Rotation-stopping torsion bar of rotating slip ring

Abstract

The utility model relates to the technical field of wind power generation components, in particular to a rotation-stopping torsion bar of a rotary slip ring, which comprises a first bar body and a second bar body, a positioning block is fixedly mounted on one side of the first bar body and movably inserted into the second bar body, and the opposite ends of the first bar body and the second bar body are abutted against each other. A bolt is inserted into the top of the second rod body in a threaded mode, the end of the bolt penetrates through the positioning block and extends to the bottom of the second rod body, and through holes are formed in the second rod body and the positioning block. The nut can be screwed off from the bolt by screwing the nut, then the bolt is pulled out from the through hole, positioning connection of the first rod body and the second rod body can be removed, finally, the other end of the damaged first rod body or the damaged second rod body is detached, and the first rod body and the second rod body can be separated and replaced. The rotation-stopping torsion bar is of a split type structure, can be normally used, can quickly detach damaged parts for replacement, is convenient to maintain, and can reduce the maintenance cost at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation components, in particular to a rotation-stopping torsion bar of a rotating slip ring. Background Art

[0002] The wind power generation rotating slip ring is responsible for the power, control signal and data transmission functions of the entire wind power generation system. It is a very critical component in the entire wind turbine system. The wind power generation rotating slip ring anti-rotation torsion bar is a device used for the rotating slip ring of the wind turbine. Its main function is to prevent the rotating slip ring from rotating freely under the action of wind, thereby ensuring the normal operation of the wind turbine generator set.

[0003] For example, the patent specification of an existing Chinese patent (publication number: CN203796502U) discloses a torsion bar for a rotary slip ring, wherein threaded columns are provided at both ends of a screw body, and a rotary joint is connected to the threaded column. The rotary joint and the threaded column can be locked and fixed by adjusting a locking nut, and the rotary joint is connected to a mounting bolt via a spherical bearing, that is, a hinge hole with a spherical inner wall is provided on the rotary joint, and the hinge hole is hinged to a spherical hinge block, and the mounting bolt passes through a connecting hole provided on the spherical hinge block and is connected to the rotary slip ring assembly, so that the coaxiality with the screw body and the rotary slip ring assembly can be adjusted.

[0004] However, in the implementation of relevant technologies, it was found that the anti-rotation torque bar of the rotating slip ring of the above design has the following problems: although the anti-rotation torque bar of the rotating slip ring is easy to install, its rod body is integrally formed. Since the torque of wind power generation is large during rotation, the torsion bar is prone to breakage. The anti-rotation torque bar of the rotating slip ring of the above design is an integrally formed setting, so when the rod body breaks, it needs to be replaced as a whole, which not only increases the difficulty of maintenance, but also increases the maintenance cost.

[0005] In view of this, a torsion bar for a rotating slip ring is provided to overcome the above-mentioned defects. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a rotation-stopping torsion bar for a rotating slip ring.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rotation-stop torsion bar of a rotating slip ring, comprising a first rod body and a second rod body, a positioning block is fixedly installed on one side of the first rod body, the positioning block is movably inserted in the second rod body, the first rod body and the second rod body are abutted at one end opposite to each other, a bolt is threadedly inserted in the top of the second rod body, the end of the bolt passes through the positioning block and extends to the bottom of the second rod body, through holes are provided in the second rod body and the positioning block, the bolt is slidably inserted in the second rod body and the positioning block through the through holes, a nut is threadedly sleeved on the bolt, and the nut abuts against the bottom of the second rod body.

[0008] As a further description of the above technical solution: a positioning groove is provided on one side of the second rod body, and the positioning block is slidably inserted in the positioning groove.

[0009] As a further description of the above technical solution: a sliding piece is slidably arranged in the nut, a clamping rod is fixedly installed on the top of the sliding piece, a supporting spring is movably sleeved on the clamping rod, two ends of the supporting spring are respectively connected to the nut and the sliding piece, a clamping slot is provided at the bottom of the second rod body, the top end of the clamping rod slides through the nut and is slidably inserted into the clamping slot, and the clamping rod can be inserted into the clamping slot through the cooperation of the sliding piece, the clamping rod, the supporting spring and the clamping slot, thereby limiting the nut to prevent the nut from rotating on its own due to vibration, thereby improving stability during use.

