Portable in-cabin maintenance and conveying device for wind generating set

Abstract

The invention discloses a portable in-cabin maintenance and conveying device for a wind generating set, which comprises a steel cable and climbing hooks respectively fixed at two ends of the steel cable, and further comprises a linear bearing sleeved on the steel cable, side covers sleeved on the linear bearing in pairs, and a brake assembly and a lifting assembly which are arranged on the side covers, the brake assembly is used for controlling the moving speed of the brake block on the steel cable to prevent the situation that maintenance personnel cannot control the brake block due to inertial acceleration, and the lifting assembly is used for hooking the brake block to increase the ground clearance. According to the technical scheme, in the space-limited environment, the steel cable is hooked on the hanging ring to produce height difference to transport the brake block, the brake assembly can effectively control the moving speed of the brake block, the situation that the inner wall of a cabin of the device is caused by inertial acceleration is avoided, and the lifting assembly can lift the height of the brake block so as to avoid the obstacle that the ground is uneven.

Description

Technical Field

[0001] The invention relates to a portable in-cabin maintenance and transportation device for a wind power generator set. Background Art

[0002] The internal environment of the wind turbine nacelle is quite complex. It integrates a variety of high-tech equipment and systems to ensure the efficient, safe and reliable operation of wind power generation. Due to the limited space inside the nacelle, a large number of electrical, mechanical and control systems are integrated. These systems include generators, gearboxes, pitch systems, control systems, cooling systems, safety systems, etc. They are interrelated and interdependent to jointly realize the function of wind power generation. This highly integrated design makes the internal layout of the nacelle compact and the distance between equipment is short, which puts high demands on the installation, commissioning and maintenance of the equipment. When entering the nacelle, maintenance personnel need to enter through a ladder and wear a safety lock to work in the nacelle. The brake blocks in the nacelle are parts that need to be replaced periodically. The brake blocks are lifted from the ground to the nacelle by the winch inside the nacelle. Due to the high integration design of the nacelle, these brake blocks can only be moved by hand, and it is extremely laborious to cross the uneven obstacles on the ground during this movement. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a portable wind turbine generator cabin maintenance and transportation device, so that maintenance personnel can easily carry brake blocks in the cabin.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a portable wind turbine cabin maintenance and transportation device, comprising a steel cable, a mountaineering buckle respectively fixed at both ends of the steel cable, a linear bearing sleeved on the steel cable, a side cover sleeved on the linear bearing in pairs, a brake assembly and a lifting assembly installed on the side cover, the side cover is provided with a first flange and a second flange, the brake assembly is installed on the first flange, the lifting assembly is installed on the connecting surface between the first flange and the second flange, the end surface of the side cover facing the linear bearing is provided with a groove abutting and limiting with the end of the linear bearing, the paired side covers are fixedly connected to the second flange by a locking member, a plurality of brake assemblies are arranged along the circumference of the first flange, the brake assembly comprises a mounting frame fixedly connected to the first flange, a brake pad hinged at the end of the mounting frame, a boss with an external thread is provided on the end surface of the first flange facing the brake pad, a sleeve is provided on the boss that is threadedly connected to it, and a guide surface is provided on the end surface of the brake pad for abutting against the inner wall of the sleeve.

[0005] As a further improvement of the present invention, positioning posts are provided on the surfaces of the mounting frame opposite to the brake pads, and springs are provided between the positioning posts, with both ends of the springs respectively sleeved on the positioning posts.

[0006] As a further improvement of the present invention, the connection portion of the mounting frame for fixing the first flange is semi-enclosed.

[0007] As a further improvement of the present invention, the outer diameter surface of the sleeve is provided with a plurality of convex ribs along its circumference.

[0008] As a further improvement of the present invention, the lifting assembly includes a first limit block and a belt arranged along the circumference of the side cover, the first limit block is provided with a bending portion, and the belt is used to cooperate with the front side of the first limit block and is provided with a convex portion and a concave portion that cooperate with the bending portion, the convex portion and the concave portion form a clamping state with an interference fit with the bending portion, the convex portion and the concave portion are arranged along the length direction of the belt, and the end of the belt is provided with a hook for hooking.

[0009] As a further improvement of the present invention, the back side of the belt is provided with a second limit block which cooperates with the convex portion and the concave portion after winding, and the second limit block is arranged along the length direction of the belt, and the second limit block forms a clamping state with interference when cooperating with the convex portion and the concave portion.

[0010] As a further improvement of the present invention, a communicating window is provided on the opposite surface of the second flange, and the window is used for installing a carabiner to hook the lifted brake block.

