Wind power output gear shaft heat treatment device and method

Abstract

The invention relates to the technical field of output gear shaft machining, in particular to a wind power output gear shaft heat treatment device and method.The wind power output gear shaft heat treatment device comprises a suspension beam, a suspension mechanism, a stability maintaining part and a locking part; through cooperation of the guide blocks and the corresponding guide seats, the process that the suspension beams drive the gear shaft to move downwards into the tank is guided, the gear shaft conveniently enters and exits from the cooling tank and the quenching tank, and then through locking operation of the locking parts, two stable triangular frames are formed on the left side and the right side of the gear shaft correspondingly; the stability of the gear shaft in the moving process and the cooling process of the gear shaft entering the cooling pool is improved, shaking is reduced, potential safety hazards are reduced, in the quenching pool entering process, a stable triangular frame is formed through locking of the stability maintaining frame, then the high-temperature heat treatment process is avoided through unlocking, meanwhile, the gear shaft is exposed in the maximum area, and the service life of the gear shaft is prolonged. And the heat treatment effect is ensured to meet the requirements while the moving stability is improved.

Description

Technical Field

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

[0002] The wind power output gear shaft is one of the key components in a wind power generation unit, mainly used for transmitting mechanical energy. The output gear shaft mainly has two design methods: an integrated design (the gear and the shaft are designed as a whole) and a split design (the gear and the shaft are manufactured separately). During the design and manufacturing process, in order to improve the overall hardness, strength, toughness, etc., heat treatment operations need to be performed on the gear shaft.

[0003] Currently, when performing heat treatment operations on an integrated gear shaft, a bridge crane is mainly used to hoist and move the gear shaft into a quenching pool for heat treatment first, and then into a cooling pool for cooling, thus completing the heat treatment operation. During the above process, the bridge crane mainly cooperates with the existing hook to lift the gear shaft and drive the gear shaft to move into the quenching pool or the cooling pool for heat treatment or cooling.

[0004] The following problems exist in the above heat treatment process: During the process of moving into the quenching pool and the cooling pool, due to the shaking generated during the movement, it affects the process of the gear shaft entering the pool, and it is easy to have problems such as the gear shaft being damaged by collision due to shaking, and at the same time, it increases the safety hazards in the overall operation process. Secondly, when the gear shaft enters the cooling pool for cooling, it is easy for local rapid evaporation of the medium to generate bubbles due to the high-temperature workpiece being quickly immersed in the cooling medium, and at the same time, the cooling medium flows rapidly. The generated bubbles and the rapidly flowing cooling medium during this 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 only by relying on the method of placing it on the hook. Summary of the Invention

[0005] Based on this, it is necessary to provide a heat treatment device and method for a wind power output gear shaft, aiming to solve the above problems in 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, the suspension beam is suspended on the bridge crane, and a suspension mechanism for suspending the gear shaft and guiding the gear shaft in and out of the quenching pool and the cooling pool is arranged on the suspension beam. The suspension mechanism includes a suspension component, and the suspension component includes two symmetric cross beams on the left and right. Hooks are rotatably arranged below the cross beams, and the gear shaft is suspended on the two hooks.

[0007] The upper end surface of the cantilever beam is provided with a moving frame that slides up and down through a mounting rod. Guide blocks are fixedly arranged on both the left and right sides of the moving frame. Guide seats that are respectively matched with the guide blocks are arranged on the upper ends of the quenching pool and the cooling pool. The up-and-down movement process of the gear shaft is guided through the cooperation between the guide blocks and the guide seats.

[0008] A stability maintenance part is arranged on the cantilever beam. The stability maintenance part includes two stability maintenance frames. When the guide blocks are not matched with the guide seats, two stable triangular frames are formed on the left and right respectively through the cooperation between the stability maintenance frames and the adjacent hooks. When the guide blocks are matched with the guide seats, the stability maintenance frames rotate to avoid the high-temperature environment while the guide seats guide the cantilever beam to move downward.

[0009] A locking part is arranged on the lower end surface of the moving frame. When the guide blocks are not matched with the guide seats, the locking part locks the triangular frame. After the guide blocks are matched with the guide seats, the locking part releases the lock.

