Dismounting tool for high-speed shaft sleeve of wind power gear box
By designing the disassembly tooling for the high-speed shaft sleeve of wind power gear box and mechanically disassembly, the problems of high heating control and high safety hazards in the prior art are solved, and a safe and effective disassembly effect is achieved.
Patent Information
- Application Number
- CN202422728169.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-09
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-09
AI Technical Summary
The prior art has problems such as high difficulty in heating control and high safety hazards when disassembling the high-speed shaft sleeve of the wind power gear box, which affects the quality of the high-speed shaft and the safety of the operator.
A disassembly tool for wind power gear box high-speed shaft sleeve is designed, and the shaft sleeve is removed from the high-speed shaft through jaws and bolt structures is used to mechanically disassemble the shaft from the high-speed shaft, avoiding the heating process and ensuring the quality and operation safety of the high-speed shaft.
The high-speed shaft sleeve is safely and effectively disassembled, protecting the quality of the high-speed shaft, reducing operating risks, and reducing safety hazards to operators.
Smart Images
Figure CN223251559U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of wind power gear boxes, in particular to a disassembly tool for a high-speed shaft sleeve of a wind power gear box. Background Art
[0002] The high-speed shaft system inside the wind turbine gearbox serves as the output shaft system inside the box. Due to the high speed of the high-speed shaft system, the frequency of damage to the high-speed shaft gears is very high among all the gear parts. The high-speed shaft system of some models will be installed with a sleeve on the blade side. This sleeve is installed on the shaft diameter of the high-speed shaft by interference fit. When the gearbox is subsequently returned to the factory for repair, if a high-speed shaft system of this structure is encountered, if the sleeve in this area is found to be worn, the sleeve needs to be removed and replaced with a new one. Since the sleeve in this area was originally designed to prevent it from rotating on the high-speed shaft, the inner hole of the sleeve and the shaft diameter of the high-speed shaft are completely interference fit, and direct removal is still difficult. Usually, the sleeve in this area is removed by heating during disassembly. At that time, the temperature was difficult to control, and excessively high temperature would affect the high-speed shaft body, thereby affecting the quality of the high-speed shaft itself.
[0003] Technical solution of prior art 1:
[0004] Wrap the heating tape around the outer circle of the sleeve on the high-speed shaft. After the temperature of the sleeve rises, knock on the flange of the sleeve to remove the sleeve from the high-speed shaft.
[0005] Disadvantages of the prior art 1:
[0006] 1. The heating time of the electric heating belt is difficult to control. If the heating time is too short, the sleeve will not expand enough due to heat. It will be impossible to remove the sleeve from the high-speed shaft by knocking on the sleeve flange. It will need to continue heating, which wastes time. If the heating time is too long, the heat will be transferred to the high-speed shaft body, and the shaft diameter of the high-speed shaft will also expand after being heated. Therefore, if the heating time is too long, it will be difficult to disassemble.
[0007] 2. If the shaft sleeve flange is struck by knocking, it is easy to leave scratches on the high-speed shaft if it hits the high-speed shaft body during the knocking process. In addition, there is a certain danger to the workers themselves during the knocking process.
[0008] Technical solution of existing technology 2:
[0009] Use a flame-jet torch to aim the flame at the outer circle of the sleeve and remove the sleeve by continuously heating it.
[0010] Disadvantages of the second prior art:
[0011] 1. The flame from the flame gun is very hot, so the high-speed shaft needs to be suspended and rotated continuously to avoid local overheating. This requires two people to operate the torch simultaneously. Furthermore, improper operation of the torch can injure workers.
[0012] 2. The high-speed shaft sleeve to be removed is relatively close to the gear. If the spray burns the tooth surface of the gear, it will affect the quality of the gear and thus affect the subsequent use of the gear. Utility Model Content
[0013] The utility model provides a disassembly tool for a high-speed shaft sleeve of a wind power gear box, which aims to solve the shortcomings of the prior art, ensure a safe and effective disassembly process, and ensure the quality of the high-speed shaft itself.
