Yaw gear ring positioning device

Abstract

The utility model discloses a yaw gear ring positioning device which comprises at least three supporting units, each supporting unit comprises a supporting block, the supporting blocks are connected with positioning blocks capable of moving in the radial direction, and the positioning blocks are arranged on the radial outer sides of the supporting blocks. The radial outer side of the positioning block is provided with a positioning part for positioning according to a front rack spigot, and the positioning block is further provided with an adjusting piece capable of moving in the radial direction. By designing the supporting block and the adjusting piece capable of moving in the radial direction of the positioning block, quick installation and adjustment of the yaw gear ring are achieved, the device can be suitable for installation of yaw gear rings of different power levels, certain universality is achieved, meanwhile, the device is simple in structure and safe and quick to operate, and the installation efficiency of the yaw gear ring is remarkably improved.

Description

Technical Field

[0001] The utility model relates to a yaw gear ring positioning device, belonging to the technical field of wind power generators. Background Art

[0002] At present, there are two main transmission forms for the yaw bearing in the yaw system of a wind turbine generator set, one is the transmission form using rolling bearings, and the other is the transmission form using sliding structures. The main features of the sliding yaw system are simple structure and high reliability. However, during the assembly process of the yaw system with this transmission form, the gap between the side friction plate and the inner side of the yaw gear ring must be precisely adjusted to be within a reasonable range.

[0003] The existing method for adjusting the clearance is: first fix the side friction plate on the side bearing, hoist the main frame on the yaw gear ring and connect it with the yaw gear ring and the side bearing, then use a feeler gauge to measure the clearance between the side friction plate and the inner side of the yaw gear ring. When it is not within the required range, it is necessary to loosen the connecting bolts between the side bearing and the main frame, fine-tune the side bearing, so that the clearance between the side friction plate and the inner side of the yaw gear ring is within the required range, and then tighten the connecting bolts. Use the same method to adjust each side bearing. This method is not only time-consuming, but also cannot guarantee the coaxiality of each side bearing when the cabin is yawed, so that each side sliding pad wears unevenly, causing the cabin to move, resulting in fatigue wear and broken teeth of the yaw drive and the yaw gear ring. Utility Model Content

[0004] The purpose of the utility model is to provide a yaw gear ring positioning device in view of the above-mentioned problems, which is safe and efficient during installation operation and can greatly improve the installation accuracy and efficiency of the yaw gear ring.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A yaw gear ring positioning device comprises at least three supporting units, wherein the supporting unit comprises a supporting block, wherein the supporting block is connected with a radially movable positioning block, wherein the positioning block is arranged on the radial outer side of the supporting block, wherein a positioning portion for positioning according to a stop of a front frame is arranged on the radial outer side of the positioning block, and wherein the positioning block is also provided with a radially movable adjusting member.

[0007] Optionally, a mounting hole is provided on the support block.

[0008] Optionally, the support block and the positioning block are connected by a positioning adjustment bolt, and the support block is provided with a first threaded hole matching the positioning adjustment bolt; a fixing portion is provided on the inner side of the positioning block, and a first positioning hole is provided on the fixing portion, and a limiting portion is provided on the outer side of the positioning block, and the screw rod of the positioning adjustment bolt contacts the limiting portion after passing through the first threaded hole and the first positioning hole.

[0009] Optionally, the positioning adjustment bolt is provided with a limit nut, and the limit nut is arranged on the radial inner side of the first threaded hole; and / or, the positioning adjustment bolt is provided with a locking nut, and the locking nut is arranged on the radial outer side of the first positioning hole.

[0010] Optionally, an upwardly penetrating adjustment slot is provided between the fixing portion and the limiting portion.

[0011] Optionally, the adjustment member is an axis adjustment bolt that passes through the support block and the positioning block radially from the inside to the outside, the positioning block is provided with a second threaded hole that matches the axis adjustment bolt, and the support block is provided with a second positioning hole.