[0010] According to a preferred embodiment, guide grooves that are mutually matched with the corresponding guide blocks are respectively formed on the opposite surfaces of the two relatively arranged left and right guide seats. When the guide blocks move downward and contact the lower wall of the guide seats, the guide seats prevent the guide blocks and the moving frame from continuing to move downward, and the moving frame moves upward relative to the cantilever beam. During this relative upward movement process, the unlocking process of the locking part and the avoidance process of the stability maintenance frames are carried out.

[0011] According to a preferred embodiment, the length of the guide groove in the front-back direction is greater than the front-back length of the guide block, and the distance between the two relatively arranged left and right guide grooves is greater than the distance between the two guide blocks. In order to reduce the impact influence caused by the inertia of the cantilever beam and the gear shaft itself during the hoisting and moving process, a U-shaped anti-collision pad is fixedly arranged in the guide groove.

[0012] According to a preferred embodiment, the stability maintenance part further includes a rotating column. A rotating column with an axis extending from left to right is rotatably penetrated through the cantilever beam. The stability maintenance frames are sleeved on the rotating column in a left-right sliding manner. The upper end parts of the two stability maintenance frames are respectively located on the left and right sides of the cantilever beam. Two stability maintenance blocks distributed up and down are fixedly arranged on the opposite surfaces of the lower ends of the two stability maintenance frames. Anti-pressing plates for pressing against the hooks are fixedly arranged on the opposite surfaces of the two stability maintenance blocks, and a locking part for hooking the hooks is fixedly arranged on the upper anti-pressing plate.

[0013] According to a preferred embodiment, the locking part is U-shaped and its U-shaped opening faces forward in the locked state. When the stability maintenance frames are in a vertical state, the two left and right stability maintenance blocks press against the left and right sides of the gear shaft. While the anti-pressing plates press against the corresponding hooks, the locking part catches the corresponding hooks, and a triangular frame is formed by the hooks and the stability maintenance frames on the same side.

[0014] According to a preferred embodiment, a plurality of mounting holes arranged at equal intervals from left to right are respectively penetrated through the left and right ends of the rotating column. An adjusting hole that is matched with the mounting hole is formed at the upper end of the stability maintenance frame, and the adjusting hole and the corresponding mounting hole are locked through bolts.

[0015] According to a preferred embodiment, the locking portion includes insertion holes. The upper end surface of the cantilever beam is provided with a set of grooves corresponding to the hooks one by one. The set of grooves includes two rows of insertion holes arranged at equal intervals from left to right in the front and back. Two symmetric docking holes are penetrated through the cross beam. The lower end surface of the moving frame is fixedly provided with insertion columns corresponding to the insertion holes one by one. The cross beam is locked by inserting the corresponding insertion columns through the docking holes into the corresponding insertion holes.

[0016] According to a preferred embodiment, two symmetric locking grooves are penetrated through the rotating column. When the stability maintaining frame is in the vertical state, the installation holes face the front and back sides, and the locking grooves face the upper and lower sides. The lower end surface of the moving 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 preferred embodiment, the locking portion further includes a steel cable. A steel cable is fixedly arranged between the rear side of the moving frame and the rear side of the stability maintaining frame. When the stability maintaining frame is in the vertical state, the steel cable is in a natural and loose state and its redundant part is lower than the connection point of the steel cable on the stability maintaining frame.

[0018] In summary, the present invention includes at least one of the following beneficial effects: First, through the cooperation between the guiding block and the corresponding guiding seat in the present invention, during the process of guiding the cantilever beam to drive the gear shaft to move downward, it is convenient for the gear shaft to enter and exit the cooling pool and the quenching pool. Secondly, through the locking operation of the locking portion, two stable triangular frameworks are formed on both sides of the gear shaft, improving the stability of the gear shaft during the moving process and during the cooling process in the cooling pool, reducing shaking and potential safety hazards. During the process of entering the quenching pool, the stability maintaining frame is first locked to form a stable triangular framework, and then unlocked to avoid the high-temperature heat treatment process. At the same time, the gear shaft is exposed to the maximum extent, ensuring the moving stability while ensuring that the heat treatment effect meets the requirements.

