Tool for taking out yaw copper sleeve of wind generating set

Abstract

The invention discloses a tool for taking out a yaw copper sleeve of a wind generating set, and belongs to the technical field of wind power maintenance equipment. A wind generating set yaw copper sleeve taking-out tool comprises a base, the outer wall size of the base corresponds to the inner diameter size of a yaw copper sleeve, a center rod is arranged on the base, and a clamping key which is driven by the center rod and used for clamping the inner wall of the yaw copper sleeve is arranged on the side face of the base. The device has the advantages of being simple in structure and easy and convenient to operate.

Description

Technical Field

[0001] The invention relates to the technical field of wind power maintenance equipment, and in particular to a wind power generator set yaw copper sleeve removal tool. Background Art

[0002] The yaw system of a wind turbine is mainly responsible for the nacelle's wind alignment and cable unwinding. Accurate wind alignment can capture more wind energy and ensure the output power of the wind turbine. The yaw system of a wind turbine with a small megawatt unit usually uses a copper sleeve evenly distributed on the outer ring of the yaw bearing, and a friction plate is set under the copper sleeve to provide yaw damping; There is a clearance fit between the copper sleeve and the copper sleeve mounting hole. Under normal circumstances, the copper sleeve is processed with an internal thread A, and the copper sleeve mounting hole is also processed with an internal thread B. The internal thread B is located above the copper sleeve. When in use, the clamping bolt is screwed on the internal thread B to press the copper sleeve downward, and the copper sleeve compresses the friction plate to provide yaw damping (to be precise, a wear-resistant plate is also embedded and installed at the bottom of the copper sleeve, and the wear-resistant plate is in direct contact with the friction plate to reduce the wear of the copper sleeve).

[0003] Under normal production conditions, when the friction plate needs to be replaced, first unscrew the clamping bolt, then use the matching threaded disassembly rod, which engages with the internal thread A, to remove the sleeve upward (pull or lift) from the copper sleeve installation hole. However, as the internal thread A wears, the disassembly rod and the internal thread A are difficult to engage, and it is difficult to conveniently remove the copper sleeve from the copper sleeve installation hole using only the disassembly rod. For this reason, we propose a wind turbine yaw copper sleeve removal tool. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that it is difficult to directly remove the yaw copper sleeve from the sleeve mounting hole after the internal thread of the yaw copper sleeve in the wind turbine in the prior art is worn, and to propose a tool for removing the yaw copper sleeve of the wind turbine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A wind turbine yaw copper sleeve removal tool comprises a base with an outer wall size corresponding to the inner diameter of the yaw copper sleeve, a center rod is arranged on the base, and a key driven by the center rod and used for clamping the inner wall of the yaw copper sleeve is arranged on the side of the base.

[0006] Furthermore, a bottom sink is provided at the bottom of the base, a key hole is provided on the side wall of the bottom sink, and a key is movably inserted into the key hole; A center rod hole is arranged at the top of the bottom sink groove, and a center rod for ejecting a key is detachably arranged inside the center rod hole.

[0007] Furthermore, the central rod comprises a rod body at the top and a frustum at the bottom, and the contact position between the end of the key and the frustum is located in the middle of the frustum.

[0008] Furthermore, one end of the key hole away from the bottom sink is inclined upward.

[0009] Furthermore, the key comprises a key body and an inclined arc surface, and one end of the key body away from the bottom sink groove is provided with an inclined arc surface abutting against the inner wall of the yaw copper sleeve.

[0010] Furthermore, the distance from the top end of the inclined arc surface to the axis of the base is greater than the distance from the bottom end of the inclined arc surface to the axis of the base.

[0011] Furthermore, a bolt hole is provided below the key, the bolt hole is opened on the base, the bolt hole passes through the base downward, and a bottom bolt is provided inside the bolt hole so that the top of the bottom bolt is slidably connected to the key.

[0012] Furthermore, a limiting groove is provided at the bottom of the clamping key, and the top of the bottom bolt is slidably connected to the inner wall of the limiting groove along the axial direction of the clamping key.

[0013] Furthermore, the key hole and the key are polygonal column structures with corresponding sizes.

[0014] Furthermore, a handle is detachably provided on the top of the central rod.