[0011] The beneficial effects of the present invention are as follows: in a space-constrained environment, the brake block can be transported by hanging it on a lifting ring through a steel cable hook to create a height difference. The brake assembly can effectively control the moving speed of the brake block to avoid the inner wall of the device cabin due to inertial acceleration. The lifting assembly can lift the brake block to a high height to avoid obstacles on the uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a cross-sectional schematic diagram of a brake mechanism according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the coordination of lifting components according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the cooperation between the connecting seat and the suspension beam according to an embodiment of the present invention.

[0013] Figure numbers: 1. Steel cable; 2. Mountaineering buckle; 3. Linear bearing; 4. Side cover; 41. First flange; 42. Second flange; 43. Window; 44. Groove; 45. Boss; 46. Sleeve; 5. Brake assembly; 51. Mounting frame; 52. Brake pad; 53. Positioning column; 54. Spring; 6. Lifting assembly; 61. First limit block; 62. Belt; 621 convex portion; 622, concave portion; 623, second limit block; 63. Hook. DETAILED DESCRIPTION

[0014] The present invention will be further described below in detail with reference to the embodiments shown in the accompanying drawings.

[0015] Reference Figure 1-4 As shown, a portable wind turbine generator cabin maintenance and transportation device comprises a steel cable 1, a carabiner 2 respectively fixed at both ends of the steel cable 1, a linear bearing 3 sleeved on the steel cable 1, a side cover 4 sleeved on the linear bearing 3 in pairs, and a brake assembly 5 and a lifting assembly 6 installed on the side cover 4. The carabiners 2 at both ends of the steel cable 1 are used to connect to the lifting rings with a height difference inside the cabin. When fixing, the tightness of the steel cable can be controlled by tying or winding the lifting ring. By creating the height difference, the brake block can be light and labor-saving during transportation. In actual application, in order to further facilitate the control of height, a connecting seat forming a clamp can be installed on both sides of the convex beam or the suspension beam in the cabin. The connecting seats are fixedly connected by bolts, and a straight rod whose length is adjusted by threaded connection is provided on the connecting seat. The bottom of the straight rod is fixedly connected to the connecting seat by bolts, and a ring for cooperating with a mountaineering buckle 2 is provided at the end of the straight rod. The inclination angle of the steel cable is controlled by adjusting the length of the straight rod. The brake assembly 5 is used to control the speed of the brake block on the steel cable to prevent the maintenance personnel from being unable to control the brake block due to inertial acceleration. The lifting assembly 6 is used to hook the brake block to increase its distance from the ground. The side cover 4 is provided with a first flange 41 and a second flange 42. The brake assembly 5 is installed on the first flange 41, and the lifting assembly 6 is installed at the connection between the first flange 41 and the second flange 42 On the surface, a communicating window 43 is provided on the surface opposite to the second flange 42, and the window 43 is used to install the carabiner 2 to hook the lifted brake block, so that the brake block is lifted to a certain height by the lifting assembly 6 and then locked with the carabiner, so that it is suspended under the side cover 4 and the side cover 4 is limited to rotate by its own weight. The end surface of the side cover 4 facing the linear bearing 3 is provided with a groove 44 that abuts and limits the end of the linear bearing 3. The paired side covers 4 are fixedly connected to the second flange 42 by a locking piece. This arrangement enables the side covers 4 to move on the steel cable 1 with the linear bearing 3. The brake assembly 5 is arranged with a plurality of circumferential portions along the first flange 41. The vehicle assembly 5 includes a mounting frame 51 fixedly connected to the first flange 41, and a brake pad 52 hinged at the end of the mounting frame 51. A boss 45 with an external thread is provided on the end face of the first flange 41 facing the brake pad 52, and a sleeve 46 threadedly connected thereto is provided on the boss 45. A guide surface is provided on the end face of the brake pad 52 used to abut against the inner wall of the sleeve 46. When the brake needs to be tightened, the sleeve 46 is rotated to move along the direction of the brake pad 52. The inner wall of the sleeve 46 squeezes the circumferentially arranged brake pad 52 to press it against the steel cable. The threaded sleeve 46 enables it to be self-locking to prevent it from retreating during the tightening process and causing the brake to fail.

[0016] The mounting frame 51 is provided with positioning posts 53 on the surfaces opposite to the brake pad 52, and a spring 54 is provided between the positioning posts 53. The two ends of the spring 54 are respectively sleeved on the positioning posts 53. The spring 54 is provided to make the brake pad 52 always in a state of abutting the steel cable, and can always cooperate with the sleeve 46 for locking, so as to avoid the brake pad 52 being in a flipped state at certain angles, resulting in the sleeve 46 and the brake pad 52 being unable to cooperate. The connection part of the mounting frame 51 for fixing the first flange 41 is semi-enclosed. This arrangement improves the reliability of fixation by locking the two end faces through the locking member, and also forms a bulge, which serves as a leverage point for maintenance personnel when lifting the brake block. To facilitate the rotation of the sleeve 46, a number of ribs are arranged on the outer diameter surface of the sleeve 46 along its circumference. The ribs are provided to enable maintenance personnel to better apply force to the rotation of the sleeve 46.