[0019] Second, in the present invention, by means of the guiding seat hindering the continuous downward movement of the moving frame, the locking portion is adaptively controlled to unlock first, and then the stability maintaining frame rotates backward and upward to avoid, exposing both sides of the gear shaft, facilitating its heat treatment. At the same time, the stability maintaining frame rotates to avoid the high-temperature environment deep in the quenching pool, prolonging the service life of the stability maintaining frame, and eliminating the need to use the same high-temperature resistant material as the hook, reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

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

[0022] Figure 2 Shows a three-dimensional structural schematic diagram between a cantilever beam, a guiding block, and a guiding seat provided according to an embodiment of the present invention.

[0023] Figure 3 Shows a front view between a cantilever beam, a moving frame, and a stability maintaining frame provided according to an embodiment of the present invention.

[0024] Figure 4 Shows a top view between a moving frame, a guiding seat, and a cantilever beam provided according to an embodiment of the present invention.

[0025] Figure 5 Shows a provided according to an embodiment of the present invention Figure 4 Enlarged view of part A.

[0026] Figure 6 Shows a partial sectional exploded view between a moving frame, a cantilever beam, and a stability maintaining frame provided according to an embodiment of the present invention.

[0027] Figure 7 Shows a schematic diagram of the change between a locked state and an unlocked state provided according to an embodiment of the present invention.

[0028] Among them, the above-mentioned drawings include the following reference numerals: 1, cantilever beam; 2, hanging mechanism; 20, cross beam; 200, hook; 21, moving frame; 210, guiding block; 211, guiding seat; 212, guiding groove; 213, anti-collision pad; 22, stability maintaining part; 220, stability maintaining frame; 221, rotating column; 222, stability maintaining block; 223, pressing plate; 224, locking part; 225, mounting hole; 226, adjusting hole; 23, locking part; 230, inserting hole; 231, docking hole; 232, inserting column; 233, locking groove; 234, locking column; 235, steel cable. Detailed implementation manners

[0029] To make the above-mentioned objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0030] As Figure 1 And Figure 2As shown in the figure, a heat treatment device for a wind power output gear shaft is arranged on a bridge crane, including: a suspension beam 1, the suspension beam 1 is suspended on the bridge crane, and a suspension mechanism 2 for suspending the gear shaft and guiding the gear shaft in and out of the quenching pool and the cooling pool is arranged on the suspension beam 1. The suspension mechanism 2 includes a suspension component, and the suspension component includes two symmetric cross beams 20 on the left and right. Refer to Figure 6 , after the cross beam 20 is placed on the suspension beam 1, it is locked by the screw at the rear side. The cross beam 20 can only move left and right. A hook 200 is rotatably arranged below the cross beam 20, and the gear shaft is suspended on the two hooks 200.

[0031] As Figure 1 and Figure 2 shown, a moving frame 21 is slidably arranged up and down on the upper end surface of the suspension beam 1 through a mounting rod. Guide blocks 210 are fixedly arranged on both the left and right sides of the moving frame 21. Guide seats 211 that are respectively matched with the guide blocks 210 are arranged at the upper ends of the quenching pool and the cooling pool. The up and down movement process of the gear shaft is guided through the cooperation between the guide blocks 210 and the guide seats 211.

[0032] As Figure 1 , Figure 2 and Figure 3 shown, a stability maintenance part 22 is arranged on the suspension beam 1. The stability maintenance part 22 includes stability maintenance frames 220 located on the left and right sides of the gear shaft. When the guide blocks 210 are not matched with the guide seats 211, two stable triangular frames are formed between the stability maintenance frames 220 on the left and right sides and the adjacent hooks 200 respectively. When the guide blocks 210 are matched with the guide seats 211, the stability maintenance frames 220 rotate to avoid the high-temperature environment while the guide seats 211 guide the suspension beam 1 to move down. A locking part 23 is arranged on the lower end surface of the moving frame 21. When the guide blocks 210 are not matched with the guide seats 211, the locking part 23 locks the triangular frame. After the cooperation between the guide blocks 210 and the guide seats 211 is completed, the locking part 23 releases the lock.

[0033] First, the moving frame 21 is lifted by an external lifting device, so that the locking part 23 releases the lock, that is, the stability maintenance frames 220 are 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 at the same time, the distance between the two stability maintenance frames 220 is adjusted. Then, the gear shaft is suspended on the two hooks 200 to complete the placement process of the gear shaft. The bridge crane works to drive the suspension beam 1, the hooks 200 and the gear shaft to move to the quenching pool for heat treatment operations. During the process of moving above the quenching pool, the moving frame 21 moves down and resets, so that the stability maintenance frames 220 reset to a vertical state. Finally, the locking part 23 locks the stability maintenance frames 220 and the hooks 200, so that stable triangular frames are formed on both the left and right sides of the gear shaft.