[0015] Compared with the prior art, the present invention provides a wind turbine yaw copper sleeve removal tool, which has the following beneficial effects: The invention discloses a tool for removing a yaw copper sleeve of a wind turbine generator set. When in use, a base is placed in the yaw copper sleeve, and when a center rod is lifted, the center rod pushes out a clamping key outward, and an end of the clamping key away from the center rod is pressed tightly against an inner wall of the yaw copper sleeve, so that the tool and the yaw copper sleeve are self-checked and locked, and then the center rod is continuously lifted to remove the tool and the yaw copper sleeve together from a copper sleeve mounting hole. The invention has a simple structure and is easy to operate.

[0016] Other advantages, objectives and features of the present invention will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention from an upper right perspective; Figure 2 It is a schematic diagram of the overall structure of the present invention from a three-dimensional lower right perspective; Figure 3It is a three-dimensional schematic diagram of the explosion effect of the overall structure of the present invention; Figure 4 It is a three-dimensional schematic diagram of the cross-sectional effect of the base and the center rod of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the magnified effect of the structure of part A in the middle; Figure 6 It is a front view schematic diagram of the cross-sectional effect of the base and the center rod of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure magnification effect of part B in the middle; Figure 8 It is a three-dimensional schematic diagram of the key structure of the present invention; Fig. 9 It is a right side schematic diagram of the key structure of the present invention; Fig.10 It is a top view schematic diagram of the key structure of the present invention; Fig.11 It is a schematic front view of the key structure of the present invention; Fig.12 It is a three-dimensional schematic diagram of the key structure in Example 2 of the present invention.

[0018] In the figure: 1. Base; 101. Center rod hole; 102. Key hole; 103. Bottom groove; 104. Bolt hole; 2. Center rod; 201. Rod body; 202. Block; 203. Cone; 204. Threaded groove; 3. Handle; 4. Key; 401. Key body; 402. Limiting groove; 403. Inclined arc surface; 5. Bottom bolt. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example 1 Reference Figure 1-11 The present invention provides a tool for removing a yaw copper sleeve of a wind turbine generator set, comprising a base 1 whose outer wall size corresponds to the inner diameter size of the yaw copper sleeve. The outer diameter of the base 1 can be slightly smaller than the inner diameter size of the yaw copper sleeve. In fact, it can also be significantly smaller than the inner diameter size of the yaw copper sleeve. It only needs to ensure that the center rod 2 and the key 4 can be stably connected with the yaw copper sleeve. When in use, put the base 1 into the yaw copper sleeve.

[0021] A center rod 2 is installed on the base 1. A key 4 driven by the center rod 2 and used to clamp the inner wall of the yaw copper sleeve is arranged on the side of the base 1. The key 4 is driven by the center rod 2 to clamp the inner wall of the yaw copper sleeve, replacing the traditional threaded connection, and then the copper sleeve can be lifted out of the sleeve mounting hole.

[0022] A bottom groove 103 is processed at the bottom of the base 1, the opening of the bottom groove 103 is downward, a key hole 102 is radially opened on the side wall of the bottom groove 103, and a key 4 is slidably installed in the key hole 102 along the axial direction of the key hole 102; A center rod hole 101 is processed at the top of the bottom sink 103 , and a center rod 2 for ejecting the key 4 is detachably installed inside the center rod hole 101 .

[0023] When in use, when the center rod 2 is not used to push out the key 4, the key 4 shrinks in the key hole 102. At this time, the base 1 is placed in the yaw copper sleeve, and then the center rod 2 is used to push out the key 4, so that the end of the key 4 away from the center rod 2 is pressed against the inner wall of the yaw copper sleeve.

[0024] The center rod 2 includes a rod body 201 at the top and a cone 203 at the bottom. The cone 203 can be small at the top and large at the bottom, or large at the top and small at the bottom. The present application adopts a cone structure with a small top and a large bottom. When the end of the key 4 away from the center rod 2 contacts the inner wall of the yaw copper sleeve, the contact position of the end of the key 4 close to the center rod 2 and the cone 203 is located in the middle of the cone 203. In this way, when the cone 203 moves downward, the key 4 is separated from the inner wall of the yaw copper sleeve, and the tooling can be easily removed from the yaw copper sleeve. When the cone 203 moves upward, the key 4 is clamped on the inner wall of the yaw copper sleeve, which is used to remove the yaw copper sleeve from the copper sleeve mounting hole.

[0025] The end of the key hole 102 away from the bottom sink 103 is inclined upward. The key hole 102 can be set horizontally, or can be set inclined upward, or inclined downward. In this application, the key hole 102 is set inclined upward, such as Figure 4-7 As shown, the card key 4 is also arranged tilted upward.

