A gear box assembly device and a method of assembling the same

Abstract

This invention discloses a gearbox assembly device and its assembly method, comprising: a base, and a fixed position and an assembly position mounted on the base; the assembly position includes: an adjusting component, comprising an adjusting mounting bracket mounted on the base, an extending slide mounted on the adjusting mounting bracket, a transverse slide connected to the extending slide, and a lifting slide connected to the transverse slide; a flipping component, comprising a flipping cylinder connected to the lifting slide, a flipping shaft disposed at the output end of the flipping cylinder, and a flipping frame disposed at the end of the flipping shaft; by designing the flipping component, the gear clamping component and the gear shaft clamping component are integrated together, reducing the space required for assembly. The gear clamping component is mounted at one end of the flipping frame for clamping the gear; the gear shaft clamping component is mounted at the other end of the flipping frame for clamping the gear shaft.

Description

Technical Field

[0001] This invention relates to the field of assembly, specifically a gearbox assembly device and assembly method. Background Technology

[0002] Gearboxes have a wide range of applications, such as in wind turbine generators. They are a crucial mechanical component widely used in wind turbine generators. Their main function is to transmit the power generated by the wind turbine under wind force to the generator, enabling it to achieve the corresponding rotational speed.

[0003] Currently, gearbox assembly is all done manually. During manual assembly, gears and gear shafts need to be installed into the gearbox. However, due to manual assembly, the efficiency of installing gears and gear shafts into the gearbox is low. Furthermore, external force such as hammering is required to ensure that the gears and gear shafts are installed in the correct positions. However, such methods can easily cause varying degrees of damage to the gears and gear shafts. Summary of the Invention

[0004] Objective of the invention: To provide a gearbox assembly device and assembly method thereon to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: A gearbox assembly device, comprising:

[0006] A base, and a fixing position and an assembly position mounted on the base;

[0007] The assembly position includes:

[0008] The adjusting component includes an adjusting mounting bracket mounted on the base, an extension slide provided on the adjusting mounting bracket, a transverse slide connected to the extension slide, and a lifting slide connected to the transverse slide.

[0009] The tilting component includes a tilting cylinder connected to the lifting slide, a tilting shaft disposed at the output end of the tilting cylinder, and a tilting frame disposed at the end of the tilting shaft.

[0010] By designing a flip-up component, the gear clamping component and the gear shaft clamping component are integrated together, reducing the space required for assembly.

[0011] A gear clamping component is installed at one end of the flipping frame for clamping gears;

[0012] A gear shaft clamping component is installed at the other end of the flipping frame for clamping the gear shaft;

[0013] This invention completes the clamping of gears and gear shafts by designing gear clamping components and gear shaft clamping components. Then, the position is adjusted by the adjusting component, and the gear shaft and gear are installed into the gearbox. Through the mechanical pressure of the adjusting component, the gear and gear shaft are directly installed into the corresponding position. Compared with the traditional manual assembly method, the adjusting component adjusts and applies pressure, replacing the traditional hammering method, thus avoiding damage to the gears and gear shafts from hammering.

[0014] Meanwhile, the semi-automated assembly method greatly improves assembly efficiency.

[0015] In a further embodiment, the extending slider, the lateral sliding slider, and the lifting slider are sliding units with the same structure;

[0016] The sliding unit includes a sliding frame, a sliding motor mounted on the end of the sliding frame, a sliding shaft disposed at the output end of the sliding motor, a sliding lead screw connected to the sliding shaft, and a sliding plate sleeved on the sliding lead screw and slidably connected to the sliding frame.

[0017] The sliding frame of the extension slide is connected to the adjustment mounting frame;

[0018] The sliding frame of the lateral sliding member is connected to the sliding plate of the extension sliding member;

[0019] The sliding frame of the lifting slide is connected to the sliding plate of the extension slide;

[0020] The tilting cylinder is connected to the sliding plate of the lifting slide;

[0021] When the sliding unit is working, the sliding motor drives the sliding shaft to rotate, which causes the sliding screw to rotate, thereby driving the slide plate to slide along the sliding frame.