[0034] During the process of the hanging beam 1 driving the gear shaft to move downward from above into the quenching pool, through the cooperation between the guiding block 210 and the guiding seat 211, the process of guiding the hanging beam 1 and the gear shaft to move downward into the quenching pool is carried out, avoiding the problem of knocking and damage caused by the shaking of the gear shaft during the downward movement. When the cooperation between the guiding block 210 and the guiding seat 211 is completed, as the hanging beam 1 continues to move downward, the guiding seat 211 hinders the movement of the moving frame 21 downward, so that the locking part 23 is unlocked, and the stabilizing frame 220 rotates to a horizontal state. Refer to Figure 7 , so that both sides of the gear shaft are exposed, facilitating its 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 hanging beam 1 gradually approaches the moving frame 21 and finally drives the moving frame 21 to move upward continuously. The locking part 23 returns to the locked state again. Then, the gear shaft is moved into the cooling pool for cooling. The stability of the gear shaft during the moving process is improved through the locking process of the locking part 23. Secondly, it should be noted that: according to actual needs, the height of the guiding seat 211 is controlled so that during the process of the gear shaft being hoisted and moved from top to bottom into the cooling pool for cooling, when the guiding block 210 moves downward to complete the cooperation with the guiding 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, and the stability during cooling is improved through the triangular frame formed by locking, avoiding the problem of knocking and damage caused by the overall shaking of the gear shaft due to the local rapid evaporation of the cooling medium to form bubbles.

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

[0037] As Figure 2 , Figure 4 and Figure 5 shown, guide grooves 212 that cooperate with the corresponding guide blocks 210 are provided on the opposite surfaces of the two relatively left and right guiding seats 211. In order to facilitate the guide block 210 to enter the guide groove 212, the upper end of the inner wall of the guide groove 212 is chamfered. When the guide block 210 moves downward and contacts the lower wall of the guiding seat 211, the guiding seat 211 hinders the guide block 210 and the moving frame 21 from continuing to move downward, and the moving frame 21 moves upward relative to the hanging beam 1. During this relative upward movement process, the unlocking process of the locking part 23 and the avoidance process of the stabilizing frame 220 are carried out.

[0038] As 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] As Figure 6 shown, a plurality of mounting holes 225 arranged at equal intervals from left to right are formed through both the left and right ends of the rotating column 221. An adjusting hole 226 matching the mounting holes 225 is formed at the upper end of the stability maintaining frame 220. The adjusting hole 226 and the corresponding mounting hole 225 are locked and connected by bolts.

[0044] Before hoisting the gear shaft for heat treatment operation, manually adjust the distance between the two hooks 200 according to the size of the gear shaft to be heat treated, so that the distance adapts to the required placement space of the corresponding gear shaft. Then, adjust the stability maintaining frames 220 on the left and right according to the size of the above-mentioned gear shaft. The specific operation is as follows: Use an external hoisting device to move the stability maintaining frame 220 left and right, so that the adjusting hole 226 on the stability maintaining frame 220 is opposite to the corresponding mounting hole 225. Then, lock and fix the position of the stability maintaining frame 220 by passing bolts through the adjusting hole 226 and the corresponding mounting hole 225 and tightening the bolts. Therefore, when the stability maintaining frame 220 is in a vertical state at this time, the stability maintaining block 222 on the stability maintaining frame 220 is in tight contact with the gear shaft, and at this time, the hook 200 can be inserted into the U-shaped area of the locking member 224.

