A wind power output gear shaft heat treatment device and method

Abstract

The present invention relates to the field of output gear shaft processing technology, specifically a wind power output gear shaft heat treatment device and method, including a cantilever beam, a suspension mechanism, a stabilizing part and a locking part. In the present invention, the cantilever beam is guided to drive the gear shaft to move down into the pool through the cooperation between the guide block and the corresponding guide seat, which facilitates the gear shaft to enter and exit the cooling pool and the quenching pool. Secondly, the locking operation of the locking part forms two stable triangular frames on the left and right sides of the gear shaft, which improves the stability of the gear shaft during movement and cooling in the cooling pool, reduces shaking and reduces safety hazards. In the process of entering the quenching pool, the stable triangular frame is first locked by the stabilizing frame, and then unlocked to avoid the high-temperature heat treatment process, while exposing the gear shaft to the maximum area, improving the movement stability while ensuring that the heat treatment effect meets the requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of output gear shaft processing, and in particular to a device and method for heat treatment of a wind power output gear shaft. Background Art

[0002] The wind power output gear shaft is one of the key components in a wind turbine generator set, mainly used to transmit mechanical energy. The output gear shaft mainly has two design methods: integrated design (the gear and shaft are designed as a whole) and separated design (the gear and shaft are manufactured separately). During the design and manufacturing process, in order to improve the overall hardness, strength and toughness, the gear shaft needs to be heat treated.

[0003] At present, when heat treatment is performed on an integrated gear shaft, a bridge crane is mainly used to lift and move the gear shaft into a quenching pool for heat treatment, and then into a cooling pool for cooling, thus completing the heat treatment operation. In the above process, a bridge crane is mainly used to lift the gear shaft in conjunction with an existing hook, and the gear shaft is driven to move into the quenching pool or cooling pool for heat treatment or cooling.

[0004] The following problems exist in the above-mentioned heat treatment process: in the process of moving into the quenching pool and the cooling pool, the shaking generated during the movement affects the process of the gear shaft entering the pool, which is prone to the problem of gear shaft collision damage due to shaking, and at the same time increases the safety hazard of the overall operation process; secondly, when the gear shaft enters the cooling pool for cooling, the high-temperature workpiece is easily immersed in the cooling medium, causing local rapid evaporation of the medium to produce bubbles, and the cooling medium flows rapidly. The bubbles produced and the cooling medium flowing rapidly in the process affect the stability of the gear shaft in the pool. In summary, it is difficult to ensure the stability of the gear shaft during the overall heat treatment process by simply placing it on a hook. Summary of the Invention

[0005] Based on this, it is necessary to provide a wind power output gear shaft heat treatment device and method, aiming to solve the above-mentioned problems of the prior art.

[0006] The present application provides a heat treatment device for a wind power output gear shaft, which is arranged on a bridge crane and includes: a suspension beam, which is suspended on the bridge crane, and a suspension mechanism is provided on the suspension beam for suspending the gear shaft and guiding the gear shaft into and out of the quenching pool and the cooling pool. The suspension mechanism includes a suspension component, and the suspension component includes two left-right symmetrical crossbeams. A hook is rotatably provided below the crossbeam, and the gear shaft is suspended on the two hooks.

[0007] The upper end surface of the suspension beam is provided with a movable frame which slides up and down through a mounting rod, and guide blocks are fixedly provided on the left and right sides of the movable frame. The upper ends of the quenching pool and the cooling pool are provided with guide seats which match the guide blocks one by one, and the up and down movement of the gear shaft is guided by the cooperation between the guide blocks and the guide seats.

[0008] The suspension beam is provided with a stabilizing part, which includes two stabilizing frames. When the guide block is not coordinated with the guide seat, two stable triangular frames are formed between the stabilizing frames and the adjacent hooks. When the guide block is coordinated with the guide seat, the stabilizing frames rotate to avoid the high temperature environment while the guide seat guides the suspension beam downward.

[0009] The lower end surface of the movable frame is provided with a locking part. When the guide block is not matched with the guide seat, the locking part locks the triangular frame. After the guide block is matched with the guide seat, the locking part is unlocked.