[0012] Optionally, the positioning portion is a convex portion provided at the lower portion of the positioning block.

[0013] Optionally, the outer end surfaces of the positioning block and the positioning portion are both arc surfaces and are coaxial.

[0014] Optionally, a handle is provided on the positioning block.

[0015] Optionally, a storage hole is provided on the positioning block.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a yaw gear ring positioning device, which realizes the rapid installation and adjustment of the yaw gear ring by designing a support block and an adjustment member that can move radially along the positioning block. It can be applied to the installation of yaw gear rings of different power levels and has a certain degree of versatility. At the same time, the device has a simple structure, safe and fast operation, and significantly improves the installation efficiency of the yaw gear ring.

[0018] 2. The utility model provides a yaw gear ring positioning device, which can quickly adjust the installation clearance between the yaw gear ring and the positioning block to meet the requirements by adjusting the bolt, thereby solving the problem of quickly adjusting the installation of the yaw gear ring to be coaxial with the nacelle rotation axis. The operation is safe and the installation accuracy and efficiency of the yaw gear ring are greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the support unit.

[0020] Figure 2This is a partial installation diagram of the support unit. Figure 1 .

[0021] Figure 3 This is a partial installation diagram of the support unit. Figure 2 .

[0022] Figure 4 It is the overall installation diagram of the support unit.

[0023] Markings in the figure: 1-support block, 2-positioning block, 21-positioning part, 22-fixing part, 23-limiting part, 24-adjustment slot, 25-handle, 26-storage hole, 27-gasket slot, 3-adjustment piece, 4-positioning adjustment bolt, 5-limiting nut, 6-locking nut, 7-support block locking bolt. DETAILED DESCRIPTION

[0024] The utility model is described in detail below in conjunction with the accompanying drawings.

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] A yaw gear ring positioning device, such as Figure 1-Figure 4 As shown, it includes at least three support units, and the support unit includes a support block 1, and the support block 1 is connected to a radially movable positioning block 2, and the positioning block 2 is arranged on the radial outer side of the support block 1. The radial outer side of the positioning block 2 is provided with a positioning portion 21 for positioning according to the stop of the front frame, and the positioning block 2 is also provided with a radially movable adjustment member 3.

[0027] Among them, by fixing the relative positions of at least three support units, the circle can be supported stably, and the overall deformation caused by the displacement or deformation of a single support unit can be avoided. Preferably, the three-point fixation can accurately position the workpiece, avoid movement and vibration during the processing, reduce errors, and no additional fixtures and equipment are required, which reduces costs. Further, the three support units are arranged at the corners of the equilateral triangle of the circle, so that the distance between the center of the circle and the three support units is equal, which is convenient for precise adjustment and ensures the accuracy of the position and shape of the circle. The support block 1 is fixedly arranged on the front frame, so that the overall positioning device can be installed and supported. The positioning portion 21 is tightly attached to the inner diameter of the stop of the front frame, and is positioned according to the stop of the front frame, and can be adjusted according to the position of the front frame through the radially movable positioning block 2. The adjustment member 3 is used to adjust the gap between the outer diameter of the stop of the yaw gear ring and the positioning block 2 to meet the requirements, so as to ensure the coaxiality between the yaw gear ring and the positioning block 2, and then ensure that the yaw gear ring is coaxial with the yaw rotation axis of the cabin. Furthermore, the positioning block 2 is detachably connected to the supporting block 1, and positioning blocks 2 of different sizes can be adapted to yaw gear rings of different power levels.

[0028] As another specific implementation, a mounting hole is provided on the support block 1. The support block 1 is fixed to the threaded hole of the front frame body by the support block locking bolt 7, so as to limit the support block 1 along the axis and radial direction.