[0045] After adjusting the positions of the hook 200 and the stability maintaining frame 220, the gear shaft can be suspended. The external hoisting device works to pull the moving frame 21 upward. The moving frame 21 pulls the stability maintaining frame 220 through the steel cable 235, so that the lower end of the stability maintaining frame 220 rotates backward and upward, and finally is in a horizontal state. Then, hoist the gear shaft onto the two hooks 200. The moving frame 21 resets and makes the stability maintaining frame 220 reset. At this time, the abutting plates 223 on the left and right sides abut against the corresponding hooks 200, and the two stability maintaining blocks 222 abut against the gear shaft. At the same time, the hook 200 is inserted into the U-shaped area of the corresponding locking member 224. At this time, both the left and right sides of the gear shaft jointly form a stable triangular frame through the hook 200, the stability maintaining frame 220, the locking member 224 and the suspension beam 1, improving the stability during the hoisting and moving of the gear shaft. At the same time, it ensures that the gear shaft can accurately move downward following the suspension beam 1 during the subsequent guiding of the suspension beam 1 to move downward.

[0046] As Figure 1 and Figure 6 shown, the locking portion 23 includes a plugging hole 230. A groove group corresponding to the hook 200 one by one is formed on the upper end surface of the suspension beam 1. The groove group includes two rows of plugging holes 230 arranged at equal intervals from left to right in the front and back. Two symmetrically arranged docking holes 231 are formed through the cross beam 20. Plugging columns 232 corresponding to the plugging holes 230 one by one are fixedly arranged on the lower end surface of the moving frame 21. The cross beam 20 is locked by passing the corresponding plugging columns 232 through the docking holes 231 into the corresponding plugging holes 230.

[0047] As Figure 1 、Figure 6 and Figure 7 As shown in Figure 7 , two symmetric locking grooves 233 are formed through the rotating column 221 in the left - right direction. When the stability - maintaining frame 220 is in the vertical state, the mounting holes 225 face the front and rear sides, and the locking grooves 233 face the upper and lower sides. A locking post 234 corresponding to each locking groove 233 is fixedly arranged on the lower end surface of the moving frame 21. The rotating column 221 is locked by inserting the locking post 234 into the corresponding locking groove 233.

[0048] After adjusting the position of the hook 200, during the process of the moving frame 21 moving downward and resetting, the downward movement of the moving frame 21 causes the steel cable 235 to drive the stability - maintaining frame 220 to continuously rotate in the reset direction. Finally, the stability - maintaining frame 220 rotates to the vertical state under its own gravity. At the same time, the locking grooves 233 on the rotating column 221 rotate to face the upper and lower sides. Due to the set length of the steel cable 235, the locking post 234 on the moving frame 21 is not inserted into the corresponding locking groove 233 at this time. Therefore, the moving frame 21 continues to move downward, and the moving frame 21 drives the locking post 234 to be inserted into the corresponding locking groove 233, performing circumferential locking on the rotating column 221 and the stability - maintaining frame 220. Secondly, during the downward movement of the moving frame 21, the inserting post 232 passes through the corresponding docking hole 231 and enters the corresponding inserting hole 230, thereby further limiting the left - right position of the hook 200. After that, the suspension beam 1 and the gear shaft are moved for heat treatment operations.

[0049] During the process of the suspension beam 1 driving the gear shaft to enter the quenching pool from top to bottom, when the suspension beam 1 drives the moving frame 21 to move downward until the guiding block 210 contacts the bottom wall of the guiding groove 212, the guiding seat 211 prevents the moving frame 21 from continuing to move downward. As the suspension beam 1 continues to move downward, the moving frame 21 remains stationary, so there is relative movement between the moving frame 21 and the suspension beam 1. At this time, the locking post 234 first exits the locking groove 233 to unlock the rotating column 221. Then, as the suspension beam 1 continues to move downward, the moving frame 21 causes the stability - maintaining frame 220 to rotate backward through the rope, so that the hook 200 is disengaged from the U - shaped area of the locking member 224, and the left and right sides of the gear shaft are exposed. Finally, the gear shaft moves downward to the set heat - treatment height and undergoes heat - treatment operations, and the stability - maintaining frame 220 in the horizontal state after rotation makes way.

[0050] In addition, the present invention also provides a heat - treatment method for a wind - power output gear shaft, including the following steps: S1. Adjusting the spacing: The external lifting device moves the moving frame 21 upward, so that the locking part 23 is unlocked, that is, the stability - maintaining frame 220 is in the horizontal state. Then, according to the size of the gear shaft to be heat - treated, the spacing between the two hooks 200 is adjusted, and at the same time, the spacing between the two stability - maintaining frames 220 is adjusted, so that the docking holes 231 on the cross - beam 20 are opposite to the corresponding inserting holes 230 at the corresponding positions.