[0010] As a further description of the above technical solution: a cavity, a fixed opening and a sliding opening are respectively opened in the interior, the top and one side of the nut, and the cavity, the fixed opening and the sliding opening are communicated with each other. The sliding piece is slidably connected in the cavity, the clamping rod is slidably inserted in the fixed opening, and the two ends of the support spring are respectively fixedly connected to the inner wall of the cavity and the top of the sliding piece.

[0011] As a further description of the above technical solution: a pull rod is fixedly installed on one side of the slide, and a pull block is fixedly installed on the other end of the pull rod. The pull rod is slidably inserted in the sliding mouth, and the pull block is pulled downward to facilitate the sliding of the card rod out of the card slot, thereby facilitating the release of the positioning of the nut, thereby facilitating the replacement of the damaged first rod body or the second rod body.

[0012] As a further description of the above technical solution: the outer surface of the pull block is provided with anti-skid patterns, which can increase the friction between the hand of the person and the pull block, thereby helping to solve the problem of slipping when pulling the pull block.

[0013] As a further description of the above technical solution: two guide rods are symmetrically inserted in the slide, and both ends of the guide rods are fixedly installed in the cavity, which can limit the sliding direction of the slide and avoid the problem of tilting of the slide.

[0014] As a further description of the above technical solution: a permanent magnet is fixedly installed on the bottom wall of the cavity, the guide rod is fixedly inserted in the permanent magnet, the sliding piece is made of iron, and the sliding piece is magnetically connected to the permanent magnet, so that the sliding piece can be simply positioned, and personnel can be assisted in replacing the first rod body and the second rod body.

[0015] The utility model has the following beneficial effects:

[0016] The anti-rotation torsion bar of the rotating slip ring designed by the utility model can unscrew the nut from the bolt by rotating the nut, and then pull the bolt out of the through hole to release the positioning connection between the first rod body and the second rod body. Finally, the other end of the damaged first rod body or the second rod body can be disassembled, and the first rod body and the second rod body can be separated and replaced. The anti-rotation torsion bar adopts a split structure, which can not only be used normally, but also can be quickly disassembled and replaced for damaged parts, which is convenient for maintenance and reduces maintenance costs.

[0017] The anti-rotation torsion bar of the rotating slip ring designed by the utility model can insert the clamping rod into the clamping slot through the cooperation of the sliding piece, the clamping rod, the supporting spring and the clamping slot, so as to limit the nut and prevent the nut from rotating on its own due to vibration, thereby improving the stability during use; by pulling the pull block downward, the clamping rod can be easily slid out of the clamping slot, thereby facilitating the release of the positioning of the nut, thereby facilitating the replacement of the damaged first rod body or the second rod body; by arranging a permanent magnet, the sliding piece can be simply positioned, and the personnel can be assisted in replacing the first rod body and the second rod body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the interior of the first rod body and the second rod body of the utility model in a half-section view;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the interior of the nut of the utility model in a half-section view;

[0021] Figure 4 For this utility model Figure 2 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. First rod body; 2. Second rod body; 3. Positioning groove; 4. Positioning block; 5. Bolt; 6. Nut; 7. Sliding piece; 8. Clamping rod; 9. Support spring; 10. Clamping groove; 11. Pull rod; 12. Pulling block; 13. Cavity; 14. Sliding mouth; 15. Fixing mouth; 16. Guide rod; 17. Permanent magnet. DETAILED DESCRIPTION

[0024] Reference Figure 1-4 The utility model provides a rotation-stopping torsion bar of a rotating slip ring: it includes a first rod body 1 and a second rod body 2, a positioning block 4 is fixedly installed on one side of the first rod body 1, the positioning block 4 is movably inserted in the second rod body 2, the first rod body 1 and the second rod body 2 are butted at one end opposite to each other, a bolt 5 is threadedly inserted at the top of the second rod body 2, the end of the bolt 5 passes through the positioning block 4 and extends to the bottom of the second rod body 2, through holes are provided in the second rod body 2 and the positioning block 4, the bolt 5 is slidably inserted in the second rod body 2 and the positioning block 4 through the through holes, a nut 6 is threadedly sleeved on the bolt 5, the nut 6 is butted against the bottom of the second rod body 2, a positioning groove 3 is provided on one side of the second rod body 2, and the positioning block 4 is slidably inserted in the positioning groove 3.