[0026] When the key hole 102 and the key 4 are both tilted upward, when the center rod 2 pushes the key 4 outward, the force between the key 4 and the yaw copper sleeve is mainly an upward force. When the center rod 2 is used to squeeze the key 4, compared with the horizontal key 4, the tilted upward key 4 can be more easily engraved into the yaw copper sleeve.

[0027] The key 4 includes a key body 401 and an inclined arc surface 403. The end of the key body 401 away from the bottom groove 103 is provided with an inclined arc surface 403 that abuts against the inner wall of the yaw copper sleeve. Here, the inclined arc surface means that the inclined arc surface 403 has a certain angle (non-parallel relationship) with the inner wall of the yaw copper sleeve in the vertical direction, which makes it easier for the top of the inclined arc surface 403 to be engraved into the yaw copper sleeve and the yaw copper sleeve can be clamped more stably.

[0028] The distance from the top end of the inclined arc surface 403 to the axis of the base 1 is greater than the distance from the bottom end of the inclined arc surface 403 to the axis of the base 1 .

[0029] Specifically, the inclined arc surface 403 is also a conical arc surface, and the overall shape of the conical arc surface is larger at the top and smaller at the bottom. In this case, when the inclined arc surface 403 as a whole does not exceed the key hole 102, the base 1 can easily enter the yaw copper sleeve. Figure 7 When it is in the position shown, gently shake the center rod 2, and the base 1 can also easily enter the yaw copper sleeve. When the bottom end of the inclined arc surface 403 also exceeds the key hole 102, press the center rod 2 downward and shake it gently. Shake the entire tool through the center rod 2, and then the key body 401 automatically slides downward under the shaking action and gravity, and slides into the inside of the key hole 102, so that the bottom end of the inclined arc surface 403 returns to the key hole 102, so that the base 1 can still easily enter the yaw copper sleeve.

[0030] Here, the height of the cone 203 is not greater than the height (depth) of the bottom groove 103. At the same time, the height of the outer wall of the key hole 102 is also lower than the inner wall height of the yaw copper sleeve, so that the key 4 can stably clamp the yaw copper sleeve.

[0031] In this case, the angle between the two surfaces (the outer circular side wall surface and the inclined arc surface) of the edge of the key body 401 located at the top of the inclined arc surface 403 is an acute angle, which is sharper, making it easier for the edge of the top of the inclined arc surface 403 to be engraved into the yaw copper sleeve.

[0032] A clamping block 202 is welded and fixed at the connection between the cone 203 and the rod body 201. The radial dimension of the clamping block 202 is smaller than the radial dimension of the bottom groove 103 and larger than the radial dimension of the center rod hole 101, so as to prevent the cone 203 from directly colliding with the bottom edge of the center rod hole 101.

[0033] A bolt hole 104 is processed below the key 4. The bolt hole 104 is opened on the base 1. The bolt hole 104 penetrates the base 1 downward. A bottom bolt 5 is installed inside the bolt hole 104 so that the top of the bottom bolt 5 is slidably connected to the key 4. The key 4 is limited by the bottom bolt 5, so that when the key 4 slides in the key hole 102, it can have a certain sliding range, but will not slide out of the key hole 102.

[0034] The bolt tail of the bottom bolt 5 can be located outside the base 1 to support the base 1, so that after the tool is inserted into the yaw copper sleeve, the frustum 203 has sufficient descending space in the bottom sink 103.

[0035] A limiting groove 402 is processed at the bottom of the key 4, and the top of the bottom bolt 5 is slidably connected to the inner wall of the limiting groove 402 along the axial direction of the key 4 (or a gap is provided between the top of the bottom bolt 5 and the inner wall of the limiting groove 402), the axial length of the limiting groove 402 is smaller than the axial length of the key 4, and a part of the top of the bottom bolt 5 is located in the limiting groove 402, so as to prevent the key 4 from sliding out of the key hole 102 when sliding downward, or being taken out of the key hole 102 upward.

[0036] A handle 3 is detachably mounted on the top of the center rod 2 . The handle 3 may be a structure formed by welding a horizontal rod and a vertical rod. A threaded groove 204 is provided on the top of the rod body 201 . The vertical rod and the threaded groove 204 are screwed together.