[0010] According to a favorable embodiment, the opposing surfaces of the two guide seats opposite to each other on the left and right are provided with guide grooves that cooperate with the corresponding guide blocks. When the guide block moves downward and contacts the lower wall of the guide seat, the guide seat prevents the guide block and the movable frame from continuing to move downward, and the movable frame moves upward relative to the suspension beam. During this relative upward movement process, the locking part is unlocked and the stabilization frame is avoided.

[0011] According to a favorable embodiment, the length of the guide groove in the front-to-back direction is greater than the front-to-back length of the guide block, and the distance between the two guide grooves relative to each other on the left and right is greater than the distance between the two guide blocks. In order to reduce the impact caused by the inertia of the suspension beam and the gear shaft itself during the lifting and movement process, a U-shaped anti-collision pad is fixedly installed in the guide groove.

[0012] According to a favorable embodiment, the stabilization part also includes a rotating column, and a rotating column with an axis extending from left to right is rotatably provided on the suspension beam, and the stabilization frame is slidably sleeved on the rotating column left and right, and the upper ends of the two stabilization frames are respectively located on the left and right sides of the suspension beam, and two stabilization blocks distributed up and down are fixedly provided on the opposite surfaces of the lower ends of the two stabilization frames, and the opposite surfaces of the two stabilization blocks are fixedly provided with a clamping plate for clamping the hook, and a locking member for hooking the hook is fixedly provided on the upper clamping plate.

[0013] According to a favorable embodiment, the locking piece is U-shaped and its U-shaped opening faces the front side in the locked state. When the stabilization frame is in a vertical state, the left and right stabilization blocks press against the left and right sides of the gear shaft, and the pressing plate presses against the corresponding hook while the locking piece clamps the corresponding hook. The hook and the stabilization frame on the same side form a triangular frame.

[0014] According to a favorable embodiment, a plurality of mounting holes equidistantly arranged from left to right are provided on both ends of the rotating column, and an adjustment hole cooperating with the mounting hole is provided on the upper end of the stabilization frame, and the adjustment hole and the corresponding mounting hole are locked by bolts.

[0015] According to a favorable embodiment, the locking portion includes a plug-in hole, and the upper end surface of the suspension beam is provided with a groove group corresponding to the hook one by one, and the groove group includes two rows of plug-in holes equidistantly arranged from left to right in the front and rear rows. Two front-to-back symmetrical docking holes are provided through the crossbeam, and the lower end surface of the movable frame is fixedly provided with plug-in columns corresponding to the plug-in holes one by one, and the locking of the crossbeam is completed by passing the corresponding plug-in columns through the docking holes to the corresponding plug-in holes.

[0016] According to a favorable embodiment, two left-right symmetrical locking grooves are provided through the rotating column. When the stabilization frame is in a vertical state, the mounting holes face the front and rear sides, and the locking grooves face the upper and lower sides. The lower end surface of the movable frame is fixedly provided with locking columns corresponding to the locking grooves one by one. The rotating column is locked by inserting the locking columns into the corresponding locking grooves.

[0017] According to a favorable embodiment, the locking portion further comprises a steel cable, which is fixedly arranged between the rear side of the mobile frame and the rear side of the stabilization frame. When the stabilization frame is in a vertical state, the steel cable is in a naturally relaxed state and its excess part is lower than the connection point of the steel cable on the stabilization frame.

[0018] In summary, the present invention includes at least one of the following beneficial effects: First, in the present invention, the guide cantilever beam drives the gear shaft to move downward through the cooperation between the guide block and the corresponding guide seat, which facilitates the gear shaft to enter and exit the cooling pool and the quenching pool. Secondly, the locking operation of the locking part forms two stable triangular frames on the left and right sides of the gear shaft, which improves the stability of the gear shaft during the movement process and the cooling process in the cooling pool, reduces shaking and reduces safety hazards. In the process of entering the quenching pool, the stabilizing frame is first locked to form a stable triangular frame, and then unlocked to avoid the high-temperature heat treatment process. At the same time, the gear shaft is exposed to the maximum area, which improves the movement stability while ensuring that the heat treatment effect meets the requirements.

