A yaw motor dismounting tool

Abstract

The application discloses a yaw motor dismounting tool and relates to the technical field of yaw motor dismounting. Two arc-shaped positioning clamping bases which are identical in structure and symmetrically arranged are provided with connecting flanges fixedly arranged at two ends, threaded holes are formed in the connecting flanges, and the connecting flanges at the same end of the two arc-shaped positioning clamping bases are fixedly connected through bolts penetrating the threaded holes. Vertical supports are fixedly connected to the top of the arc-shaped positioning clamping base, the top of the two vertical supports is fixedly connected through a horizontal cross beam, and the horizontal cross beam is rotationally connected to the bottom of the top shaft screw rod of the two claw pullers. The yaw motor dismounting tool can quickly dismount the rusted and adhered yaw motor and the speed reducer, and improves work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the yaw motor dismounting technical field, particularly to a yaw motor dismounting tool. BACKGROUND

[0002] Wind energy is a kind of renewable clean energy, and using wind energy to generate electricity has been widely applied in various industries. Wind turbines can be divided into horizontal axis wind turbines and vertical axis wind turbines according to different main shaft installation methods. At present, most wind turbines are horizontal axis wind turbines.

[0003] The existing horizontal axis wind turbines generally install yaw mechanisms, which include yaw motors and reducers installed in the housings, and a rotating assembly connected to the reducer. The rotating assembly can rotate around the tower shaft under the drive of the yaw motor. When encountering severe weather such as strong winds, strong gusts, and strong typhoons, the yaw motor can drive the generator and the wind blade to automatically yaw, thereby avoiding damage to the wind turbine caused by severe weather. Since the yaw mechanism works in a harsh environment, it is prone to rust. After a long time, the yaw motor and the reducer are prone to rust and stick together, making it difficult to separate them. When overhauling or replacing, the yaw motor and the reducer are difficult to disassemble. SUMMARY

[0004] The purpose of the present application is to provide a yaw motor dismounting tool to solve the problems existing in the prior art, which can quickly disassemble the rusted and stuck yaw motor and reducer, and improve work efficiency.

[0005] To achieve the above purpose, the present application provides the following solutions:

[0006] The present application provides a yaw motor dismounting tool, which comprises two arc-shaped positioning seats with the same structure and symmetrical arrangement. The two arc-shaped positioning seats are fixedly provided with connecting flanges at both ends. Threaded holes are formed in the connecting flanges. The connecting flanges at the same end of the two arc-shaped positioning seats are fixedly connected by bolts threaded into the threaded holes. Vertical supports are fixedly connected to the top of the arc-shaped positioning seats. The top of the two vertical supports is fixedly connected by a horizontal beam. The horizontal beam is rotatably connected to the bottom of the top shaft screw of the two claw draw bars. In operation, the two arc-shaped positioning seats are sleeved at the connection position of the yaw motor and the reducer, and are tightened by bolts. Then the two claw draw bars are used to pull the yaw motor. The strong pulling force can quickly separate the yaw motor and the reducer, thereby achieving quick disassembly.

[0007] Optionally, the inner side of the arc-shaped positioning seat is a smooth inclined surface structure inclined downward. The top width of the arc-shaped positioning seat is smaller than the bottom width of the arc-shaped positioning seat.

[0008] Optionally, the arc-shaped positioning clamping seat and the connecting flange are integrally formed.

[0009] Optionally, a threaded hole is formed at the top of the arc-shaped positioning clamping seat, and an external thread is arranged at the bottom of the vertical support; the vertical support is fixedly connected to the threaded hole through a threaded connection.

[0010] Optionally, a top-open limiting cylinder is fixedly connected to the bottom of the horizontal cross beam, and the top shaft screw rod of the two claw pullers is rotatably inserted into the limiting cylinder.

[0011] Optionally, the two claw pullers comprise a supporting cross beam, a top shaft screw rod, and two claw pullers; the top shaft screw rod penetrates through the supporting cross beam and is threadedly connected to the supporting cross beam through a threaded hole formed in the middle part of the supporting cross beam; the two claw pullers are respectively slidably sleeved on the supporting cross beam on both sides of the threaded hole; an auxiliary handle is arranged at the top end of the top shaft screw rod, the auxiliary handle penetrates through a hexagonal nut at the top end of the top shaft screw rod and is perpendicular to the central axis of the top shaft screw rod; and a fixed tip is arranged at the bottom end of the top shaft screw rod.