[0037] When using the handle 3 to operate the tool, the handle 3 can be used to operate the tool in the vertical direction, upward or downward, and the handle 3 can also be rotated in the horizontal direction, in the direction of tightening between the threaded groove 204 and the vertical rod, so that the edge of the top of the inclined arc surface 403 can form a horizontal scratch on the inner wall of the yaw copper sleeve, thereby increasing the contact area with the inner wall of the yaw copper sleeve and further increasing the clamping degree. It is suitable for the situation where the yaw copper sleeve is slightly deformed and cannot be gently pulled out.

[0038] Example 2 Reference Fig.12 The present invention provides a wind turbine yaw copper sleeve removal tool. The difference between this embodiment and embodiment 1 is that the key hole 102 and the key 4 are polygonal prism structures with corresponding sizes. The key hole 102 and the key 4 can be cylindrical structures or polygonal prism structures, such as Fig.12 The key 4 shown is a quadrangular prism structure. When the key 4 and the key hole 102 are multi-prism structures, the key 4 will not rotate radially in the key hole 102, so that Figure 7 The top of the inclined arc surface 403 is always facing upward.

[0039] Working principle: Before use, install the key body 401 into the key hole 102, screw on the bottom bolt 5, pass the rod body 201 through the center rod hole 101, so that the cone 203 is located in the bottom sink 103, and then install the handle 3 on the center rod 2; When in use, the base 1 is placed into the yaw copper sleeve through the handle 3, so that the key 4 is completely located inside the yaw copper sleeve, and then the handle 3 and the center rod 2 are lifted upward to drive the cone 203 to squeeze the key 4 outward so that the inclined arc surface 403 is stuck on the inner wall of the yaw copper sleeve, and then the tooling is continued to be lifted upward to lift the yaw copper sleeve out of the copper sleeve mounting hole.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0042] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A wind turbine yaw copper sleeve removal tool, characterized in that: The invention comprises a base (1) whose outer wall size corresponds to the inner diameter size of the yaw copper sleeve, the base (1) being provided with a center rod (2), and the side of the base (1) being provided with a clamping key (4) driven by the center rod (2) and used for clamping the inner wall of the yaw copper sleeve.

2. A wind turbine yaw copper sleeve removal tool according to claim 1, characterized in that: The bottom of the base (1) is provided with a bottom sink groove (103), a side wall of the bottom sink groove (103) is provided with a key hole (102), and a key (4) is movably inserted into the key hole (102); A center rod hole (101) is provided at the top of the bottom sink groove (103), and a center rod (2) for ejecting a key (4) is detachably provided inside the center rod hole (101).

3. A wind turbine yaw copper sleeve removal tool according to claim 2, characterized in that: The central rod (2) comprises a rod body (201) located at the top and a frustum (203) located at the bottom, and the contact position between the end of the key (4) and the frustum (203) is located in the middle of the frustum (203).

4. A wind turbine yaw copper sleeve removal tool according to claim 2, characterized in that: One end of the key hole (102) away from the bottom sink (103) is inclined upward.

5. The wind turbine generator set yaw copper sleeve removal tool according to claim 2, characterized in that: The key (4) comprises a key body (401) and an inclined arc surface (403); one end of the key body (401) away from the bottom sink groove (103) is provided with an inclined arc surface (403) that abuts against the inner wall of the yaw copper sleeve.

6. A wind turbine yaw copper sleeve removal tool according to claim 5, characterized in that: The distance between the top end of the inclined arc surface (403) and the axis of the base (1) is greater than the distance between the bottom end of the inclined arc surface (403) and the axis of the base (1).

7. The wind turbine generator set yaw copper sleeve removal tool according to claim 2, characterized in that: A bolt hole (104) is provided below the latch key (4). The bolt hole (104) is opened on the base (1). The bolt hole (104) passes through the base (1) downward. A bottom bolt (5) is provided inside the bolt hole (104), so that the top of the bottom bolt (5) is slidably connected to the latch key (4).

8. A wind turbine yaw copper sleeve removal tool according to claim 7, characterized in that: A limiting groove (402) is provided at the bottom of the clamping key (4), and the top of the bottom bolt (5) is slidably connected to the inner wall of the limiting groove (402) along the axial direction of the clamping key (4).

9. The wind turbine generator set yaw copper sleeve removal tool according to claim 2, characterized in that: The key hole (102) and the key (4) are polygonal column structures with corresponding sizes.

10. The wind turbine generator set yaw copper sleeve removal tool according to claim 1, characterized in that: A detachable handle (3) is provided on the top of the central rod (2).

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