[0019] 2. In the present invention, the guide seat is used to prevent the movable frame from continuously moving downward. The adaptive control locking part is first unlocked, and then the stabilizing frame is rotated to the upper rear side to avoid, so that the left and right sides of the gear shaft are exposed, which is convenient for heat treatment. At the same time, the stabilizing frame rotates to avoid the high temperature environment deep in the quenching pool, thereby extending the service life of the stabilizing frame. There is no need to use the same high-temperature resistant material as the hook, which reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a wind power output gear shaft heat treatment device provided according to an embodiment of the present invention is shown.

[0022] Figure 2 A schematic diagram of the three-dimensional structure among the cantilever beam, the guide block and the guide seat provided according to an embodiment of the present invention is shown.

[0023] Figure 3 A front view of a cantilever beam, a movable frame and a stabilizing frame provided according to an embodiment of the present invention is shown.

[0024] Figure 4 A top view of the movable frame, the guide seat and the suspension beam provided according to an embodiment of the present invention is shown.

[0025] Figure 5 The embodiment of the present invention provides Figure 4 Enlarged view of point A in the middle.

[0026] Figure 6 A partial cross-sectional exploded view of the movable frame, the suspension beam and the stabilizing frame provided according to an embodiment of the present invention is shown.

[0027] Figure 7 A schematic diagram showing changes between a locked state and an unlocked state provided according to an embodiment of the present invention is shown.

[0028] Among them, the above-mentioned drawings include the following figure marks: 1. Suspension beam; 2. Suspension mechanism; 20. Crossbeam; 200. Hook; 21. Moving frame; 210. Guide block; 211. Guide seat; 212. Guide groove; 213. Anti-collision pad; 22. Stabilization part; 220. Stabilization frame; 221. Rotating column; 222. Stabilization block; 223. Clamping plate; 224. Locking piece; 225. Mounting hole; 226. Adjustment hole; 23. Locking part; 230. Plug-in hole; 231. Docking hole; 232. Plug-in column; 233. Locking groove; 234. Locking column; 235. Steel cable. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] like Figure 1 and Figure 2As shown, a heat treatment device for a wind power output gear shaft is provided on a bridge crane, comprising: a suspension beam 1, the suspension beam 1 being suspended on the bridge crane, a suspension mechanism 2 being provided on the suspension beam 1 for suspending the gear shaft and guiding the gear shaft into and out of the quenching pool and the cooling pool, the suspension mechanism 2 comprising a suspension component, the suspension component comprising two left-right symmetrical crossbeams 20, see Figure 6 After the crossbeam 20 is placed on the suspension beam 1, it is locked by the screw on the rear side. The crossbeam 20 can only move left and right. A hook 200 is provided for rotation below the crossbeam 20, and the gear shaft is suspended on two hooks 200.

[0031] like Figure 1 and Figure 2 As shown, a movable frame 21 is provided on the upper end surface of the suspension beam 1 for sliding up and down through a mounting rod, and guide blocks 210 are fixedly provided on the left and right sides of the movable frame 21. The upper ends of the quenching pool and the cooling pool are provided with guide seats 211 that match the guide blocks 210 one by one. The upward and downward movement process of the gear shaft is guided by the cooperation between the guide blocks 210 and the guide seats 211.

[0032] like Figure 1 、 Figure 2 and Figure 3 As shown, the suspension beam 1 is provided with a stabilizing portion 22, which includes stabilizing frames 220 located on the left and right sides of the gear shaft. When the guide block 210 is not in conjunction with the guide seat 211, the stabilizing frames 220 on the left and right sides respectively form two stable triangular frames with adjacent hooks 200. When the guide block 210 is in conjunction with the guide seat 211, the stabilizing frames 220 rotate to avoid the high temperature environment while the guide seat 211 guides the suspension beam 1 downward. The lower end surface of the movable frame 21 is provided with a locking portion 23. When the guide block 210 is not in conjunction with the guide seat 211, the locking portion 23 locks the triangular frame. After the guide block 210 and the guide seat 211 are fully engaged, the locking portion 23 is unlocked.

