CN209380646U - A kind of wind generating set yaw brake replacement tool - Google Patents

Abstract

The utility model discloses a kind of wind generating set yaw brakes to replace tool, including mobile jib, the bottom end of the mobile jib is fixedly connected with chassis, and the outside of mobile jib is fixedly connected with supporting mechanism close to the upper end of chassis, the outside of the mobile jib is provided with traction mechanism close to the upper end of supporting mechanism, the top of the traction mechanism is provided with take-up mechanism, and the rear end of the inside of the chassis is provided through bolt.The utility model makes chassis be fixed together with external yaw brake disc by bolt, the interior bar sliding on traction mechanism is driven by take-up mechanism, off-course brake is driven to leave yaw brake disc by the pin shaft on traction mechanism, the off-course brake for leaving yaw brake disc is placed by supporting mechanism, and off-course brake is made to reach suitable position, external crane suspention is facilitated to save time and the physical strength of replacement so that service worker be facilitated to replace off-course brake.

Description

A tool for replacing the yaw brake of a wind power generating set

technical field

The utility model relates to the technical field of wind power generators, in particular to a tool for replacing a yaw brake of a wind power generator.

Background technique

The wind power industry is one of my country's strategic industries, and the demand for domestic wind power equipment is also increasing. Among them, the wind power yaw brake is an important part of the wind turbine braking system, and its braking performance directly determines the wind turbine performance. Whether to achieve normal operation, the yaw brake is fixed on the yaw brake disc through multiple bolts, and the yaw brake is performed through the friction plate. With the increase of the installed capacity, the yaw brake is correspondingly more and more Large, yaw brakes for wind turbines above 1.5MW usually weigh more than 200 kg, so when it is necessary to replace the yaw brakes, it is very inconvenient to operate.

A Chinese patent discloses a wind turbine yaw brake inspection and replacement device (authorized announcement number CN204524711U). Safety improves the working conditions for on-site maintenance and replacement of operators, but the entire yaw brake is supported by lifting bolts, which may easily cause damage to the threads of the lifting bolts, and is inconvenient for external cranes to lift. Therefore, those skilled in the art provide a wind power generating set yaw brake replacement tool to solve the problems raised in the background art above.

Contents of the invention

The purpose of this utility model is to provide a wind power generating set yaw brake replacement tool to solve the problem that the entire yaw brake is supported by the lifting bolts in the above-mentioned background technology, which may easily cause damage to the threads of the lifting bolts.

In order to achieve the above object, the utility model provides the following technical solutions:

A yaw brake replacement tool for a wind power generating set, comprising a main rod, the bottom end of the main rod is fixedly connected with a chassis, and the outer side of the main rod is fixedly connected with a support mechanism close to the upper end of the chassis, and the outer side of the main rod is fixedly connected with a support mechanism. A traction mechanism is provided close to the upper end of the support mechanism, a wire take-up mechanism is provided at the top end of the traction mechanism, and a bolt is provided through the inner rear end of the bottom frame.

As a further solution of the utility model: the traction mechanism includes an outer tube, and there are two outer tubes in total, and the inner side of the rear end of the outer tube is slidingly connected with an inner rod, and the front end of the outer tube is fixedly connected with a second A sliding sleeve, the rear end of the inner rod is fixedly connected with a first sliding sleeve, the inner side of the first sliding sleeve is provided with a pin shaft, and the outer end of the second sliding sleeve is embedded with a screw rod, and the screw rod A sleeve hole is opened at one end, and a reinforcing rod is provided through the inner side of the sleeve hole, and a connecting rod is fixedly connected between the two first sliding sleeves and the two second sliding sleeves.

As a further solution of the utility model: the take-up mechanism includes a take-up reel, one side of the top of the take-up reel is fixedly connected with a trunnion, and a steel strand is wound around the outer side of the take-up reel, the steel wire One end of twisted wire is connected with hook.

As a further solution of the present invention: the take-up reel is rotatably connected to the connecting rod between the two second sliding sleeves, and the hook is fixedly connected to the connecting rod between the two first sliding sleeves.

As a further solution of the utility model: the supporting mechanism includes an outer casing, an inner sliding rod is slidably connected to the inner side of the rear end of the outer casing, and a thumb bolt is embedded in the rear side of the top end of the outer casing, and the inner sliding rod A placement frame is fixedly connected to the rear side of the rod, and ball slide rails are slidably connected to both ends of the connection between the outer shell and the inner slide rod.