[0022] In a further embodiment, the gear clamping member includes:

[0023] A gear-clamping cylinder is connected to a tilting frame, and a gear-clamping telescopic rod is provided on the periphery of the gear-clamping cylinder;

[0024] The gear clamping arm, connected to the gear clamping telescopic rod, is used to engage with the gear tooth groove;

[0025] A gear rotary cylinder is located at the bottom of a gear clamping cylinder, and a gear rotary shaft is provided at the output end of the gear rotary cylinder;

[0026] The outer support clamp is connected to the gear rotation shaft and is used to hold the inner ring of the gear.

[0027] By designing a gear clamping arm that engages with the gear tooth groove to prevent damage to the tooth groove, and by designing an external support clamping component to apply pressure to the inner ring of the gear for positioning, the positioning of the gear becomes more stable.

[0028] Meanwhile, when the gear is installed into the gear shaft, the inner ring of the gear has a groove that matches the gear shaft. The groove needs to be aligned with the gear shaft before it can be installed. By designing a gear rotating cylinder to drive the gear to rotate, the groove is aligned, and the assembly is completed.

[0029] In a further embodiment, the external support clamp includes:

[0030] An external support cylinder is connected to the gear rotating shaft, and external support telescopic rods are provided on both sides of the external support cylinder;

[0031] The outer support block has a predetermined curvature at its edge and is connected to the outer support telescopic rod.

[0032] In a further embodiment, the gear shaft clamping member includes:

[0033] Gear shaft clamping frame, connected to the tilting frame;

[0034] The gear shaft clamping unit is designed in three sets and connected to the gear shaft clamping frame;

[0035] Each set of gear shaft clamping units includes:

[0036] A gear shaft clamping movable frame is sleeved on a gear shaft clamping frame. One end of the gear shaft clamping movable frame is provided with a gear shaft clamping rotating shaft. A gear shaft clamping wheel is provided on the gear shaft clamping rotating shaft. A clamping wheel motor is provided on the clamping movable frame. The output shaft of the clamping wheel motor is connected to the gear shaft clamping rotating shaft.

[0037] A gear shaft clamping cylinder is installed inside the gear shaft clamping frame. The output end of the gear shaft clamping cylinder is provided with a gear shaft clamping telescopic rod that is connected to the other end of the gear shaft clamping movable frame.

[0038] The gear shaft is positioned by designing a gear shaft clamping unit and using a three-point positioning method, which makes the positioning more stable. Since the gear shaft has a slot, the position of the slot needs to be adjusted when it is installed into the gearbox. Therefore, a clamping wheel motor is designed to drive the gear shaft clamping wheel to rotate, thereby causing the gear shaft to rotate and completing the assembly adjustment.

[0039] In a further embodiment, the fixed position includes:

[0040] The enclosure is mounted on the base.

[0041] A box-shaped swing frame is hinged to a box-shaped fixed frame. A box-shaped swing shaft is provided at the hinge. The box-shaped swing shaft is fixedly connected to the box-shaped swing frame and is hinged to the box-shaped fixed frame.

[0042] The gearbox clamp, mounted on the gearbox swing frame, is used to hold the gearbox in place. It is existing technology and can be selected from a variety of clamps depending on the site conditions.

[0043] The limiting component is connected to the swing shaft of the housing.

[0044] In a further embodiment, the limiting member includes:

[0045] A limit cylinder is connected to the housing fixing frame, and the output end of the limit cylinder is provided with a limit telescopic rod.

[0046] The limiting hinge frame is hinged to the limiting telescopic rod;

[0047] The limiting block is movably connected to the housing fixing frame and hinged to the limiting hinge frame;

[0048] The limiting ratchet is sleeved on the swing shaft of the housing and abuts against the limiting block.

[0049] A gearbox assembly method, comprising:

[0050] Step 1: Place the gearbox on the fixed position and fix the gearbox in place. The assembly worker places the gearbox on the gearbox swing frame and fixes the gearbox in place using the gearbox clamp.

[0051] Step 2: The gear shaft clamping component clamps the gear shaft. The gear shaft clamping unit completes the three-point clamping of the gear shaft. The gear shaft clamping cylinder drives the gear shaft clamping telescopic rod to move, so that the gear shaft clamping movable frame moves on the gear shaft clamping frame, thereby driving the gear shaft clamping wheel to abut against the gear shaft, completing the clamping work.