[0025] In the specific implementation, the first rod body 1 and the second rod body 2 are first installed on the rotating slip ring and the nacelle of the wind turbine generator set respectively. When the wind force acts on the blades of the wind turbine generator set, the rotating slip ring will drive the second rod body 2 and the first rod body 1 to rotate, and the second rod body 2 and the first rod body 1 will transmit the rotating force to the nacelle of the wind turbine generator set, thereby preventing the rotating slip ring from rotating freely. When the first rod body 1 or the second rod body 2 is broken, the nut 6 can be screwed off the bolt 5 by rotating the nut 6, and then the bolt 5 can be pulled out from the through hole to release the positioning connection between the first rod body 1 and the second rod body 2. Finally, the other end of the damaged first rod body 1 or the second rod body 2 is disassembled, and the first rod body 1 and the second rod body 2 can be separated and replaced. The anti-rotation torsion bar adopts a split structure, which can not only be used normally, but also can be quickly disassembled and replaced for damaged parts, which is convenient for maintenance and reduces maintenance costs.

[0026] As a further implementation scheme of the above technical scheme: a slide 7 is slidably arranged in the nut 6, a clamping rod 8 is fixedly installed on the top of the slide 7, a support spring 9 is movably sleeved on the clamping rod 8, and both ends of the support spring 9 are respectively connected to the nut 6 and the slide 7, a clamping groove 10 is provided at the bottom of the second rod body 2, the top of the clamping rod 8 slides through the nut 6 and is slidably inserted in the clamping groove 10, a cavity 13, a fixed opening 15 and a sliding opening 14 are respectively provided in the interior, top and one side of the nut 6, the cavity 13, the fixed opening 15 and the sliding opening 14 are connected, the slide 7 is slidably connected in the cavity 13, the clamping rod 8 is slidably inserted in the fixed opening 15, and the two ends of the support spring 9 are respectively fixedly connected to the inner wall of the cavity 13 and the top of the slide 7.

[0027] In a specific implementation, on the basis of the above implementation, through the cooperation of the slide 7, the clamping rod 8, the support spring 9 and the clamping slot 10, the clamping rod 8 can be inserted into the clamping slot 10, and then the nut 6 can be limited to prevent the nut 6 from rotating on its own due to vibration, thereby improving the stability during use.

[0028] As a further implementation of the above technical solution: a pull rod 11 is fixedly installed on one side of the slide 7, a pull block 12 is fixedly installed on the other end of the pull rod 11, and the pull rod 11 is slidably inserted in the slide 14. Pulling the pull block 12 downwards can facilitate the sliding of the clamping rod 8 out of the clamping groove 10, thereby facilitating the release of the positioning of the nut 6, thereby facilitating the replacement of the damaged first rod body 1 or the second rod body 2.

[0029] As a further implementation of the above technical solution: the outer surface of the pull block 12 is provided with anti-skid patterns, which can increase the friction between the hand of the person and the pull block 12, thereby helping to solve the problem of slipping when pulling the pull block 12.

[0030] As a further implementation of the above technical solution: two guide rods 16 are symmetrically inserted in the slide 7, and both ends of the guide rods 16 are fixedly installed in the cavity 13. The sliding direction of the slide 7 can be limited to avoid the slide 7 from tilting.

[0031] As a further implementation of the above technical solution: a permanent magnet 17 is fixedly installed on the bottom wall of the cavity 13, the guide rod 16 is fixedly inserted in the permanent magnet 17, the slide 7 is made of iron, and the slide 7 is magnetically connected to the permanent magnet 17. The slide 7 can be simply positioned to assist personnel in replacing the first rod body 1 and the second rod body 2.