[0033] First, the mobile frame 21 is moved up and down by an external lifting device so that the locking part 23 is unlocked, that is, the stabilizing frame 220 is in a horizontal state. Then, the distance between the two hooks 200 is adjusted according to the size of the gear shaft to be heat treated, and the distance between the two stabilizing frames 220 is adjusted at the same time. Then, the gear shaft is hung on the two hooks 200 to complete the placement process of the gear shaft. The bridge crane drives the suspension beam 1, the hook 200 and the gear shaft to move to the quenching pool for heat treatment. In the process of moving to the top of the quenching pool, the mobile frame 21 moves down and resets, so that the stabilizing frame 220 is reset to a vertical state. Finally, the locking part 23 locks the stabilizing frame 220 and the hook 200, so that stable triangular frames are formed on both sides of the gear shaft.

[0034] In the process of the suspension beam 1 driving the gear shaft to move from the top to the quenching pool, the cooperation between the guide block 210 and the guide seat 211 guides the suspension beam 1 and the gear shaft to move downward into the quenching pool, thereby preventing the gear shaft from being damaged by shaking during the downward movement. When the guide block 210 and the guide seat 211 are fully cooperated, as the suspension beam 1 continues to move downward, the guide seat 211 hinders the downward movement of the movable frame 21, thereby unlocking the locking portion 23 and the stabilizing frame 220 rotating to a horizontal state. Figure 7 , so that the left and right sides of the gear shaft are exposed, which is convenient for heat treatment. At the same time, the stabilizing frame 220 rotates to avoid the high temperature environment deep in the quenching pool, extending the service life of the stabilizing frame 220. There is no need to use the same high-temperature resistant material as the hook 200, reducing costs.

[0035] After the heat treatment is completed, the bridge crane works to move the gear shaft upward, the suspension beam 1 gradually approaches the movable frame 21 and finally drives the movable frame 21 to continue to move upward, the locking part 23 resumes the locked state, and then the movable gear shaft enters the cooling pool for cooling. The locking process of the locking part 23 improves the stability of the gear shaft during the movement. Secondly, it should be noted that: the height of the guide seat 211 is controlled according to actual needs, so that in the process of the gear shaft being hoisted and moved from top to bottom to the cooling pool for cooling, when the guide block 210 moves down to complete the cooperation with the guide seat 211, the stabilizing frame 220 maintains a vertical state, that is, the hook 200 and the stabilizing frame 220 are still in a stable triangular frame. At this time, the gear shaft is immersed in the cooling medium for cooling. The triangular frame formed by locking improves the stability during cooling, and avoids the formation of bubbles due to local rapid evaporation of the cooling medium, which causes the overall shaking of the gear shaft and collision damage.

[0036] In summary, by locking the stabilizing frame 220 through the locking portion 23, the stability of the gear shaft is improved during the movement and cooling processes of the gear shaft.

[0037] like Figure 2 、 Figure 4 and Figure 5 As shown, the opposing surfaces of the two guide seats 211 opposite to each other are provided with guide grooves 212 that cooperate with the corresponding guide blocks 210. In order to facilitate the guide blocks 210 to enter the guide grooves 212, the upper ends of the inner walls of the guide grooves 212 are chamfered. When the guide blocks 210 move downward and contact the lower walls of the guide seats 211, the guide seats 211 prevent the guide blocks 210 and the movable frame 21 from continuing to move downward, and the movable frame 21 moves upward relative to the suspension beam 1. During this relative upward movement process, the locking portion 23 is unlocked and the stabilization frame 220 is avoided.

[0038] like Figure 4 and Figure 5As shown, the length of the guide groove 212 in the front-to-back direction is greater than the front-to-back length of the guide block 210, and the distance between the two guide grooves 212 relative to each other on the left and right is greater than the distance between the two guide blocks 210. In order to reduce the impact caused by the inertia of the suspension beam 1 and the gear shaft itself during the lifting and moving process, a U-shaped anti-collision pad 213 is fixedly provided in the guide groove 212.