[0052] Step 3: After the gear shaft is clamped, assemble the gear shaft into the gearbox. During assembly, adjust the position of the gear shaft using the adjusting component, and drive the gear shaft clamping shaft to rotate using the clamping wheel motor. This causes the gear shaft clamping wheel to rotate, which in turn causes the clamped gear shaft to rotate, allowing the gear shaft to be installed into the gearbox.

[0053] Step 4: After the gear shaft is assembled, the flipping component drives the gear shaft clamping component and the gear clamping component to change positions. The flipping cylinder drives the flipping shaft to rotate, so that the flipping frame can be flipped, thereby changing the positions of the gear shaft clamping component and the gear clamping component.

[0054] Step 5: After the gear shaft clamping component and the gear clamping component change positions, the gear clamping component clamps the gear. The gear clamping cylinder drives the gear clamping arm to close together and lock into the gear tooth groove. Then, the outer support cylinder drives the outer support block to move away, so that the outer support block abuts against the inner wall of the gear's inner ring, completing the clamping of the inner support and outer clamping.

[0055] Step 6: After the gear is clamped, assemble the gear into the gear shaft of the gearbox. During assembly, adjust the position of the gear using the adjusting component, and drive the external support cylinder to rotate by the gear rotating cylinder, thereby causing the gear to rotate and allowing it to be assembled into the gear shaft.

[0056] Step 7: After the gear shaft and gears are assembled, the assembly worker can swing the gearbox swing frame to change the orientation of the gearbox and check the assembly effect. When checking the assembly effect, the limit cylinder drives the limit telescopic rod to move, so that the limit hinge frame drives the limit block to abut against the limit ratchet, completing the limit work of the gearbox swing frame, thereby completing the positioning of the gearbox swing frame and preventing it from swinging during inspection.

[0057] The feeding of gear shafts and gears can be accomplished by a conveyor belt. Two conveyor belts can be designed on the side of the base to transport the gear shafts and gears. Limiting frames can be installed on both sides of the conveyor belt to prevent the gear shafts from tilting. This feeding method is existing technology and can be selected according to the actual situation.

[0058] Beneficial effects: This invention discloses a gearbox assembly device and its assembly method. The invention completes the clamping work of gears and gear shafts by designing gear clamping parts and gear shaft clamping parts, and then the position is adjusted by adjusting parts to install gear shafts and gears into the gearbox. Through the mechanical pressure of adjusting parts, the gears and gear shafts are directly installed into the corresponding positions. Compared with the traditional manual assembly method, the adjustment and pressure of adjusting parts replaces the traditional hammering method, avoiding damage to gears and gear shafts from hammering.

[0059] Meanwhile, the semi-automated assembly method greatly improves assembly efficiency. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the structure of the present invention.

[0061] Figure 2 This is a schematic diagram of the assembly position of the present invention.

[0062] Figure 3 This is a schematic diagram of the fixed position of the present invention.

[0063] Figure 4 This is a schematic diagram of the adjusting component of the present invention.

[0064] Figure 5 This is a schematic diagram of the gear shaft clamping component of the present invention.

[0065] Figure 6 This is a schematic diagram of the gear clamping component of the present invention.

[0066] Figure 7 This is a schematic diagram of the external support clamping component of the present invention.

[0067] Figure 8 This is a schematic diagram of the limiting component of the present invention.

[0068] The attached figures are labeled as follows:

[0069] 1. Base; 2. Assembly position;

[0070] 21. Adjustment component; 211. Adjustment mounting bracket; 212. Extension slide; 213. Lateral slide; 214. Lifting slide;

[0071] 22. Flip-over component;

[0072] 23. Gear clamping component; 231. Gear clamping cylinder; 232. Gear clamping telescopic rod; 233. Gear clamping arm; 234. Gear rotating cylinder; 235. External support clamping component; 235A. External support block; 235B. External support cylinder; 235C. External support telescopic rod;

[0073] 24. Gear shaft clamping component; 241. Gear shaft clamping frame; 242. Gear shaft clamping movable frame; 243. Gear shaft clamping rotating shaft; 244. Gear shaft clamping wheel; 245. Gear shaft clamping telescopic rod;

[0074] 3. Fixed position; 31. Box fixing frame; 32. Box swing frame; 33. Box clamp; 34. Box swing shaft; 35. Limiting block; 36. Limiting hinge frame; 37. Limiting telescopic rod; 38. Limiting cylinder; 39. Limiting ratchet. Detailed Implementation

[0075] This application relates to a gearbox assembly device and assembly method thereof, which will be explained in detail below through specific embodiments.