[0032] Working principle:

[0033] When using the utility model, firstly, the first rod body 1 and the second rod body 2 are installed on the rotating slip ring and the nacelle of the wind turbine generator set respectively. When the wind force acts on the blades of the wind turbine generator set, the rotating slip ring will drive the second rod body 2 and the first rod body 1 to rotate, and the second rod body 2 and the first rod body 1 transmit the rotating force to the nacelle of the wind turbine generator set, thereby preventing the rotating slip ring from rotating freely. When the first rod body 1 or the second rod body 2 is broken, the pull block 12 is pulled downward at this time, so that the pull block 12 drives the pull rod 11 and the slide 7 to move downward in the cavity 13 along the direction set by the guide rod 16, and at the same time, the slide 7 stretches the support spring 9 and drives the clamping rod 8 Slide out of the slot 10 until the slide 7 is attracted to the permanent magnet 17, and the nut 6 can be released from the position. Then, the nut 6 is rotated to unscrew the nut 6 from the bolt 5, and then the bolt 5 is pulled out from the through hole. The positioning connection between the first rod body 1 and the second rod body 2 can be released. Finally, the other end of the damaged first rod body 1 or the second rod body 2 can be disassembled, and the first rod body 1 and the second rod body 2 can be separated and replaced. The anti-rotation torsion bar adopts a split structure, which can not only be used normally, but also can quickly disassemble and replace the damaged part, which is convenient for maintenance and reduces the maintenance cost. Finally, the replaced first rod body 1 or the second rod body 2 can be installed according to the above principle.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A torsion bar for a rotating slip ring, comprising a first rod body (1) and a second rod body (2), characterized in that: A positioning block (4) is fixedly mounted on one side of the first rod body (1), and the positioning block (4) is movably inserted into the second rod body (2). The first rod body (1) and the second rod body (2) are butted against one another at opposite ends. A bolt (5) is threadedly inserted into the top of the second rod body (2), and the end of the bolt (5) passes through the positioning block (4) and extends to the bottom of the second rod body (2). Through holes are provided in the second rod body (2) and the positioning block (4), and the bolt (5) is slidably inserted into the second rod body (2) and the positioning block (4) through the through holes. A nut (6) is threadedly sleeved on the bolt (5), and the nut (6) is butted against the bottom of the second rod body (2).

2. The anti-rotation torsion bar of a rotating slip ring according to claim 1, characterized in that: A positioning groove (3) is provided on one side of the second rod body (2), and the positioning block (4) is slidably inserted into the positioning groove (3).

3. The anti-rotation torsion bar of a rotating slip ring according to claim 1, characterized in that: A slide member (7) is slidably arranged inside the nut (6), a clamping rod (8) is fixedly installed on the top of the slide member (7), a support spring (9) is movably sleeved on the clamping rod (8), two ends of the support spring (9) are respectively connected to the nut (6) and the slide member (7), a clamping groove (10) is provided at the bottom of the second rod body (2), and the top end of the clamping rod (8) slides through the nut (6) and is slidably inserted into the clamping groove (10).

4. The anti-rotation torsion bar of a rotating slip ring according to claim 3, characterized in that: The nut (6) is provided with a cavity (13), a fixing opening (15) and a sliding opening (14) in its interior, on its top and on one side respectively; the cavity (13), the fixing opening (15) and the sliding opening (14) are communicated with each other; the sliding member (7) is slidably connected in the cavity (13); the clamping rod (8) is slidably inserted in the fixing opening (15); and the two ends of the support spring (9) are fixedly connected to the inner wall of the cavity (13) and the top of the sliding member (7) respectively.

5. The anti-rotation torsion bar of a rotating slip ring according to claim 4, characterized in that: A pull rod (11) is fixedly mounted on one side of the slide (7), a pull block (12) is fixedly mounted on the other end of the pull rod (11), and the pull rod (11) is slidably inserted into the slide opening (14).

6. The anti-rotation torsion bar of a rotating slip ring according to claim 5, characterized in that: The outer surface of the pull block (12) is provided with anti-slip textures.

7. The anti-rotation torsion bar of a rotating slip ring according to claim 4, characterized in that: Two guide rods (16) are symmetrically inserted into the sliding member (7), and both ends of the guide rods (16) are fixedly mounted in the cavity (13).

8. The anti-rotation torsion bar of a rotating slip ring according to claim 7, characterized in that: A permanent magnet (17) is fixedly mounted on the inner bottom wall of the cavity (13); the guide rod (16) is fixedly inserted into the permanent magnet (17); the sliding piece (7) is made of iron, and the sliding piece (7) is magnetically connected to the permanent magnet (17).

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