[0017] The lifting assembly 6 includes a first limit block 61 and a belt 62 arranged along the circumference of the side cover 4. The first limit block 61 is integrally arranged with the side cover 4 and is used for winding and clamping the belt 62. A bending portion is provided on the first limit block 61. The belt 62 is used to cooperate with the first limit block 61. A convex portion 621 and a concave portion 622 that cooperate with the bending portion are provided on the front side. The convex portion 621 and the concave portion 622 form a clamping state with interference when cooperating with the bending portion. The convex portion 621 and the concave portion 622 are arranged along the length direction of the belt 62. A hook for hooking is provided at the end of the belt 62. The belt 62 is hooked with the lifting ring on the gate block through the hook. The side cover 4 is rotated so that the convex portion 621 and the concave portion 622 on the belt 62 are clamped and matched with the bending portion one by one through deformation, and the belt 62 is wound to increase the height of the gate block. The cooperation of the bent portion with the convex portion 621 and the concave portion 622 can prevent the belt 62 from moving on the connecting surface of the side cover 4, and at the same time provide a buffering force when the gate block accidentally falls out of the hand. In order to further reduce the impact of the gate block on the ground caused by falling out of the hand, the back of the belt 62 is provided with a second limit block 623 that cooperates with the convex portion 621 and the concave portion 622 after winding. After the front side of the first circle of the belt 62 is matched with the first limit block 61 one by one, the front side of the belt 62 is placed on the second limit block 623 on its back side and starts to cooperate with the convex portion 621 and the concave portion 622. The second limit block 623 is arranged along the length direction of the belt 62, and the second limit block 623 forms a clamping state with interference when cooperating with the convex portion 621 and the concave portion 622. Such a setting can continuously buffer the speed at which the gate block falls, and is prepared for prevention of unexpected situations.

[0018] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A portable wind turbine generator cabin maintenance and transportation device, comprising a steel cable and carabiners respectively fixed at both ends of the steel cable, characterized in that: It also includes a linear bearing sleeved on the steel cable, side covers sleeved on the linear bearing in pairs, a brake assembly and a lifting assembly installed on the side cover, the side cover is provided with a first flange and a second flange, the brake assembly is installed on the first flange, the lifting assembly is installed on the connecting surface between the first flange and the second flange, the end surface of the side cover facing the linear bearing is provided with a groove that abuts and limits the end of the linear bearing, the paired side covers are fixedly connected to the second flange by a locking member, and a plurality of brake assemblies are arranged along the circumference of the first flange, the brake assembly includes a mounting frame fixedly connected to the first flange, and a brake pad hinged at the end of the mounting frame, a boss with an external thread is provided on the end surface of the first flange facing the brake pad, a sleeve threadedly connected to the boss is provided on the boss, and a guide surface is provided on the end surface of the brake pad for abutting against the inner wall of the sleeve.

2. The portable wind turbine generator in-cabin maintenance and transportation device according to claim 1 is characterized in that: Positioning posts are arranged on the surfaces of the mounting frame opposite to the brake pads, and springs are arranged between the positioning posts, with both ends of the springs respectively sleeved on the positioning posts.

3. The portable wind turbine generator in-cabin maintenance and transportation device according to claim 2 is characterized in that: The connection portion of the mounting frame for fixing the first flange is semi-enclosed.

4. The portable wind turbine generator in-cabin maintenance and transportation device according to claim 2 is characterized in that: The outer diameter surface of the sleeve is provided with a plurality of convex ribs along its circumference.

5. The portable wind turbine generator in-cabin maintenance and transportation device according to claim 1 is characterized in that: The lifting assembly includes a first limit block and a belt arranged along the circumference of the side cover. The first limit block is provided with a bending portion. The belt is used to cooperate with the first limit block. The front side is provided with a convex portion and a concave portion that cooperate with the bending portion. The convex portion and the concave portion form a clamping state with interference when cooperating with the bending portion. The convex portion and the concave portion are arranged along the length direction of the belt. The end of the belt is provided with a hook for hooking.

6. The portable wind turbine generator in-cabin maintenance and transportation device according to claim 5 is characterized in that: The back of the belt is provided with a second limit block which cooperates with the convex part and the concave part after winding. The second limit block is arranged along the length direction of the belt, and forms a clamping state with interference when cooperating with the convex part and the concave part.

7. The portable wind turbine generator in-cabin maintenance and transportation device according to claim 5 is characterized in that: A communicating window is provided on the opposite surface of the second flange, and the window is used for installing a carabiner to hook the lifted brake block.

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