[0012] Optionally, the two claw pullers are identical in structure, and two protrusions are arranged at the middle part of the length direction of the claw pullers; the two protrusions are symmetrically arranged, and a limiting hole is formed in each of the two protrusions; and a limiting screw rod is arranged between the corresponding limiting holes of the two claw pullers.

[0013] Optionally, the limiting screw rod is a partially threaded screw rod.

[0014] Optionally, the auxiliary handle is detachably inserted into a handle insertion hole formed in the hexagonal nut.

[0015] Optionally, the arc-shaped positioning clamping seat and the vertical support are fixedly connected through riveting or welding.

[0016] The present application has the following technical effects compared with the prior art:

[0017] The present application has the following technical effects compared with the prior art: BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 The sectional structure diagram of the vertical support position of the yaw motor dismounting tool of the present application;

[0020] Figure 2 The top view schematic diagram of the arc-shaped positioning clamping seat of the present application;

[0021] Figure 3 The side view schematic diagram of the arc-shaped surface side of the arc-shaped positioning clamping seat of the present application;

[0022] The figure mark explanation: 100, yaw motor dismounting tool; 1, arc-shaped positioning clamping seat; 101, inclined surface structure; 2, connecting flange; 3, bolt; 4, vertical support; 5, horizontal cross beam; 6, top shaft screw rod; 7, threaded hole; 8, limiting cylinder; 9, supporting cross beam; 10, pull claw; 11, auxiliary rotating handle; 12, hexagonal nut; 13, fixed pointed end; 14, distance limiting through hole; 15, distance limiting screw rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0024] The purpose of the present application is to provide a yaw motor dismounting tool to solve the problems in the prior art, which can quickly dismount the rusted and adhered yaw motor and speed reducer, and improve the work efficiency.

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0026] Embodiment one

[0027] As Figure 1 , Figure 2 and Figure 3As shown, the yaw motor dismounting tool 100 provided by the present application comprises two arc-shaped positioning clamping bases 1 which are identical in structure and symmetrically arranged, a connecting flange 2 is fixedly arranged at both ends of the arc-shaped positioning clamping base 1, a threaded through hole is formed in the connecting flange 2, the connecting flanges 2 at the same end of the two arc-shaped positioning clamping bases 1 are fixedly connected by means of a bolt 3 which is threaded in the threaded through hole, the inner side of the arc-shaped positioning clamping base 1 is a smooth inclined surface structure 101 which is arranged in an inclined downward manner, the width dimension of the top of the arc-shaped positioning clamping base 1 is smaller than the width dimension of the bottom of the arc-shaped positioning clamping base 1, so that a protruding tip is formed at the bottom of the inclined surface structure 101; a vertical support 4 is fixedly connected to the top of the arc-shaped positioning clamping base 1, the tops of the two vertical supports 4 are fixedly connected by means of a horizontal cross beam 5, and the horizontal cross beam 5 is rotatably connected to the bottom of a top shaft screw rod 6 of a two-jaw puller.

[0028] Further preferably, the arc-shaped positioning clamping base 1 and the connecting flange 2 are integrally formed. A threaded hole 7 is formed in the top of the arc-shaped positioning clamping base 1, and an outer thread is arranged at the bottom of the vertical support 4, and the vertical support 4 is fixedly connected to the threaded hole 7 by means of the thread.

[0029] A top-opening limiting cylinder 8 is fixedly connected to the bottom of the horizontal cross beam 5, and the bottom of the top shaft screw rod 6 of the two-jaw puller is rotatably inserted into the limiting cylinder 8. The two-jaw puller comprises a supporting cross beam 9, the top shaft screw rod 6 and two puller claws 10, the top shaft screw rod 6 penetrates through the supporting cross beam 9 and is threadedly connected to the supporting cross beam 9 by means of a threaded hole formed in the middle part of the supporting cross beam 9; the two puller claws 10 are respectively slidably sleeved on the supporting cross beam 9 at both sides of the threaded hole; an auxiliary handle 11 is arranged at the top end of the top shaft screw rod 6, the auxiliary handle 11 penetrates through a hexagonal nut 12 at the top end of the top shaft screw rod 6 and is perpendicular to the central axis of the top shaft screw rod 6; a fixed tip 13 is arranged at the bottom end of the top shaft screw rod 6, a positioning small hole is formed at the bottom center position of the limiting cylinder 8, and the fixed tip 13 can rotate in the positioning small hole. The two puller claws 10 are identical in structure, two protrusions are arranged at the middle part of the length direction of the puller claws 10, the two protrusions are symmetrically arranged, distance-limiting through holes 14 are respectively formed in the two protrusions, and a distance-limiting screw rod 15 is assembled between the corresponding distance-limiting through holes 14 of the two puller claws 10. The distance-limiting screw rod 15 is a screw rod with partial thread. The auxiliary handle 11 is detachably inserted into a handle insertion hole formed in the hexagonal nut 12.