[0039] During operation, when the suspension beam 1 drives the gear shaft from top to bottom into the quenching pool or cooling pool, as the suspension beam 1 continues to move downward, the guide block 210 enters the guide groove 212. Through the guiding effect of the guide grooves 212 on the left and right sides of the suspension beam 1, the suspension beam 1 is guided to drive the gear shaft to move from top to bottom. At the same time, the anti-collision pad 213 inside the guide groove 212 absorbs the shaking caused by inertia during the movement of the suspension beam 1, ensuring that the gear shaft can be accurately moved to the quenching pool or cooling pool, thereby improving the stability of the movement process.

[0040] like Figure 1 、 Figure 2 and Figure 3 As shown, the stabilizing part 22 also includes a rotating column 221, and a rotating column 221 with an axis extending from left to right is provided on the suspension beam 1. The stabilizing frame 220 is slidably sleeved on the rotating column 221 left and right. The upper ends of the two stabilizing frames 220 are respectively located on the left and right sides of the suspension beam 1, and the opposite surfaces of the lower ends of the two stabilizing frames 220 are fixedly provided with stabilizing blocks 222. In order to reduce the friction when the stabilizing blocks 222 contact with both sides of the gear shaft, the opposite surfaces of the two stabilizing blocks 222 are provided with multiple rolling balls. The opposite surfaces of the two stabilizing blocks 222 are fixedly provided with two upper and lower distributed clamping plates 223 for clamping the hook 200, and the upper clamping plate 223 is fixedly provided with a locking member 224 for hooking the hook 200.

[0041] like Figure 1 、 Figure 3 and Figure 6 As shown, the locking portion 23 further includes a steel cable 235, which is fixedly provided between the rear side of the mobile frame 21 and the rear side of the stabilization frame 220. It should be noted that when the stabilization frame 220 is in a vertical state, the steel cable 235 is in a naturally relaxed state and its excess portion is lower than the connection point of the steel cable 235 on the stabilization frame 220.

[0042] like Figure 3 、 Figure 6 and Figure 7 As shown, the locking piece 224 is U-shaped and its U-shaped opening faces the front side in the locked state. When the stabilizing frame 220 is in a vertical state, the left and right stabilizing blocks 222 press against the left and right sides of the gear shaft, and the pressing plate 223 presses against the corresponding hook 200 while the locking piece 224 clamps the corresponding hook 200. The hook 200 and the stabilizing frame 220 on the same side form a triangular frame.

[0043] like Figure 6 As shown, the left and right ends of the rotating column 221 are penetrated by a plurality of mounting holes 225 arranged equidistantly from left to right, and the upper end of the stabilizing frame 220 is provided with an adjustment hole 226 that cooperates with the mounting hole 225, and the adjustment hole 226 is locked with the corresponding mounting hole 225 by a bolt.

[0044] Before hoisting the gear shaft for heat treatment, the spacing between the two hooks 200 is manually adjusted according to the size of the gear shaft to be heat treated, so that the spacing adapts to the required placement space of the corresponding gear shaft, and then the left and right stabilization frames 220 are adjusted according to the size of the above-mentioned gear shaft. The specific operation is: use external hoisting equipment to move the stabilization frame 220 left and right so that the adjustment hole 226 on the stabilization frame 220 is opposite to the corresponding mounting hole 225, and then lock the position of the stabilization frame 220 by passing the bolt through the adjustment hole 226 and the corresponding mounting hole 225 and tightening the bolt. Therefore, when the stabilization frame 220 is in a vertical state, the stabilization block 222 on the stabilization frame 220 is in close contact with the gear shaft, and the hook 200 can be stuck in the U-shaped area of ​​the locking piece 224.