[0014] The technical solution adopted by the utility model to solve its technical problems is:
[0015] A disassembly tool for a high-speed shaft sleeve of a wind turbine gearbox, characterized by:
[0016] The sleeve is installed on the shaft diameter on one side of the high-speed shaft;
[0017] It has more than two claws, and the claws are composed of claw columns and claw hooks;
[0018] The outer periphery of the cover plate has a protruding convex structure, namely the side plate;
[0019] The two sides of the side plate are respectively hinged to the pressing plate, and the hinge axis is located at the upper part of the pressing plate;
[0020] The above-mentioned pressing plate is hingedly connected to a claw column of the claw, and the hinge axis is located at the lower part of the pressing plate and the upper part of the claw column;
[0021] The claw hook of the claw is hooked to the flange downward end face of the sleeve;
[0022] The tooling bolt is threadedly matched with and passes through the threaded hole at the center of the cover plate, and the lower end surface of the tooling bolt abuts against the upper end surface of the high-speed shaft.
[0023] After the bolt passes through the corresponding through holes of the pressure plate and the claw column, a round nut is screwed on the bolt, and the bolt is used as a hinge axis to hinge the pressure plate and the claw column; after the bolt passes through the corresponding through holes of the pressure plate and the side plate, a round nut is screwed on the bolt, and the bolt is used as a hinge axis to hinge the pressure plate and the side plate.
[0024] There are three claws evenly distributed around the circumference, and two side plates are evenly distributed around the circumference of the cover plate 5, with each side plate corresponding to one claw.
[0025] The through holes on the upper part and the through holes on the lower part of the pressing plate are arranged symmetrically.
[0026] The utility model is beneficial in that:
[0027] 1) There is no need to heat with an electric heating belt or with a flame-blasting gun. The tooling of the present invention is sufficient to dismantle high-speed shaft sleeves within a certain size range, which is safe and effective.
[0028] 2) Avoid damaging the high-speed shaft body during the knocking process, and also avoid the risk of the flame temperature being too high and easily damaging the high-speed shaft tooth surface, effectively ensuring the quality of the high-speed shaft itself. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0030] Figure 1 This is a diagram showing the effect of the utility model tooling being installed on a high-speed shaft;
[0031] Figure 2 for Figure 1 A-direction partial view;
[0032] Figure 3 for Figure 1 B view in the figure. DETAILED DESCRIPTION
[0033] In order to more clearly illustrate the technical solution of the present invention, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without inventive work. In order to facilitate understanding of the present invention, the following will be described in more detail with reference to the drawings and specific embodiments.
[0034] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more elements can be present in between. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more elements can be present in between. The terms "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0035] like Figure 1 、 Figure 2 、 Figure 3 As shown:
[0036] The utility model provides a disassembly tool for a high-speed shaft sleeve of a wind power gear box.
[0037] The shaft sleeve 2 is installed on the shaft diameter on one side of the high-speed shaft 1.
[0038] This tooling requires a total of three claws 3, which are composed of a claw column 31 and a claw hook 32.
[0039] The cover plate 5 is a circular integral structure, and its structural shape is similar to that of a fan. A threaded hole is pre-processed at the center of the cover plate 5, and there are three protruding protrusions in the circumferential direction of the cover plate 5, namely the side plates 51. The thickness of these three side plates 51 is consistent with that of the cover plate 5, and they are evenly distributed on the circumferential direction of the cover plate 5. A through hole is respectively opened on each of the three side plates 51, and a through hole is also pre-opened on the upper part of the claw column 31. The size of the through hole of the claw column 31 is consistent with the size of the through hole of the side plate 51. Similarly, two through holes need to be processed in advance at both ends of the pressure plate 4. The specifications of the through hole of the pressure plate 4 are consistent with the size of the through hole of the side plate 51. The two through holes on the pressure plate 4 are symmetrically distributed on the left and right.
[0040] First, align the through-holes at the bottom of the pressure plate 4 with the through-holes at the top of the claw posts 31. Each claw 3 requires two pressure plates 4 on both sides. After inserting the bolts 6 through the through-holes at the pressure plates 4 and the top of the claw posts 31, tighten the round nuts 7 to connect the pressure plates 4 and the claws 3. The round nuts 7 do not need to be tightened here, ensuring a certain gap between the claw 3 and the pressure plates 4 on both sides. In other words, the claw 3 and the pressure plates 4 are hinged, which makes adjustment easier.
