Damper taking-out device

Abstract

The utility model relates to a damper taking-out device which comprises a screw rod, a screw rod and a screw rod, the nut is in threaded connection with the screw rod so as to linearly move along the screw rod; the fixing device is used for fixing the screw rod so as to prevent the screw rod from rotating together with the nut; and the support is provided with a supporting face, the supporting face is arranged on the movement path of the nut, and the nut rotates in situ after making contact with the supporting face so that the screw can drive the damper to linearly move in the direction opposite to the movement direction of the nut. One end of the screw is in threaded connection with the threaded hole of the damper, the nut is connected to the screw in a sleeving mode to move along the screw, the nut moves downwards to make contact with the supporting face of the support and then continues to rotate, due to blocking of the supporting face, the nut can only rotate in situ, and the fixing device is used for fixing the screw to prevent the screw and the nut from rotating together. At the moment, the screw rod moves linearly upwards under rotation of the nut, the damper is taken out of the mounting hole, and time and labor are saved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of damper disassembly, and in particular to a damper removal device. Background Art

[0002] The yaw system of wind turbines of small megawatt units mostly uses copper sleeves evenly distributed on the outer ring of the yaw bearing, and a friction plate is set under the copper sleeve to provide yaw damping; although there is a clearance fit between the copper sleeve and the copper sleeve mounting hole, it is easy to stick during long-term yaw, making it difficult to remove the copper sleeve. When replacing the friction plate in the related technology, a lifting ring is installed on the bottom thread of the copper sleeve, and a rope is passed through the lifting ring, and the rope is pulled to remove the copper sleeve, which requires manual brute force to remove, and is difficult to remove and extremely dangerous. Utility Model Content

[0003] The purpose of the present disclosure is to provide a damper removal device, which can solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a damper removal device, comprising: a screw rod, one end of which is used for threaded connection with a threaded hole on the damper; a nut, threadedly connected to the screw rod to move linearly along the screw rod; a fixing device, used to fix the screw rod to prevent the screw rod and the nut from rotating at the same time; and a bracket, having a supporting surface, which is arranged on the movement path of the nut, and the nut rotates in place after contacting the supporting surface, so that the screw rod drives the damper to move linearly in a direction opposite to the movement direction of the nut.

[0005] Optionally, the screw rod includes a first section and a second section, the diameter of the first section is larger than the diameter of the second section, the nut is connected to the first section, and the second section is used for threaded connection with the damper.

[0006] Optionally, the screw further includes a third section, the third section is disposed between the first section and the second section, a diameter of the third section is larger than a diameter of the second section and smaller than a diameter of the first section, and an outer surface of the third section is smooth.

[0007] Optionally, the fixing device includes a through hole provided on the screw rod and perpendicular to the axial direction of the screw rod, and a fixing piece passing through the through hole.

[0008] Optionally, a limiting hole for the screw rod to pass through is provided on the support surface, and a hole wall of the limiting hole extends in the same direction as the screw rod so that the screw rod can move linearly along the limiting hole.

[0009] Optionally, the supporting surface is arranged perpendicular to the screw rod, and a side of the nut close to the supporting surface is constructed as a plane.

[0010] Optionally, the mounting platform of the damper is configured as a plane and the screw rod is vertically arranged to the mounting platform, and the end of the bracket in contact with the mounting platform is configured as a plane.

[0011] Optionally, the bracket is constructed as a sleeve, one end of the sleeve is provided with an opening, the sleeve is sleeved on the outside of the damper through the opening, the side of the sleeve away from the damper is constructed as the supporting surface, and the limiting hole is arranged at the center of the supporting surface.

[0012] Optionally, a rotation arm is provided on the outer side of the nut.

[0013] Optionally, the damper is configured as a yaw copper sleeve of a wind turbine.

[0014] Through the above technical solution, one end of the screw is threadedly connected to the threaded hole of the damper, the nut is sleeved on the screw and moves along the screw, the nut moves downward and contacts the supporting surface of the bracket and continues to rotate. Due to the obstruction of the supporting surface, the nut can only rotate in place. The fixing device is used to fix the screw to prevent the screw and the nut from rotating at the same time. At this time, the screw moves linearly upward under the rotation of the nut, and the damper is removed from the mounting hole, saving time and effort.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a cross-sectional view of a damper take-out device in the present disclosure;

[0018] Figure 2 is a schematic structural diagram of a damper removal device in the present disclosure;

[0019] Figure 3 It is a structural schematic diagram of the yaw system of a wind turbine.