[0045] When the positions of the hook 200 and the stabilizing frame 220 are adjusted, the gear shaft can be hung, and the external lifting equipment works to pull the movable frame 21 upward. The movable frame 21 pulls the stabilizing frame 220 through the steel cable 235 so that the lower end of the stabilizing frame 220 rotates to the rear and upper side, and finally becomes horizontal. Then the gear shaft is hoisted onto the two hooks 200, and the movable frame 21 is reset and the stabilizing frame 220 is reset. At this time, the clamping plates 223 on the left and right sides press against the corresponding hooks 200, and the two stabilizing blocks 222 press against the gear shaft. At the same time, the hook 200 is stuck in the U-shaped area of ​​the corresponding locking piece 224. At this time, the left and right sides of the gear shaft are formed into a stable triangular frame through the hook 200, the stabilizing frame 220, the locking piece 224 and the suspension beam 1, which improves the stability of the movable gear shaft during the lifting process, and ensures that the gear shaft can follow the suspension beam 1 to move down accurately in the subsequent process of guiding the suspension beam 1 to move down.

[0046] like Figure 1 and Figure 6 As shown, the locking portion 23 includes a plug-in hole 230, and the upper end surface of the suspension beam 1 is provided with a groove group corresponding to the hook 200, and the groove group includes two rows of plug-in holes 230 equidistantly arranged from left to right in the front and rear rows. Two front-to-back symmetrical docking holes 231 are provided on the crossbeam 20, and the lower end surface of the movable frame 21 is fixedly provided with a plug-in column 232 corresponding to the plug-in hole 230 one by one. The locking of the crossbeam 20 is completed by passing the corresponding plug-in column 232 through the docking hole 231 to the corresponding plug-in hole 230.

[0047] like Figure 1 、 Figure 6 and Figure 7 As shown, the rotating column 221 is provided with two left-right symmetrical locking grooves 233. When the stabilizing frame 220 is in a vertical state, the mounting holes 225 face the front and rear sides, and the locking grooves 233 face the upper and lower sides. The lower end surface of the movable frame 21 is fixedly provided with locking columns 234 corresponding to the locking grooves 233. The rotating column 221 is locked by inserting the locking columns 234 into the corresponding locking grooves 233.

[0048] After the hook 200 is adjusted to its position, the movable frame 21 moves downward and resets, and the movable frame 21 moves downward, so that the steel cable 235 drives the stabilizing frame 220 to continue to reset and rotate, and finally the stabilizing frame 220 rotates to a vertical state under the action of its own gravity. At the same time, the locking slot 233 on the rotating post 221 rotates to the up and down direction. Due to the length setting of the steel cable 235, the locking post 234 on the movable frame 21 is not locked in the corresponding locking slot 233 at this time, so the movable frame 21 continues to move downward, and the movable frame 21 drives the locking post 234 to lock in the corresponding locking slot 233, circumferentially locking the rotating post 221 and the stabilizing frame 220. Secondly, during the downward movement of the movable frame 21, the plug-in post 232 passes through the corresponding docking hole 231 and enters the corresponding plug-in hole 230, thereby re-defining the left and right position of the hook 200, and then the suspension beam 1 and the gear shaft are moved for heat treatment.

[0049] In the process of the suspension beam 1 driving the gear shaft from top to bottom into the quenching pool, the suspension beam 1 drives the movable frame 21 to move down until the guide block 210 contacts the bottom wall of the guide groove 212, and the guide seat 211 prevents the movable frame 21 from continuing to move down. As the suspension beam 1 continues to move down, the movable frame 21 remains stationary, so that there is relative movement between the movable frame 21 and the suspension beam 1. At this time, the locking column 234 first exits the locking groove 233 to unlock the rotating column 221. Then, as the suspension beam 1 continues to move down, the movable frame 21 uses the rope to rotate the stabilizing frame 220 to the rear side, so that the hook 200 disengages from the U-shaped area of ​​the locking piece 224, and the left and right sides of the gear shaft are exposed. Finally, the gear shaft moves down to the set heat treatment height and performs heat treatment operation. The stabilizing frame 220, which is in a horizontal state after rotation, avoids.