[0076] A gearbox assembly device, comprising:

[0077] Base 1, and fixing position 3 and assembly position 2 installed on the base 1;

[0078] The assembly station 2 includes:

[0079] The adjusting component 21 includes an adjusting mounting bracket 211 mounted on the base 1, an extension slide 212 disposed on the adjusting mounting bracket 211, a transverse slide 213 connected to the extension slide 212, and a lifting slide 214 connected to the transverse slide 213.

[0080] The flipping component 22 includes a flipping cylinder connected to the lifting slide 214, a flipping shaft disposed at the output end of the flipping cylinder, and a flipping frame disposed at the end of the flipping shaft.

[0081] By designing the flipper 22, the gear clamping part 23 and the gear shaft clamping part 24 are integrated together, reducing the space required for assembly.

[0082] Gear clamping member 23 is installed at one end of the flipping frame and is used to clamp the gear;

[0083] A gear shaft clamping member 24 is installed at the other end of the flipping frame for clamping the gear shaft;

[0084] This invention completes the clamping of gears and gear shafts by designing gear clamping component 23 and gear shaft clamping component 24, and then the position is adjusted by adjusting component 21 to install gear shafts and gears into gearbox. Through the mechanical pressure of adjusting component 21, gears and gear shafts are directly installed into the corresponding positions. Compared with the traditional manual assembly method, adjusting component 21 adjusts and applies pressure to replace the traditional hammering method, avoiding damage to gears and gear shafts from hammering.

[0085] Meanwhile, the semi-automated assembly method greatly improves assembly efficiency.

[0086] The extension slide 212, the transverse slide 213 and the lifting slide 214 are sliding units with the same structure;

[0087] The sliding unit includes a sliding frame, a sliding motor mounted on the end of the sliding frame, a sliding shaft disposed at the output end of the sliding motor, a sliding lead screw connected to the sliding shaft, and a sliding plate sleeved on the sliding lead screw and slidably connected to the sliding frame.

[0088] The sliding frame of the extension slide 212 is connected to the adjustment mounting frame 211;

[0089] The sliding frame of the transverse sliding member 213 is connected to the sliding plate of the extension sliding member 212;

[0090] The sliding frame of the lifting slide 214 is connected to the sliding plate of the extension slide 212;

[0091] The tilting cylinder is connected to the sliding plate of the lifting slide 214;

[0092] When the sliding unit is working, the sliding motor drives the sliding shaft to rotate, which causes the sliding screw to rotate, thereby driving the slide plate to slide along the sliding frame.

[0093] The gear clamping member 23 includes:

[0094] A gear clamping cylinder 231 is connected to a tilting frame, and a gear clamping telescopic rod 232 is provided on the periphery of the gear clamping cylinder 231.

[0095] The gear clamping arm 233 is connected to the gear clamping telescopic rod 232 and is used to engage with the gear tooth groove;

[0096] A gear rotary cylinder 234 is located at the bottom of the gear clamping cylinder 231, and a gear rotary shaft is provided at the output end of the gear rotary cylinder 234.

[0097] The outer support clamp 235 is connected to the gear rotating shaft and is used to hold the inner ring of the gear.

[0098] By designing the gear clamping arm 233 to engage with the gear tooth groove, damage to the tooth groove is avoided. At the same time, by designing the external support clamping part 235 to apply pressure to the inner ring of the gear for positioning, the positioning of the gear is more stable.

[0099] Meanwhile, when the gear is installed into the gear shaft, the inner ring of the gear has a groove that matches the gear shaft. The groove needs to be aligned with the gear shaft before it can be installed. The gear rotating cylinder 234 is designed to drive the gear to rotate, so that the groove aligns and the assembly is completed.