[0020] Description of Reference Numerals

[0021] 1. Bracket; 11. Limiting hole; 12. Support surface; 13. Opening; 2. Screw; 21. First section; 22. Second section; 23. Third section; 3. Nut; 4. Rotating lever arm; 5. Mounting platform; 6. Mounting hole; 7. Damper; 8. Fixing device; 81. Through hole; 82. Fixing piece. DETAILED DESCRIPTION

[0022] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0023] In the present disclosure, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower positions of the corresponding parts in the direction of gravity when in use, and "inner" and "outer" refer to the inner and outer positions relative to the contour of the parts or structures themselves. In addition, it should be noted that the terms used, such as "first, second, third", etc., are used to distinguish one element from another, and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0024] like Figure 1-3 As shown, the present disclosure provides a damper removal device, including: a screw rod 2, one end of which is used for threaded connection with a threaded hole on a damper 7; a nut 3, which is threadedly connected to the screw rod 2 to move linearly along the screw rod 2; a fixing device 8, which is used to fix the screw rod 2 to prevent the screw rod 2 and the nut 3 from rotating at the same time; and a bracket 1, which has a supporting surface 12, and the supporting surface 12 is arranged on the movement path of the nut 3. After the nut 3 contacts the supporting surface 12, it rotates in situ, so that the screw rod 2 drives the damper 7 to move linearly in a direction opposite to the movement direction of the nut 3.

[0025] Through the above technical solution, one end of the screw rod 2 is threadedly connected to the threaded hole of the damper 7, and the threaded hole itself is used to install a lifting ring, and the rope is passed through the lifting ring to take out the damper 7. The present invention uses the original threaded hole, and there is no need to modify the damper 7. The nut 3 is sleeved on the screw rod 2 and moves along the screw rod 2. The nut 3 moves downward and contacts the supporting surface 12 of the bracket 1 and then continues to rotate. Due to the obstruction of the supporting surface 12, the nut 3 can only rotate in place. The fixing device 8 is used to fix the screw rod 2 to prevent the screw rod 2 and the nut 3 from rotating at the same time. At this time, the screw rod 2 makes a linear motion upward under the rotation of the nut 3, and the damper 7 can be easily removed from the mounting hole 6, saving time and effort.

[0026] As an optional implementation, Figure 1 As shown, the screw rod 2 includes a first section 21 and a second section 22, the diameter of the first section 21 is larger than the diameter of the second section 22, the nut 3 is connected to the first section 21, the second section 22 is used for threaded connection with the damper 7, the diameter of the second section 22 is adapted to the threaded hole, and the nut 3 is connected to the first section 21 with a larger diameter, so that one turn of the nut 3 can make the screw rod 2 lift more and faster. In other embodiments, the diameter of the screw rod 2 can also be the same as a whole.

[0027] Alternatively, if Figure 1As shown, the screw 2 also includes a third section 23, which is arranged between the first section 21 and the second section 22. The diameter of the third section 23 is larger than the diameter of the second section 22 and smaller than the diameter of the first section 21. The outer surface of the third section 23 is smooth. The third section 23 serves as a transition section, which makes it easy to process the screw 2. At the same time, the diameter of the third section 23 is larger than the diameter of the second section 22, and can be used as a limit platform to prevent the first section 21 from directly contacting the damper 7 and causing damage to the first section 21 and the threads on the first section 21. The diameter of the third section 23 is smaller than the diameter of the first section 21. On the one hand, it is convenient for cutting processing, and on the other hand, it will not hinder the screw 2 from passing through the limit hole 11 on the bracket 1.

[0028] As an optional implementation, Figure 1-2 As shown, the fixing device 8 includes a through hole 81 provided on the screw rod 2 and perpendicular to the axial direction of the screw rod 2 and a fixing member 82 penetrated in the through hole 81. The through hole 81 is provided at the end of the screw rod 2 away from the damper 7. The fixing member 82 penetrates in the through hole 81 to prevent the screw rod 2 and the nut 3 from rotating at the same time. For example, the fixing member 82 is a fixing rod, which can be fixed by manual gripping, or a fixing frame can be provided to connect with the fixing rod to fix the fixing rod. Of course, in other embodiments, the fixing rod can also be welded at the end of the screw rod 2.

[0029] As an optional implementation, Figure 1 As shown, a limiting hole 11 for the screw rod 2 to pass through is provided on the support surface 12, and the hole wall of the limiting hole 11 extends in the same direction as the screw rod 2 so that the screw rod 2 can move linearly along the limiting hole 11, and the aperture of the limiting hole 11 matches the diameter of the first section 21 of the screw rod 2. The support surface 12 has a certain thickness so that the hole wall of the limiting hole 11 can limit the screw rod 2, so that the screw rod 2 remains in an upright state, and no oblique pulling force is generated during use, which can ensure that the damper 7 is taken out in the positive direction without damaging the damper 7 body. Because once the damper 7 deviates, the damper 7 will be stuck in the mounting hole 6 and is extremely difficult to take out.

[0030] As an optional implementation, Figure 1 As shown, the support surface 12 is arranged perpendicularly to the screw rod 2, and the side of the nut 3 close to the support surface 12 is constructed as a plane to ensure that the lifting force generated by the nut 3 is consistent with the extension direction of the screw rod 2, thereby avoiding the lifting force generated by the nut 3 from tilting and causing the screw rod 2 to tilt.