[0029] As another specific embodiment, the support block 1 and the positioning block 2 are connected by a positioning adjustment bolt 4, and the support block 1 is provided with a first threaded hole matching the positioning adjustment bolt 4; the inner side of the positioning block 2 is provided with a fixing portion 22, and the fixing portion 22 is provided with a first positioning hole, and the outer side of the positioning block 2 is provided with a limiting portion 23, and the screw of the positioning adjustment bolt 4 passes through the first threaded hole and the first positioning hole and contacts the limiting portion 23. The positioning adjustment bolt 4 can be quickly installed and disassembled through the thread, and can provide the flexibility of fine-tuning the distance between the support block 1 and the positioning block 2, so that the positioning portion 21 is tightly attached to the inner diameter of the front frame, and the coaxiality of the two can be ensured.

[0030] As another specific embodiment, the positioning adjustment bolt 4 is provided with a limit nut 5, and the limit nut 5 is arranged on the radial inner side of the first threaded hole; and / or, the positioning adjustment bolt 4 is provided with a locking nut 6, and the locking nut 6 is arranged on the radial outer side of the first positioning hole. The position of the adjustment bolt can be fixed, and the positioning block 2 is completely locked to ensure that the relative position with the support block 1 is fixed. Further, the positioning adjustment bolt 4 includes two arranged on both sides of the circumference, and the first positioning hole can be an oblong hole for simultaneously passing the two positioning adjustment bolts 4.

[0031] As another specific embodiment, an upwardly penetrating adjustment slot 24 is provided between the fixing portion 22 and the limiting portion 23. The locking nut 6 can be adjusted through the adjustment slot 24, and the connection between the fixing portion 22 and the limiting portion 23 on both sides can ensure the strength of the positioning block 2.

[0032] As another specific embodiment, the adjustment member 3 is an axis adjustment bolt that passes through the support block 1 and the positioning block 2 radially from the inside to the outside, the positioning block 2 is provided with a second threaded hole that matches the axis adjustment bolt, and the support block 1 is provided with a second positioning hole. By adjusting the axis adjustment bolt, the yaw gear ring can be adjusted to be coaxial with the yaw rotation center of the cabin. Specifically, the second threaded hole axially positions the axis adjustment bolt, and the second positioning hole radially positions the axis adjustment bolt. Furthermore, when the first positioning hole is an oblong hole, the axis adjustment bolt passes through the second positioning hole, the first positioning hole and the second threaded hole in sequence. Optionally, a solution in which a second threaded hole matching the axis adjustment bolt is provided on the support block 1, and a second positioning hole is provided on the positioning block 2 may also be adopted.

[0033] As another specific embodiment, the positioning portion 21 is a convex portion provided at the bottom of the positioning block 2. Since the inner diameter of the front frame is larger than the yaw gear ring, and the front frame is provided below the yaw gear ring, the convex portion provided at the bottom of the positioning block 2 can prevent structural interference with the yaw gear ring when the front frame is closely positioned. Furthermore, the convex portion includes two convex portions, which are respectively provided at the left and right ends of the positioning block 2, and a gasket groove 27 for placing a gasket is provided between the two positioning portions 21.

[0034] As another specific implementation, the outer end surfaces of the positioning block 2 and the positioning portion 21 are both arcuate and coaxial. Specifically, the arcuate outer end surfaces of the positioning block 2 and the positioning portion 21 are coaxial with the inner diameter of the front frame, which can ensure positioning fit, so that the positioning block 2 is coaxial with the yaw rotation center of the cabin, and then ensure that the yaw gear ring is coaxial with the yaw rotation center of the cabin.

[0035] As another specific embodiment, a handle 25 is provided on the positioning block 2. The handle 25 can facilitate installation and removal of the tooling.

[0036] As another specific embodiment, the positioning block 2 is provided with a storage hole 26. The storage hole 26 can be used to store the support block locking bolt 7 when the tooling is idle.

[0037] The working process of the yaw gear ring positioning device provided in this embodiment is as follows:

[0038] Step 1: Turn the front frame over so that the bottom is facing upward, that is, the contact surface with the yaw gear ring is facing upward, and hoist it to the assembly table, and install the gasket as required.