[0050] In addition, the present invention also provides a method for heat treatment of a wind power output gear shaft, comprising the following steps: S1, adjusting the spacing: an external lifting device moves the movable frame 21 upward so that the locking portion 23 is unlocked, that is, the stabilizing frame 220 is in a horizontal state, and then the spacing between the two hooks 200 is adjusted according to the size of the gear shaft to be heat treated, and at the same time, the spacing between the two stabilizing frames 220 is adjusted so that the docking hole 231 on the beam 20 is opposite to the plug hole 230 at the corresponding position.

[0051] S2. Hang the gear shaft: After completing the adjustment process in step S1, the stabilizing frame 220 is in a horizontal state. Use external lifting equipment to hang the gear shaft on the two hooks 200. Then the mobile frame 21 is reset, the beam 20 is re-locked, and the stabilizing frame 220 is transformed into a vertical state, and the stabilizing frame 220 and the gear shaft are locked.

[0052] S3. Heat treatment operation: The operation of the bridge crane drives the suspension beam 1 and the gear shaft to move to the top of the quenching pool and gradually move downward. During the downward movement, the guide block 210 and the guide groove 212 cooperate to guide the downward movement of the suspension beam 1. As the downward movement continues, the guide seat 211 hinders the downward movement of the movable frame 21, so that the locking part 23 is unlocked, and the stabilizing frame 220 rotates to a horizontal state, so that the left and right sides of the gear shaft are exposed, and then the heat treatment operation is carried out.

[0053] S4. Cooling the gear shaft: After the heating treatment is completed, the bridge crane is operated to move the suspension beam 1 upward, the stabilizing frame 220 is reset and re-enters the vertical state, the locking part 23 is re-locked, the suspension beam 1 and the gear shaft move to the top of the cooling pool and gradually move downward. During the downward movement, the locking part 23 maintains the locked state, the guide block 210 cooperates with the corresponding guide groove 212 to guide the downward movement, and finally the gear shaft is immersed in the cooling medium for cooling. After cooling is completed, the gear shaft is taken out.

[0054] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0055] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0056] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0057] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wind power output gear shaft heat treatment device, installed on a bridge crane, characterized in that: include: A suspension beam is suspended from a bridge crane and is provided with a suspension mechanism for suspending a gear shaft and guiding the gear shaft into and out of a quenching tank and a cooling tank. The suspension mechanism includes a suspension component, which includes two bilaterally symmetrical crossbeams. Hooks are rotatably provided below the crossbeams, and the gear shaft is suspended on the two hooks. The upper end surface of the suspension beam is provided with a movable frame that slides up and down through a mounting rod, and guide blocks are fixedly provided on both the left and right sides of the movable frame. The upper ends of the quenching pool and the cooling pool are provided with guide seats that match the guide blocks one by one, and the upward and downward movement of the gear shaft is guided by the cooperation between the guide blocks and the guide seats; The suspension beam is provided with a stabilizing portion, which includes two stabilizing frames. A rotating column with an axis extending from left to right is rotatably provided on the suspension beam. The stabilizing frame is slidably sleeved on the rotating column. The upper ends of the two stabilizing frames are respectively located on the left and right sides of the suspension beam. Two stabilizing blocks distributed up and down are fixedly provided on the opposite surfaces of the lower ends of the two stabilizing frames. A tightening plate for tightening the hook is fixedly provided on the opposite surfaces of the two stabilizing blocks. A locking member for hooking the hook is fixedly provided on the upper tightening plate. The locking piece is U-shaped and its U-shaped opening faces the front side in the locked state. When the stabilizing frame is in the vertical state, the left and right stabilizing blocks press against the left and right sides of the gear shaft, the pressing plates press against the corresponding hooks, and the locking piece clamps the corresponding hooks. The hooks and the stabilizing frame on the same side form a triangular frame. When the guide block is not in conjunction with the guide seat, two stable triangular frames are formed between the adjacent hooks through the stabilizing frame. When the guide block is in conjunction with the guide seat, the stabilizing frame rotates to avoid the high temperature environment while the guide seat guides the suspension beam downward. The movable frame moves upward relative to the suspension beam, and during this relative upward movement, the locking portion is unlocked and the stabilizing frame is moved away; The locking portion includes a plug-in hole. The upper end surface of the suspension beam is provided with a groove group corresponding to the hooks one by one. The groove group includes two rows of plug-in holes equidistantly arranged from left to right. The crossbeam is provided with two front-to-back symmetrical docking holes. The lower end surface of the mobile frame is fixed with a plug-in column corresponding to the plug-in hole one by one. The corresponding plug-in column passes through the docking hole and enters the corresponding plug-in hole to complete the locking of the crossbeam. There are two symmetrical locking grooves on the rotating column. When the stabilization frame is in a vertical state, the mounting holes face the front and rear sides, and the locking grooves face the upper and lower sides. The lower end surface of the mobile frame is fixed with locking columns corresponding to the locking grooves. The rotating column is locked by inserting the locking columns into the corresponding locking grooves. The locking portion further includes a steel cable, which is fixedly provided between the rear side of the mobile frame and the rear side of the stabilization frame. When the stabilization frame is in a vertical state, the steel cable is in a naturally relaxed state and its excess portion is lower than the connection point of the steel cable on the stabilization frame. The mobile frame pulls the stabilizing frame through the steel cable so that the lower end of the stabilizing frame rotates upward and backward and finally becomes horizontal; The lower end surface of the movable frame is provided with a locking part. When the guide block is not matched with the guide seat, the locking part locks the triangular frame. After the guide block is matched with the guide seat, the locking part is unlocked.