[0031] As an optional implementation, Figure 1-3 As shown, the mounting platform 5 of the damper 7 is constructed as a plane and the screw 2 is vertically arranged to the mounting platform 5. The end of the bracket 1 that contacts the mounting platform 5 is constructed as a plane. On the one hand, it can ensure the stability of the bracket 1. On the other hand, the side of the bracket 1 that contacts the mounting platform 5 is parallel to the supporting surface 12, avoiding the tilt of the supporting surface 12 and causing the screw 2 to tilt.

[0032] As an optional implementation, Figure 2 As shown, the bracket 1 can be constructed as any suitable structure. For example, in the present disclosure, the bracket 1 is constructed as a sleeve, one end of the sleeve is provided with an opening 13, the sleeve is sleeved on the outside of the damper 7 through the opening 13, and the side of the sleeve away from the damper 7 is constructed as a support surface 12, and the limiting hole 11 is arranged at the center of the support surface 12. Compared with the bracket 1 composed of ordinary support rods, the contact surface between the sleeve and the mounting platform 5 is larger and more stable. The screw 2 is penetrated through the center of the sleeve to correspond to the damper 7 in the mounting hole 6, and the screw 2 is penetrated through the support surface 12 so that the nut 3 can be fully in contact with the support surface 12, and the force on the nut 3 is more uniform, ensuring that the lifting force generated by the nut 3 extends in the same direction as the screw 2.

[0033] As an optional implementation, Figure 1-2 As shown, a rotating lever arm 4 is provided on the outside of the nut 3, and the rotating lever arm 4 is vertically arranged with the screw rod 2. The staff can hold the rotating lever arm 4 to rotate the nut 3, which is more labor-saving. For the convenience of use, two rotating lever arms 4 can be relatively arranged.

[0034] As an optional implementation, Figure 3 As shown, the damper 7 is constructed as a yaw copper sleeve of the wind turbine set, which is installed in the mounting hole 6 on the yaw chassis, and a friction plate is arranged under the yaw copper sleeve to provide yaw damping. The yaw chassis is the mounting platform 5 of the damper 7. When the yaw copper sleeve needs to be replaced, the second section 22 of the screw 2 is first threadedly connected to the threaded hole of the damper 7, and then the sleeve is sleeved on the outside of the screw 2 to make the screw 2 pass through the limiting hole 11. At this time, one side of the sleeve is in contact with the outside of the mounting hole 6, and then the nut 3 is installed. Finally, the fixing piece 82 is passed through the through hole 81 and fixed by hand, and the screw 2 is lifted upward by rotating the nut 3 to remove the yaw copper sleeve.

[0035] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0037] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A damper removal device, characterized in that: include: A screw, one end of which is used for threaded connection with a threaded hole on the damper; A nut, threadedly connected to the screw rod to move linearly along the screw rod; A fixing device, used for fixing the screw to prevent the screw and the nut from rotating at the same time; as well as The bracket has a supporting surface, which is arranged on the path of movement of the nut. After the nut contacts the supporting surface, it rotates in situ, so that the screw drives the damper to move linearly in the direction opposite to the movement direction of the nut.

2. The damper removal device according to claim 1, characterized in that: The screw rod includes a first section and a second section, the diameter of the first section is greater than the diameter of the second section, the nut is connected to the first section, and the second section is used for threaded connection with the damper.

3. The damper removal device according to claim 2, characterized in that: The screw rod further includes a third section, which is disposed between the first section and the second section. The diameter of the third section is larger than the diameter of the second section and smaller than the diameter of the first section. The outer surface of the third section is a smooth surface.

4. The damper removal device according to claim 1, characterized in that: The fixing device comprises a through hole which is arranged on the screw rod and is perpendicular to the axial direction of the screw rod, and a fixing piece which penetrates the through hole.

5. The damper removal device according to claim 1, characterized in that: The support surface is provided with a limiting hole for the screw rod to pass through, and the hole wall of the limiting hole extends in the same direction as the screw rod so that the screw rod can move linearly along the limiting hole.

6. The damper removal device according to claim 1, characterized in that: The supporting surface is arranged perpendicularly to the screw rod, and a side of the nut close to the supporting surface is configured as a plane.

7. The damper removal device according to claim 1 or 6, characterized in that: The mounting platform of the damper is configured as a plane and the screw rod is vertically arranged to the mounting platform, and the end of the bracket in contact with the mounting platform is configured as a plane.

8. The damper removal device according to claim 5, characterized in that: The bracket is configured as a sleeve, one end of which is provided with an opening, the sleeve is sleeved on the outside of the damper through the opening, the side of the sleeve away from the damper is configured as the supporting surface, and the limiting hole is arranged at the center of the supporting surface.

9. The damper removal device according to claim 1, characterized in that: A rotation arm is arranged on the outer side of the nut.

10. The damper removal device according to claim 1, characterized in that: The damper is constructed as a yaw copper sleeve of a wind turbine generator set.

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