[0039] Step 2: Install the support unit as a whole on the front frame, and use 3 sets evenly distributed around the circumference. The support block 1 is fixed to the front frame by the support block locking bolt 7 to prevent the support unit from sliding.

[0040] Step 3: The positioning block 2 is connected to the support block 1 through the positioning adjustment bolt 4, and the axis adjustment bolt is adjusted so that it does not protrude from the positioning block 2 to prevent interference with the yaw gear ring during installation.

[0041] Step 4: Tighten the two adjusting bolts of the positioning block 2 to make the positioning portion 21 at the bottom of the positioning block 2 completely fit with the inner diameter stop of the front frame. All three sets of support units need to be adjusted to ensure that the coaxiality of each positioning block 2 and the front frame meets the requirements.

[0042] Step 5: Completely tighten the limit nuts 5 and locking nuts 6 at all locations to ensure that the support block 1 and the positioning block 2 are fixed as a whole.

[0043] Step 6: Hoist the yaw gear ring onto the front frame, and adjust the installation clearances between the positioning block 2 and the yaw gear ring at three locations through the axis adjustment bolts to ensure the coaxiality of the positioning block 2 and the yaw gear ring.

[0044] Step 7: Install the brake and fixing bolts to complete the installation of the yaw gear ring. During this process, the yaw gear ring positioning device needs to remain locked.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The present invention is extended to any new features or any new combination disclosed in this specification, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

[0046] In the description of the embodiments of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0047] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

Claims

1. A yaw gear ring positioning device, characterized in that: The invention comprises at least three support units, wherein the support unit comprises a support block (1), the support block (1) is connected to a radially movable positioning block (2), the positioning block (2) is arranged on the radial outer side of the support block (1), a positioning portion (21) is arranged on the radial outer side of the positioning block (2) for positioning according to the stop of the front frame, and the positioning block (2) is also provided with a radially movable adjustment member (3).

2. The yaw gear ring positioning device according to claim 1, characterized in that: The support block (1) is provided with a mounting hole.

3. The yaw gear ring positioning device according to claim 1, characterized in that: The support block (1) and the positioning block (2) are connected via a positioning adjustment bolt (4); the support block (1) is provided with a first threaded hole matching the positioning adjustment bolt (4); a fixing portion (22) is provided on the inner side of the positioning block (2); a first positioning hole is provided on the fixing portion (22); a limiting portion (23) is provided on the outer side of the positioning block (2); and a screw rod of the positioning adjustment bolt (4) contacts the limiting portion (23) after passing through the first threaded hole and the first positioning hole.

4. The yaw gear ring positioning device according to claim 3, characterized in that: The positioning adjustment bolt (4) is provided with a limiting nut (5), and the limiting nut (5) is arranged on the radial inner side of the first threaded hole; and / or the positioning adjustment bolt (4) is provided with a locking nut (6), and the locking nut (6) is arranged on the radial outer side of the first positioning hole.

5. The yaw gear ring positioning device according to claim 3, characterized in that: An upwardly penetrating adjustment slot (24) is provided between the fixing portion (22) and the limiting portion (23).

6. The yaw gear ring positioning device according to claim 1, characterized in that: The adjusting member (3) is an axis adjusting bolt which passes through the supporting block (1) and the positioning block (2) from the inside to the outside in a radial direction; the positioning block (2) is provided with a second threaded hole which matches the axis adjusting bolt; and the supporting block (1) is provided with a second positioning hole.

7. The yaw gear ring positioning device according to claim 1, characterized in that: The positioning portion (21) is a convex portion provided at the lower part of the positioning block (2).

8. The yaw gear ring positioning device according to claim 7, characterized in that: The outer end surfaces of the positioning block (2) and the positioning portion (21) are both arc surfaces and are coaxial.

9. The yaw gear ring positioning device according to claim 1, characterized in that: The positioning block (2) is provided with a handle (25).

10. The yaw gear ring positioning device according to claim 1, characterized in that: The positioning block (2) is provided with a storage hole (26).

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