2. The wind turbine output gear shaft heat treatment device according to claim 1, characterized in that: The opposite surfaces of the two left and right guide seats are each provided with a guide groove that cooperates with the corresponding guide block. When the guide block moves downward and contacts the lower wall of the guide seat, the guide seat prevents the guide block and the movable frame from continuing to move downward.

3. The wind power output gear shaft heat treatment device according to claim 2, characterized in that: The length of the guide groove in the front-to-back direction is greater than the front-to-back length of the guide block, and the distance between the two guide grooves on the left and right is greater than the distance between the two guide blocks. In order to reduce the impact caused by the inertia of the suspension beam and the gear shaft during the lifting and movement process, a U-shaped anti-collision pad is fixed in the guide groove.

4. The wind turbine output gear shaft heat treatment device according to claim 1, characterized in that: The left and right ends of the rotating column are penetrated by a plurality of mounting holes arranged equidistantly from left to right. The upper end of the stabilizing frame is provided with adjustment holes that match the mounting holes, and the adjustment holes and the corresponding mounting holes are locked by bolts.

5. A method for heat treatment of a wind turbine output gear shaft, which is accomplished by using a wind turbine output gear shaft heat treatment device according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Adjust the spacing: Move the movable frame upward to unlock the locking portion, then adjust the spacing between the two hooks according to the size of the gear shaft to be heat-treated, and simultaneously adjust the spacing between the two stabilizing frames; S2. Hanging the gear shaft: After completing the adjustment process in step S1, the stabilization frame is in a horizontal state. Use an external lifting device to hang the gear shaft on the two hooks. Then, reset the mobile frame, relock the crossbeam, and turn the stabilization frame to a vertical state. Lock the stabilization frame and the gear shaft. S3. Heat treatment: The overhead crane drives the suspension beam and gear shaft to the top of the quenching tank and gradually moves them downward. As they continue to move downward, the bottom of the guide seat blocks the downward movement of the movable frame, causing the locking part to unlock and the stabilizing frame to rotate to a horizontal state, exposing the left and right sides of the gear shaft. Heat treatment is then carried out. S4. Cooling the gear shaft: After the heat treatment is completed, the bridge crane is operated to move the suspension beam upward, the stabilizing frame is reset and re-enters the vertical state, the locking part is re-locked, the suspension beam and the gear shaft are moved to the top of the cooling pool and gradually move downward. During the downward movement, the locking part maintains the locked state, the guide block cooperates with the corresponding guide seat to guide the downward movement, and finally the gear shaft is immersed in the cooling medium for cooling. After cooling is completed, the gear shaft is taken out.

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