[0100] The external support clamping member 235 includes:

[0101] An external support cylinder 235B is connected to the gear rotating shaft, and external support telescopic rods 235C are provided on both sides of the external support cylinder 235B.

[0102] The outer support block 235A has a predetermined curvature on its edge and is connected to the outer support telescopic rod 235C.

[0103] The gear shaft clamping member 24 includes:

[0104] The gear shaft clamp 241 is connected to the tilting frame;

[0105] The gear shaft clamping unit is designed in three sets and connected to the gear shaft clamping frame 241;

[0106] Each set of gear shaft clamping units includes:

[0107] A gear shaft clamping movable frame 242 is sleeved on a gear shaft clamping frame 241. One end of the gear shaft clamping movable frame 242 is provided with a gear shaft clamping rotating shaft 243. A gear shaft clamping wheel 244 is provided on the gear shaft clamping rotating shaft 243. A clamping wheel motor is provided on the clamping movable frame. The output shaft of the clamping wheel motor is connected to the gear shaft clamping rotating shaft 243.

[0108] A gear shaft clamping cylinder is installed inside the gear shaft clamping frame 241. The output end of the gear shaft clamping cylinder is provided with a gear shaft clamping telescopic rod 245 connected to the other end of the gear shaft clamping movable frame 242.

[0109] The gear shaft is positioned by designing a gear shaft clamping unit and using a three-point positioning method, which makes the positioning more stable. Since the gear shaft has a slot, the position of the slot needs to be adjusted when it is installed into the gearbox. Therefore, a clamping wheel motor is designed to drive the gear shaft clamping wheel 244 to rotate, thereby causing the gear shaft to rotate and completing the assembly adjustment.

[0110] The fixed position 3 includes:

[0111] The housing mounting bracket 31 is installed on the base 1;

[0112] The box swing frame 32 is hinged to the box fixing frame 31. A box swing shaft 34 is provided at the hinge. The box swing shaft 34 is fixedly connected to the box swing frame 32 and hinged to the box fixing frame 31.

[0113] The gearbox clamp 33 is mounted on the gearbox swing frame 32 and is used to hold the gearbox in place. It is existing technology and can be selected from a variety of clamps according to the site conditions.

[0114] The limiting component is connected to the swing shaft 34 of the housing.

[0115] The limiting component includes:

[0116] A limiting cylinder 38 is connected to a housing fixing frame 31, and a limiting telescopic rod 37 is provided at the output end of the limiting cylinder 38.

[0117] The limiting hinge frame 36 is hinged to the limiting telescopic rod 37;

[0118] The limiting block 35 is movably connected to the box fixing frame 31 and hinged to the limiting hinge frame 36;

[0119] The limiting ratchet 39 is sleeved on the swing shaft 34 of the housing and abuts against the limiting block 35.

[0120] Working principle description: The gearbox is placed on the fixed position 3 and fixed by the fixed position 3. The assembly worker places the gearbox on the gearbox swing frame 32 and completes the fixing of the gearbox by the gearbox clamp 33.

[0121] The gear shaft clamping member 24 clamps the gear shaft, and the gear shaft clamping unit completes the three-point clamping of the gear shaft. The gear shaft clamping cylinder drives the gear shaft clamping telescopic rod 245 to move, so that the gear shaft clamping movable frame 242 moves on the gear shaft clamping frame 241, thereby driving the gear shaft clamping wheel 244 to abut against the gear shaft and complete the clamping work.

[0122] After the gear shaft is clamped, it is assembled into the gearbox. During assembly, the position of the gear shaft is adjusted by the adjusting component 21, and the clamping wheel motor drives the gear shaft clamping shaft 243 to rotate, which causes the gear shaft clamping wheel 244 to rotate, thereby causing the clamped gear shaft to rotate, so that the gear shaft can be installed into the gearbox.

[0123] After the gear shaft is assembled, the flipping component 22 drives the gear shaft clamping component 24 and the gear clamping component 23 to change positions. The flipping cylinder drives the flipping shaft to rotate, so that the flipping frame completes the flipping, thereby changing the positions of the gear shaft clamping component 24 and the gear clamping component 23.