[0051] S2. Suspended gear shaft: After completing the adjustment process in step S1, the stability maintenance frame 220 is in a horizontal state. Use an external lifting device to suspend the gear shaft on the two hooks 200. Then, the moving frame 21 resets, the cross beam 20 is relocked, and the stability maintenance frame 220 is changed to a vertical state, and the stability maintenance frame 220 and the gear shaft are locked.

[0052] S3. Heat treatment operation: The bridge crane works to drive the suspension beam 1 and the gear shaft to move above the quenching pool and gradually move downwards. During the downward movement, through the cooperation between the guiding block 210 and the guiding groove 212, the downward movement of the suspension beam 1 is guided. As the continuous downward movement progresses, the guiding seat 211 obstructs the downward movement of the moving frame 21, causing the locking part 23 to be unlocked, and the stability maintenance frame 220 rotates to a horizontal state, exposing both sides of the gear shaft. Then, the heat treatment operation is carried out.

[0053] S4. Cooling the gear shaft: After completing the heat treatment, the bridge crane works to lift the suspension beam 1. The stability maintenance frame 220 resets and re-enters the vertical state, the locking part 23 is relocked. The suspension beam 1 and the gear shaft move above the cooling pool and gradually move downwards. During the downward movement, the locking part 23 maintains the locked state, and the guiding block 210 cooperates with the corresponding guiding groove 212 to guide the downward movement process. Finally, the gear shaft is immersed in the cooling medium for cooling. After the cooling is completed, the gear shaft is taken out.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary explanations, these orientation words do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0055] In addition, the terms "first", "second", "No. 1", "No. 2" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "No. 1", "No. 2" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0057] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A heat treatment device for a wind power output gear shaft, which is arranged on a bridge crane, is characterized in that, Including: A cantilever beam, which is suspended on an overhead crane. A suspension mechanism for suspending a gear shaft and guiding the gear shaft in and out of a quenching pool and a cooling pool is arranged on the cantilever beam. The suspension mechanism includes a suspension component, and the suspension component includes two symmetric cross beams. Hooks are rotatably arranged below the cross beams, and the gear shaft is suspended on the two hooks. A moving frame is slidably arranged up and down on the upper end surface of the cantilever beam through a mounting rod. Guide blocks are fixedly arranged on both the left and right sides of the moving frame. Guide seats that are respectively matched with the guide blocks are arranged at the upper ends of the quenching pool and the cooling pool, and the up-and-down movement process of the gear shaft is guided through the cooperation between the guide blocks and the guide seats. A stability maintenance part is arranged on the cantilever beam. The stability maintenance part includes two stability maintenance frames. When the guide blocks are not matched with the guide seats, two stable triangular frames are formed respectively between the stability maintenance frames and the adjacent hooks on the left and right. When the guide blocks are matched with the guide seats, the stability maintenance frames rotate to avoid the high-temperature environment while the guide seats guide the cantilever beam to move down. A locking part is arranged on the lower end surface of the moving frame. When the guide blocks are not matched with the guide seats, the locking part locks the triangular frame. After the guide blocks are matched with the guide seats, the locking part releases the lock.

2. The heat treatment device for a wind power output gear shaft according to claim 1, characterized in that: Guide grooves that are mutually matched with the corresponding guide blocks are respectively arranged on the opposite surfaces of the two relatively left-and-right guide seats. When the guide blocks move down and contact the lower wall of the guide seats, the guide seats prevent the guide blocks and the moving frame from continuing to move down, and the moving frame moves up relative to the cantilever beam. During this relative upward movement process, the unlocking process of the locking part and the avoidance process of the stability maintenance frames are carried out.

3. A heat treatment device for a wind power output gear shaft according to claim 2, characterized in that: The length of the guide grooves in the front-back direction is greater than the front-back length of the guide blocks, and the distance between the two relatively left-and-right guide grooves is greater than the distance between the two guide blocks. In order to reduce the impact influence caused by the inertia of the cantilever beam and the gear shaft itself during the hoisting and moving process, U-shaped anti-collision pads are fixedly arranged in the guide grooves.

