The lifting screw 6 of the lifting plate 5 is linked to the horizontal moving plate 7 during horizontal movement, enabling the lifting plate 5 to achieve horizontal movement adjustment. The height of the lifting screw 6 is adjusted by sequentially driving the drive motor 112, the drive sprocket 11, the chain 10, the driven sprocket 9, the lifting screw 6, and the threaded sleeve 8, thus completing the height adjustment of the lifting plate 5. Horizontal rotation adjustment is achieved by swinging the swing seat 18 relative to the lifting plate 5. The swing seat 18 is supported by the lifting plate 5, and the main unit housing 1 is supported by the swing seat 18. This constitutes the prerequisite for adjusting the various positions of the main unit 1.

[0058] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A transmission simulation testing device, characterized in that, include: A main unit (1) is used to drive the gearbox. A buffer block (2) is provided inside the main unit (1). The buffer block (2) is connected to the output shaft (3) of the main unit. The output shaft (3) of the main unit is used to drive the gearbox. A synchronous motor (4) is provided, the output shaft of which is connected to the buffer block (2), and the output shaft of the synchronous motor (4) is coaxially arranged with the output shaft (3) of the main unit. The lifting plate (5) is located directly below the main unit box (1) and supports the main unit box (1); the bottom of the lifting plate (5) is connected to multiple lifting screws (6); A horizontally movable plate (7) has multiple vertical through holes, in which threaded sleeves (8) are movably fitted. Each of the lifting screws (6) is threadedly connected to one of the threaded sleeves (8) in a corresponding manner. A driven sprocket (9) is fixed to the side wall of the threaded sleeve (8). Multiple driven sprockets (9) are sequentially wound around each other by a chain (10). The chain (10) is connected to a driving sprocket (11). The driving sprocket (11) is driven by a drive motor (112). The drive motor (112) can rotate in both directions. A slider (12) is provided at the bottom of the horizontally movable plate (7). A support block (13) is fixed at the bottom of the horizontally movable plate (7). The support block (13) has threaded through holes. A fixed frame (14) is provided with a slide rail (15) on its top, and the slider (12) is movably engaged with the slide rail (15); the fixed frame (14) is equipped with a horizontal drive mechanism (16), and the horizontal drive mechanism (16) drives and connects to a horizontal screw (17), and the horizontal screw (17) is threadedly connected to the threaded through hole of the support block (13); The gearbox simulation testing equipment also includes a swing seat (18), which is sandwiched between the lifting plate (5) and the main unit (1), and is supported by the lifting plate (5) and supports the main unit (1); The lifting plate (5) is fixed with a stationary sun gear (19), which is placed horizontally. The swing seat (18) is pivotally connected to the sun gear (19) through a first pivot shaft. The axis of the first pivot shaft is collinear with the axis of the sun gear (19). The swing seat (18) is connected to a planetary gear (20) through a second pivot shaft. The planetary gear (20) meshes with the sun gear (19). The line connecting the starting tooth of the sun gear (19) to the axis of the sun gear is the first line segment, and the line connecting the ending tooth of the sun gear (19) to the axis of the sun gear is the second line segment. There are continuous teeth between the starting tooth and the ending tooth. The included angle between the first line segment and the second line segment is 90°. The main unit chassis (1) includes a chassis (30), a vertical rotating support frame (31), a mounting plate (32), and a second clamping mechanism (33); the outer wall of the chassis (30) is provided with a boss (34), and the chassis (30) has a horizontal through hole (35), which penetrates the boss (34) from the inner wall of the chassis (30) toward the boss (34); the output shaft (3) of the main unit chassis extends out of the chassis (30) along the horizontal through hole (35); the boss (34) has a ring surrounding the horizontal through hole (35). The vertical rotating support frame (31) has an annular groove (36) coaxial with the horizontal through hole (35), and a sleeve hole (37) that movably engages with the annular groove (36); the vertical rotating support frame (31) is fixedly connected with multiple spaced and parallel insertion rods (38); the mounting plate (32) has multiple distributed second positioning holes (39); the insertion rods (38) are used to insert into the second positioning holes (39); the second clamping mechanism (33) is used to lock the vertical rotating support frame (31) onto the housing (30); The second clamping mechanism (33) includes a second prying shaft (40) and a second lever (41) pivotally connected to the second prying shaft (40). One end of the second lever (41) is connected to a second positioning pin (42). The housing (30) has a clearance hole (43). The two ends of the clearance hole (43) are respectively connected to the interior of the housing (30) and the annular groove (36). The second positioning pin (42) is movably inserted into the clearance hole (43). The vertical rotating support frame (31) has a plurality of third positioning holes (44). The plurality of third positioning holes (44) are distributed at intervals around the axis of the annular groove (36). The second lever (41) is connected to a second compression spring (45). The second compression spring (45) is used to drive the second positioning pin (42) to press against the third positioning hole (44).

2. The gearbox simulation testing equipment as described in claim 1, characterized in that, The lifting plate (5) has at least two first positioning holes (21), and the distance between the two first positioning holes (21) and the sun gear (19) is equal. The swing seat (18) is connected to a first positioning pin (22) corresponding to the first positioning hole (21). When the planetary gear (20) contacts the starting gear tooth, the first positioning pin (22) corresponds to one of the first positioning holes (21). When the planetary gear (20) contacts the ending gear tooth, the first positioning pin (22) corresponds to the other first positioning hole (21).

3. The gearbox simulation testing equipment as described in claim 2, characterized in that, The gearbox simulation testing equipment further includes a first clamping mechanism (23), which includes a first pry bar (24) and a first lever (25) pivotally connected to the first pry bar (24). One end of the first lever (25) is driven to be connected to the first positioning pin (22). The first lever (25) is connected to a first compression spring (26), which is used to drive the first positioning pin (22) to press against the first positioning hole (21).

4. The gearbox simulation testing equipment as described in claim 1, characterized in that, The horizontal drive mechanism (16) includes a vertical motor (27) and a reducer (28) driven by the vertical motor (27). The horizontal screw (17) is connected to the reducer (28) in a transmission manner. The fixed frame (14) is fixedly connected to the vertical motor (27) through a crossbeam (29).

5. The gearbox simulation testing equipment as described in claim 1, characterized in that, The buffer block (2) is made of rubber.

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