[0041] After passing the bolts 6 through the through holes on the upper part of the pressure plates 4 on both sides and the through holes on the side plates 51 of the cover plate 5 in the same way, the pressure plate 4 and the cover plate 5 are connected by tightening the round nuts 7. The round nuts 7 here also do not need to be tightened to ensure that there is a certain gap between the cover plate 5 and the pressure plates 4 on both sides, that is, the cover plate 5 and the pressure plate 4 are hinged, which also serves to facilitate adjustment.
[0042] Thread the tooling bolt 8 through the threaded hole at the center of the cover plate 5, and hook the claw hooks 32 of the three evenly distributed claws 3 onto the flange-facing end face of the sleeve 2. By continuously tightening the tooling bolt 8, the lower end face of the tooling bolt 8 is brought into contact with the upper end face of the high-speed shaft 1. Continue to turn the tooling bolt 8, and the claws 3 will be subjected to an upward pulling force. Since the claw hooks 32 below the claws 3 are hooked onto the flange of the sleeve 2, continue to turn the bolt 8 until the sleeve 2 is detached from the high-speed shaft 1.
[0043] A total of 6 bolts 6 and 6 round nuts 7 are required.
[0044] Existing methods for removing high-speed shaft sleeves involve heating with electric heating strips or using a flame torch. These methods not only compromise the quality of the high-speed shaft components themselves but also pose safety risks to the operator. The present invention utilizes a purely mechanical removal method, effectively preserving the quality of the high-speed shaft and enabling a single-person operation without risk to the operator.
[0045] The tooling of the utility model can be applied to the removal of high-speed shaft sleeves within a certain size range, without the need to switch the tooling back and forth, and the tooling of the utility model contacts the flange of the sleeve through three claws evenly distributed on the outside, which is more stable and saves time and effort in operation.
[0046] The advantages of this utility model tooling are:
[0047] 1. Simple structure, easy to process and manufacture;
[0048] 2. It has strong versatility and can be applied to the disassembly of high-speed shaft sleeves within a certain range, saving costs; 3. The high-speed shaft sleeve is removed by mechanical disassembly, reducing the risk of quality hazards of the high-speed shaft due to heating production capacity. At the same time, there are no safety hazards in the operation of this tool.
[0049] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in this field. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A disassembly tool for a high-speed shaft sleeve of a wind turbine gearbox, characterized by: The sleeve is installed on the shaft diameter on one side of the high-speed shaft; it has more than two claws, and the claws are composed of claw columns and claw hooks; the outer periphery of the cover plate has a protruding protrusion structure, namely the side plate; the two sides of the side plate are respectively hinged to the pressure plate, and the hinge axis is located at the upper part of the pressure plate; the above-mentioned pressure plate is hinged to the claw column, and the hinge axis is located at the lower part of the pressure plate and the upper part of the claw column; the claw hook of the claw is hooked to the flange downward end face of the sleeve; the tooling bolt is screwed and fits through the threaded hole in the center of the cover plate, and the lower end face of the tooling bolt is against the upper end face of the high-speed shaft.
2. The disassembly tool for the high-speed shaft sleeve of a wind turbine gearbox according to claim 1, characterized in that: After the bolt passes through the corresponding through holes of the pressure plate and the claw column, a round nut is screwed on the bolt, and the bolt is used as a hinge axis to hinge the pressure plate and the claw column; after the bolt passes through the corresponding through holes of the pressure plate and the side plate, a round nut is screwed on the bolt, and the bolt is used as a hinge axis to hinge the pressure plate and the side plate.
3. The disassembly tool for the high-speed shaft sleeve of a wind turbine gearbox according to claim 1, characterized in that: The cover plate has three claws evenly distributed on the circumference, and two side plates are evenly distributed on the circumference of the cover plate, and each side plate corresponds to one claw.
4. The disassembly tool for the high-speed shaft sleeve of a wind turbine gearbox according to claim 1, characterized in that: The through holes on the upper part and the through holes on the lower part of the pressing plate are arranged symmetrically.