[0030] In operation, the two arc-shaped positioning clamping bases 1 are sleeved outside the yaw motor and the speed reducer, the bolts 3 are tightened, the two arc-shaped positioning clamping bases 1 are moved towards the yaw motor and the speed reducer, the bottom tip of the inclined surface structure 101 at the inner side of the arc-shaped positioning clamping base 1 can be partially inserted into the joint at the connection between the yaw motor and the speed reducer, the relative movement of the two arc-shaped positioning clamping bases 1 can be realized by tightening the bolts 3, the gap at the joint is increased, the yaw motor and the speed reducer are slightly separated, and the arc-shaped positioning clamping base 1 is fixed at the joint position, then the yaw motor is fixed and clamped by the two jaw pullers, the auxiliary handle 11 is rotated, the top shaft screw rod 6 is driven to rotate in the limiting cylinder 8, the support beam 9 connected with the top shaft screw rod 6 by screwing is driven to move upwards on the top shaft screw rod 6, the two jaw pullers and the yaw motor are driven to move upwards, the yaw motor above the speed reducer is further pulled, the yaw motor and the speed reducer can be quickly separated, and the disassembly is completed. The auxiliary handle 11 is installed at the top end of the top shaft screw rod 6, which greatly facilitates the maintenance operation in a small space during use. In addition, the bottom end of the top shaft screw rod 6 is designed as a sharp tip, the bottom end of the top shaft screw rod 6 is fixed in the positioning hole at the bottom of the limiting cylinder 8 during use, the uniform stress of the two jaw pullers 10 is ensured, and damage of the jaw pullers 10 caused by uneven stress is effectively avoided.

[0031] Example two

[0032] The present embodiment is a further improvement based on the embodiment one, in the present embodiment, the arc-shaped positioning clamping base 1 and the vertical support 4 are fixedly connected in a riveting or welding manner, so that the connection is more firm.

[0033] In the description of the present application, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] The principles and implementation modes of the present application are described by applying specific examples in the present application, the above examples are only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In view of the above, the content of the specification should not be understood as limiting the present application.

Claims

1. A yaw motor disassembly tool, characterized by: The two ends of the support leg are fixed with a bolt, and the bolt has a round shank to contact with the two ends of the support leg, and the bolt has a round shank to contact with the two ends of the support leg.

2. The yaw motor disassembly tool according to claim 1, characterized in that: The arc-shaped positioning seat and the connecting flange are an integrally formed structure.

3. The yaw motor disassembly tool according to claim 1, characterized in that: A threaded hole is provided on the top of the arc-shaped positioning seat, an external thread is provided on the bottom of the vertical bracket, and the vertical bracket is fixedly connected to the threaded hole through threads.

4. The yaw motor disassembly tool according to claim 1, characterized in that: The two-jaw puller includes a supporting beam, a top shaft screw and two pulling claws, the top shaft screw passes through the supporting beam and is threadedly engaged with the supporting beam through a threaded hole opened in the middle part of the supporting beam; the two pulling claws are slidably mounted on the supporting beam on both sides of the threaded hole; the top end of the top shaft screw is provided with an auxiliary rotating handle, the auxiliary rotating handle passes through the hexagonal nut at the top end of the top shaft screw and is perpendicular to the central axis of the top shaft screw; the bottom end of the top shaft screw is provided with a fixed tip.

5. The yaw motor disassembly tool according to claim 4, characterized in that: The two pulling claws have the same structure, and two protrusions are provided in the middle part of the length direction. The two protrusions are symmetrically arranged and have limited distance through holes respectively opened thereon; a limited distance screw is assembled between the corresponding limited distance through holes on the two pulling claws.

6. The yaw motor disassembly tool according to claim 5, characterized in that: The limited-pitch screw is a screw with partial threads.

7. The yaw motor disassembly tool according to claim 5, characterized in that: The auxiliary rotating handle is inserted into the rotating handle insertion hole provided on the hexagonal nut in a detachable connection manner.

8. The yaw motor disassembly tool according to claim 1, characterized in that: The arc-shaped positioning holder and the vertical bracket are fixedly connected by riveting or welding.

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