4. A heat treatment device for a wind power output gear shaft according to claim 1, characterized in that: The stability maintenance part further includes a rotating column. A rotating column with an axis extending from left to right is rotatably penetrated through the cantilever beam. The stability maintenance frames are slidably sleeved on the rotating column from left to right. The upper ends of the two stability maintenance frames are respectively located on the left and right sides of the cantilever beam. Two stability maintenance blocks distributed up and down are fixedly arranged on the opposite surfaces of the lower ends of the two stability maintenance frames. Anti-tightening plates for tightly pressing the hooks are fixedly arranged on the opposite surfaces of the two stability maintenance blocks, and locking parts for hooking the hooks are fixedly arranged on the upper anti-tightening plates.

5. A heat treatment device for a wind power output gear shaft according to claim 4, characterized in that: The locking part is U-shaped and its U-shaped opening faces forward in the locked state. When the stability maintenance frames are in a vertical state, the two stability maintenance blocks on the left and right tightly press the left and right sides of the gear shaft. While the anti-tightening plates tightly press the corresponding hooks, the locking parts catch the corresponding hooks, and a triangular frame is formed by the hooks and the stability maintenance frames on the same side.

6. A heat treatment device for a wind power output gear shaft according to claim 4, characterized in that: A plurality of mounting holes arranged at equal intervals from left to right are respectively penetrated through the left and right ends of the rotating column. Adjusting holes that are matched with the mounting holes are arranged at the upper ends of the stability maintenance frames, and the adjusting holes and the corresponding mounting holes are locked through bolts.

7. A heat treatment device for a wind power output gear shaft according to claim 1, characterized in that: The locking part includes insertion holes. The upper end surface of the cantilever beam is provided with a groove group corresponding to the hooks one by one. The groove group includes two rows of insertion holes arranged equidistantly from left to right in the front and back. Two symmetric docking holes are penetrated through the cross beam. The lower end surface of the moving frame is fixedly provided with insertion columns corresponding to the insertion holes one by one. The cross beam is locked by inserting the corresponding insertion columns through the docking holes into the corresponding insertion holes.

8. A heat treatment device for a wind power output gear shaft according to claim 6, characterized in that: Two symmetric locking grooves are penetrated through the rotating column. When the stability maintaining frame is in the vertical state, the installation holes face the front and back sides, and the locking grooves face the upper and lower sides. The lower end surface of the moving 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.

9. A heat treatment device for a wind power output gear shaft according to claim 1, characterized in that: The locking part further includes a steel cable. A steel cable is fixedly provided between the rear side of the moving frame and the rear side of the stability maintaining frame. When the stability maintaining frame is in the vertical state, the steel cable is in a natural and slack state and its redundant part is lower than the connection point of the steel cable on the stability maintaining frame.

10. A heat treatment method for a wind power output gear shaft, which is completed in cooperation with a heat treatment device for a wind power output gear shaft according to any one of claims 1 to 9, characterized in that, It includes the following steps: S1. Adjust the spacing: Move the moving frame upward to release the locking of the locking part, and then adjust the spacing between the two hooks according to the size of the gear shaft to be heat-treated, and at the same time adjust the spacing between the two stability maintaining frames; S2. Hang the gear shaft: After completing the adjustment process in step S1, at this time the stability maintaining frame is in the horizontal state. Use an external lifting device to hang the gear shaft on the two hooks, and then the moving frame resets, relocks the cross beam and makes the stability maintaining frame change to the vertical state, locking the stability maintaining frame and the gear shaft; S3. Heat treatment operation: The bridge crane drives the cantilever beam and the gear shaft to move above the quenching pool and gradually move downward. As it continues to move downward, the bottom of the guiding seat hinders the downward movement of the moving frame, causing the locking part to unlock, and the stability maintaining frame rotates to the horizontal state, exposing the left and right sides of the gear shaft, and then heat treatment operation is carried out; S4. Cool the gear shaft: After the heat treatment is completed, the bridge crane operates to lift the cantilever beam, the stability maintaining frame resets and re-enters the vertical state, the locking part is relocked, the cantilever beam and the gear shaft move above the cooling pool and gradually move downward. During the downward movement, the locking part maintains the locked state, and the guiding block cooperates with the corresponding guiding seat to guide the downward movement process. Finally, the gear shaft is immersed in the cooling medium for cooling. After the cooling is completed, the gear shaft is taken out.

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