As a further solution of the present invention: the outer casing and the bottom frame are respectively fixedly connected to the main rod by welding.

Compared with the prior art, the utility model has the beneficial effects:

The bottom frame and the external yaw brake disc are fixed together by bolts, the inner rod on the traction mechanism is driven to slide by the take-up mechanism, the yaw brake is driven away from the yaw brake disc by the pin shaft on the traction mechanism, and the The mechanism places the yaw brake away from the yaw brake disc, and makes the yaw brake reach a suitable position, which is convenient for the external crane to hang, so that maintenance workers can easily replace the yaw brake, saving the time and effort of replacement.

Description of drawings

Fig. 1 is a structural schematic diagram of a wind turbine yaw brake replacement tool;

Fig. 2 is an exploded view of a traction mechanism in a wind turbine yaw brake replacement tool;

Fig. 3 is a structural schematic diagram of a wire take-up mechanism in a wind turbine yaw brake replacement tool;

Fig. 4 is a structural schematic diagram of a support mechanism in a tool for replacing a yaw brake of a wind power generating set.

In the figure: 1. main pole; 2. wire take-up mechanism; 21. wire take-up reel; 22. trunnion; 23. hook; 24. steel strand; 3. traction mechanism; 31. outer tube; 32. inner rod; 33. The first sliding sleeve; 34. Pin shaft; 35. Connecting rod; 36. The second sliding sleeve; 37. Screw rod; , hand-tightened bolts; 43, ball slide rails; 44, inner slide rods; 45, placement racks; 5, bolts; 6, bottom frame.

Detailed ways

Please refer to Figures 1 to 4. In the embodiment of the present invention, a tool for replacing the yaw brake of a wind power generating set includes a main rod 1. The bottom end of the main rod 1 is fixedly connected with a chassis 6. The outer side of the main rod 1 is close to the bottom The upper end of the frame 6 is fixedly connected with a support mechanism 4, the outer side of the main rod 1 is provided with a traction mechanism 3 close to the upper end of the support mechanism 4, the top of the traction mechanism 3 is provided with a take-up mechanism 2, and the rear end of the inner side of the bottom frame 6 is penetrated. There are bolts 5.

In order to separate the yaw brake from the yaw brake disc and facilitate the suspension of the external crane, the traction mechanism 3 includes an outer tube 31. There are two outer tubes 31. The inner side of the rear end of the outer tube 31 is slidably connected to an inner rod 32. The front end of the outer tube 31 is fixedly connected with a second sliding sleeve 36, the rear end of the inner rod 32 is fixedly connected with a first sliding sleeve 33, the inner side of the first sliding sleeve 33 is provided with a pin shaft 34, and the outer side of the second sliding sleeve 36 One end is embedded with a screw rod 37, and one end of the screw rod 37 is provided with a sleeve hole 38, and the inner side of the sleeve hole 38 is provided with a reinforcing rod 39, between the two first sliding sleeves 33 and between the two second sliding sleeves 36. A connecting rod 35 is fixedly connected.

In order to make the yaw brake move, the take-up mechanism 2 includes a take-up reel 21, one side of the top of the take-up reel 21 is fixedly connected with a trunnion 22, and the outside of the take-up reel 21 is wound with a steel strand 24, and the steel strand 24 One end of is connected with hook 23.

In order to drive the inner rod 32 to slide through the take-up mechanism 2, the take-up reel 21 is rotationally connected with the connecting rod 35 between the two second sliding sleeves 36, and the connecting rod 35 between the hook 23 and the two first sliding sleeves 33 is fixed. connect.

In order to transfer the yaw brake that has left the yaw brake disc, the support mechanism 4 includes an outer shell 41, the inner side of the rear end of the outer shell 41 is slidably connected with an inner sliding rod 44, and the rear side of the top end of the outer shell 41 is embedded with a thumb bolt 42 , the rear side of the inner slide bar 44 is fixedly connected with a placement frame 45 , and both ends of the connection between the outer casing 41 and the inner slide bar 44 are slidably connected with ball slide rails 43 .

In order to securely fix the outer casing 41 and the bottom frame 6 with the main pole 1 respectively, the outer casing 41 and the bottom frame 6 are respectively fixedly connected with the main pole 1 by welding.