[0124] After the gear shaft clamping member 24 and the gear clamping member 23 change positions, the gear clamping member 23 clamps the gear. The gear clamping cylinder 231 drives the gear clamping arm 233 to close together and be inserted into the gear tooth groove. Then, the outer support cylinder 235B drives the outer support block 235A to move away, so that the outer support block 235A abuts against the inner wall of the gear inner ring, completing the clamping of the inner support and outer clamp.

[0125] After the gear is clamped, the gear is assembled into the gear shaft of the gearbox. During assembly, the gear position is adjusted by the adjusting component 21, and the gear rotating cylinder 234 drives the outer support cylinder 235B to rotate, thereby causing the gear to rotate and allowing the gear to be assembled into the gear shaft.

[0126] After the gear shaft and gears are assembled, the assembly worker can swing the gearbox swing frame 32 to change the orientation of the gearbox and check the assembly effect. When checking the assembly effect, the limit cylinder 38 drives the limit telescopic rod 37 to move, so that the limit hinge frame 36 drives the limit block 35 to abut against the limit ratchet 39, completing the limit work of the gearbox swing frame 32, thereby completing the positioning of the gearbox swing frame 32 and preventing it from swinging during inspection.

[0127] The feeding of the gear shaft and gear can be completed by the conveyor belt. Two conveyor belts are designed on the side of the base 1 to transport the gear shaft and gear. Limiting frames can be installed on both sides of the conveyor belt to prevent the gear shaft from tilting. This feeding method is existing technology and can be selected according to the actual situation.

[0128] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A gear box assembly device, comprising: a base (1), and a fixing position (3) and an assembly position (2) mounted on the base (1); characterized in that the assembly position (2) comprises: a positioning member (21) comprising a positioning mounting frame (211) mounted on the base (1), an extension slide (212) provided on the positioning mounting frame (211), a transverse slide (213) connected with the extension slide (212), and a lifting slide (214) connected with the transverse slide (213); a turnover member (22) comprising a turnover cylinder connected with the lifting slide (214), a turnover shaft provided at an output end of the turnover cylinder, and a turnover frame provided at an end of the turnover shaft; a gear clamping member (23) mounted at one end of the turnover frame for clamping a gear; a pinion shaft clamping member (24) mounted at the other end of the turnover frame for clamping a pinion shaft; the gear clamping member (23) comprises a gear clamping cylinder (231) connected with the turnover frame, a gear clamping telescopic rod (232) provided on a peripheral portion of the gear clamping cylinder (231); a gear clamping arm (233) connected with the gear clamping telescopic rod (232); a gear rotating cylinder (234) provided at a bottom of the gear clamping cylinder (231), an output end of the gear rotating cylinder (234) being provided with a gear rotating shaft; an outer support clamping member (235) connected with the gear rotating shaft; the pinion shaft clamping member (24) comprises a pinion shaft clamping frame (241) connected with the turnover frame; three pinion shaft clamping units are designed and connected with the pinion shaft clamping frame (241); each pinion shaft clamping unit comprises: a pinion shaft clamping movable frame (242) sleeved on the pinion shaft clamping frame (241), one end of the pinion shaft clamping movable frame (242) being provided with a pinion shaft clamping rotating shaft (243), the pinion shaft clamping rotating shaft (243) being provided with a pinion shaft clamping wheel (244), a clamping wheel motor being provided on the pinion shaft clamping movable frame, an output shaft of the clamping wheel motor being connected with the pinion shaft clamping rotating shaft (243); a pinion shaft clamping cylinder provided in the pinion shaft clamping frame (241), an output end of the pinion shaft clamping cylinder being provided with a pinion shaft clamping telescopic rod (245) connected with the other end of the pinion shaft clamping movable frame (242).

2. A gearbox assembly according to claim 1, characterised in that: the extension slide (212), the transverse slide (213) and the lifting slide (214) are sliding units with the same structure; the sliding unit comprises a sliding frame, a sliding motor mounted at an end of the sliding frame, a sliding shaft provided at an output end of the sliding motor, a sliding lead screw connected with the sliding shaft, and a sliding plate sleeved on the sliding lead screw and in sliding connection with the sliding frame.

3. A gear box assembly as claimed in claim 1, wherein: the outer support clamping member (235) comprises: an outer support cylinder (235B) connected with the gear rotating shaft, outer support telescopic rods (235C) provided at both sides of the outer support cylinder (235B); an outer support block (235A) with a predetermined curvature at an edge, the outer support block (235A) being connected with the outer support telescopic rods (235C).

4. A gear box assembly as claimed in claim 1, wherein: the fixing position (3) comprises: a box body fixing frame (31) mounted on the base (1). The box swing frame (32) is hinged with the box fixing frame (31), and a box swing shaft (34) is arranged at the hinge position. The box swing shaft (34) is fixedly connected with the box swing frame (32), and the box swing shaft (34) is hinged with the box fixing frame (31); The box clamp (33) is installed on the box swing frame (32) and used for abutting against the gear box; The limiting member is connected with the box swing shaft (34).

5. A gear box assembly according to claim 4, wherein: The limiting member comprises: The limiting cylinder (38) is connected with the box fixing frame (31), and the output end of the limiting cylinder (38) is provided with a limiting telescopic rod (37); The limiting hinge frame (36) is hinged with the limiting telescopic rod (37); The limiting abutting block (35) is movably connected with the box fixing frame (31) and hinged with the limiting hinge frame (36); The limiting ratchet wheel (39) is sleeved on the box swing shaft (34) and abuts against the limiting abutting block (35).

6. A method of assembling a gearbox based on the gearbox assembly apparatus of claim 4, characterized in that, It comprises: Step 1, the gear box is placed on the fixed position (3), the gear box is fixed through the fixed position (3), the assembly worker places the gear box on the box swing frame (32), and the gear box is fixed through the box clamp (33); Step 2, the pinion shaft clamping part (24) clamps the pinion shaft, three-point clamping of the pinion shaft is completed through the pinion shaft clamping unit, the pinion shaft clamping movable frame (242) moves on the pinion shaft clamping frame (241) through the pinion shaft clamping cylinder driving the pinion shaft clamping telescopic rod (245) to move, and then the pinion shaft clamping wheel (244) abuts against the pinion shaft to complete the clamping work; Step 3, after the pinion shaft clamping is completed, the pinion shaft is assembled into the gear box, during assembly, the position of the pinion shaft is adjusted through the adjusting part (21), and the pinion shaft clamping shaft (243) is rotated by the clamping wheel motor, so that the pinion shaft clamping wheel (244) rotates, and then the clamped pinion shaft rotates, so that the pinion shaft can be assembled into the gear box; Step 4, after the pinion shaft assembly is completed, the pinion shaft clamping part (24) and the gear clamping part (23) are switched positions by the turnover part (22), the turnover shaft is rotated by the turnover cylinder, so that the turnover frame completes the turnover, and then the pinion shaft clamping part (24) and the gear clamping part (23) are switched positions; Step 5, after the pinion shaft clamping part (24) and the gear clamping part (23) are switched positions, the gear is clamped by the gear clamping part (23), the gear clamping arms (233) are brought together by the gear clamping cylinder (231), and then the outer supporting block (235A) is driven away by the outer supporting cylinder (235B), so that the outer supporting block (235A) abuts against the inner wall of the inner ring of the gear, and the clamping of the inner supporting and the outer clamping is completed; Step 6, after the gear clamping is completed, the gear is assembled into the pinion shaft of the gear box, during assembly, the position of the gear is adjusted through the adjusting part (21), and the outer supporting cylinder (235B) is rotated by the gear rotating cylinder (234), so that the gear rotates, and then the gear can be assembled into the pinion shaft; Step 7, after the assembly of the pinion and gear is completed, the assembly worker can swing the box swing frame (32), so that the box swing frame (32) swings, changes the orientation of the gear box, checks the assembly effect, when checking the assembly effect, the limiting telescopic rod (37) is driven to move by the limiting cylinder (38), so that the limiting hinge frame (36) drives the limiting abutting block (35) to abut against the limiting ratchet (39), the limiting work of the box swing frame (32) is completed, and the positioning of the box swing frame (32) is completed, so that swinging does not occur when checking.

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