The working principle of the utility model: firstly, fix the underframe 6 in the discharge hole at the bottom end of the yaw brake disc through the bolt 5, and then pass the pin shaft 34 through the first sliding sleeve 33 and the two ends of the yaw brake in turn In the reserved hole, then slide the second sliding sleeve 36 on the outside of the main rod 1. After adjusting to a suitable position, turn the force bar 39 clockwise, and make the second sliding sleeve 36 and the main rod 1 through the screw rod 37. Tightly lock together, then loosen the bolt between the yaw brake and the yaw brake disc, then pull out the booster rod 39 from the sleeve hole 38, insert the booster rod 39 into the trunnion 22, Continue to rotate the booster rod 39 to rotate the take-up reel 21, and the take-up reel 21 takes up the steel strand 24, thereby driving the inner rod 32 to slide inwardly of the outer tube 31, and then pull the yaw brake through the pin shaft 34 , when the yaw brake leaves the yaw brake disc, the yaw brake automatically falls into the placement frame 45. At this time, the take-up reel 21 continues to take up the steel strand 24. When the yaw brake falls into the placement frame completely After 45°, stop winding up the steel strand 24, then turn the thumb bolt counterclockwise so that the outer shell 41 and the inner slide bar 44 can slide relative to each other. The brake reaches the proper position. Finally, the yaw brake is hoisted away by an external crane. When the yaw brake needs to be installed, install the replacement tool on the other side of the yaw brake disc. Similarly, the yaw brake can be installed Move the specified position, and then fix the yaw brake and the yaw brake disc together through bolts, so as to complete the replacement of the yaw brake.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the technical solution of the utility model and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. A wind power generating set yaw brake replacement tool, comprising a main rod (1), is characterized in that, the bottom end of the main rod (1) is fixedly connected with an underframe (6), and the main rod (1) The outer side is fixedly connected with a support mechanism (4) close to the upper end of the chassis (6), and the outside of the main rod (1) is provided with a traction mechanism (3) close to the upper end of the support mechanism (4), and the traction mechanism (3) A wire take-up mechanism (2) is provided at the top end of the bottom frame (6), and a bolt (5) is provided through the inner rear end of the bottom frame (6). 2. The yaw brake replacement tool for a wind power generating set according to claim 1, characterized in that, the traction mechanism (3) includes an outer tube (31), and the outer tube (31) is provided with two , and the inner side of the rear end of the outer tube (31) is slidably connected with an inner rod (32), the front end of the outer tube (31) is fixedly connected with a second sliding sleeve (36), and the rear end of the inner rod (32) is fixed The first sliding sleeve (33) is connected, the inner side of the first sliding sleeve (33) is provided with a pin shaft (34), and the outer end of the second sliding sleeve (36) is embedded with a screw rod (37). , one end of the screw (37) is provided with a sleeve hole (38), and the inner side of the sleeve hole (38) is provided with a reinforcing rod (39), between the two first sliding sleeves (33) and A connecting rod (35) is fixedly connected between the two second sliding sleeves (36). 3. The yaw brake replacement tool for a wind power generating set according to claim 1, characterized in that, the take-up mechanism (2) includes a take-up reel (21), and the top end of the take-up reel (21) One side of the steel strand (24) is fixedly connected with a trunnion (22), and the outer side of the take-up reel (21) is wound with a steel strand (24), and one end of the steel strand (24) is connected with a hook (23). 4. The yaw brake replacement tool for a wind power generating set according to claim 3, characterized in that the connecting rod (35) between the take-up reel (21) and the two second sliding sleeves (36) Rotationally connected, the hook (23) is fixedly connected to the connecting rod (35) between the two first sliding sleeves (33). 5. A yaw brake replacement tool for a wind power generating set according to claim 1, characterized in that, the support mechanism (4) comprises an outer shell (41), and the inner side of the rear end of the outer shell (41) slides The inner sliding rod (44) is connected, and the rear side of the top of the outer shell (41) is embedded with a thumb bolt (42), and the rear side of the inner sliding rod (44) is fixedly connected with a placement frame (45). Ball slide rails (43) are slidably connected to both ends of the connection between the outer casing (41) and the inner slide bar (44). 6. A wind turbine yaw brake replacement tool according to claim 5, characterized in that, the outer casing (41) and the chassis (6) are respectively fixed to the main rod (1) by welding connect.