An ultra-high altitude fan equipment hoisting collision warning device

Abstract

The present invention relates to the field of auxiliary devices for fan installation, and discloses an early warning device for hoisting collision of ultra-high altitude fan equipment, including: a main cylinder, which is a cylindrical shape with a sealed bottom, and a signal wave emission ring and a signal wave detection ring are sleeved outside the main cylinder; legs, which are L-shaped rods, and there are at least three of them, evenly distributed at the bottom outside the main cylinder, and suction cups are provided at the bottom of the legs to fix the main cylinder on the outer wall of the fan equipment; a pushing member, which is arranged at the bottom of the main cylinder and is used to push the suction cup away from the fan equipment; a slow-falling member, which is arranged at the top of the main cylinder and is used for the slow descent of the warning device after being pushed away from the fan equipment; a bidirectional drive motor, which is vertically arranged in the lower half of the main cylinder and is used to control the start of the pushing member and the slow-falling member. The present invention realizes the process of "emission - reflection - reception - analysis" of signal waves by using the signal wave emission ring and the signal wave detection ring, quickly warns of possible collisions during the hoisting process of the fan equipment, and avoids damage to the fan caused by collisions.

Description

Technical Field

[0001] The present invention relates to the field of auxiliary devices for fan installation, and particularly to a collision warning device for hoisting ultra-high altitude fan equipment. Background Art

[0002] With the rapid development of wind power generation technology, the number of large-scale wind turbine generators has gradually increased. The working principle of a wind turbine generator is to use wind power to drive the rotation of the windmill blades, and then increase the rotation speed through a speed increaser to promote the generator to generate electricity. Each equipment component of the wind turbine generator includes a tower barrel, a nacelle, a generator, a hub, blades, a control cabinet, etc. By assembling the above-mentioned fan equipment, a complete wind turbine generator is finally formed.

[0003] Large-scale wind turbine generators are relatively large in size, and generally a lifting beam is used to maintain balance during the hoisting process. However, most of the lifting beams used for hoisting wind turbine generators are of a single cross-beam structure and do not have a center-of-gravity adjustment function. It is necessary to design a tooling on the component to be hoisted in advance to make the hoisting process meet the smoothness requirements.

[0004] The construction hoisting of a wind turbine usually includes the hoisting of the tower barrel, the hoisting of the nacelle and the motor, and the overall hoisting after the assembly of the fan blades and the hub. First, the tower barrel is hoisted and installed. The crane hoists the tower barrel section by section to the designed height, and then hoists and installs the nacelle and the motor above the tower barrel. Then, the three fan blades and the hub are assembled on the ground to form an impeller assembly, and then the assembled impeller assembly is hoisted as a whole and docked and installed with the nacelle assembly. This process is usually completed at an altitude of more than 80 meters. The impeller diameter is 100 meters, and the weight exceeds 50 tons. Moreover, it is greatly affected by wind load, which is the construction condition with the highest risk in wind power installation. After the impeller assembly is hoisted to the nacelle position in the air, the position of this huge impeller assembly in the air is adjusted by operating the crane to achieve alignment with the nacelle assembly in the up-down and left-right positions. Then, the cabin staff rotates the connecting flange to make the bolts around the hub penetrate into the screw holes. During this hoisting process, the impeller is always in the air hoisting state, extremely easy to swing, and greatly affected by wind load, and is more likely to cause mutual collision and damage. Especially when hoisting and installing large fan equipment such as generators and impellers in ultra-high altitude areas such as Tibet (altitude between 3300 and 5500 m), due to low visibility in foggy days at ultra-high altitudes, it is very easy to collide during the hoisting process of the fan equipment, causing serious damage to the equipment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a collision warning device for hoisting ultra-high altitude fan equipment. In the prior art, during the hoisting process of fan equipment in high altitude areas, it is easily affected by the visibility in foggy days, resulting in the problem that collisions are likely to occur and equipment damage is caused.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is as follows: An ultra-high altitude fan equipment hoisting collision warning device, comprising:

[0007] A main cylinder, which is a cylinder with a sealed bottom. A signal wave emission ring and a signal wave detection ring are sleeved outside the main cylinder;

[0008] Legs, which are inverted L-shaped rods. There are at least three legs, which are evenly distributed at the bottom outside of the main cylinder. Suction cups are provided at the bottom of the legs to fix the main cylinder on the outer wall of the fan equipment;

[0009] A top push member, which is arranged at the bottom of the main cylinder and is used to push the suction cup away from the fan equipment;

[0010] A slow-falling member, which is arranged at the top of the main cylinder and is used for the slow descent of the warning device after it is pushed away from the fan equipment;

[0011] A bidirectional drive motor, which is vertically arranged in the lower half of the main cylinder. The lower output shaft of the bidirectional drive motor is connected to the top push member, and the upper output shaft is connected to the slow-falling member;

[0012] The top push member includes a fixed cylinder fixed to the bottom of the main cylinder and concentric with the main cylinder. The inner wall of the fixed cylinder is provided with a vertical first guiding protrusion; it also includes a top push cylinder arranged in the fixed cylinder and having a vertical first guiding groove on the outer side wall. A threaded through hole is provided on the axis at the center of the top push cylinder; the lower output shaft of the bidirectional drive motor penetrates through the center of the bottom of the main cylinder and extends out, and is threadedly connected to the top push cylinder; the threads on the lower output shaft of the bidirectional drive motor are arranged in the opposite direction to the threads on the upper output shaft of the bidirectional drive motor;

[0013] The slow-falling member includes a sealing cylinder fixed to the upper half inside the main cylinder. The bottom of the sealing cylinder is sealed by a movable plate, and the movable plate slides up and down inside the cylinder body of the sealing cylinder in a sealed state under the drive of the upper output shaft of the bidirectional drive motor; it also includes a top cover covering the top of the sealing cylinder, and an elastic material retaining ring is provided on the outer side wall of the top cover; an inwardly converging converging section is provided at the top of the main cylinder, and the top cover is clamped inside the converging section of the main cylinder through the retaining ring; an inner cylinder with a sealed bottom and an open top is also fixed inside the sealing cylinder, and a parachute bag is arranged inside the inner cylinder, and the parachute bag is connected to the top cover through a pull rope.

[0014] Furthermore, the top push cylinder further includes an extrusion plate and a bottom plate sequentially arranged at the bottom of the cylinder body from top to bottom. The extrusion plate and the bottom plate are bonded, and the bottom plate is made of a soft material.

[0015] Furthermore, the fixed cylinder is fixedly connected to the lower half of the leg through a transverse support rod.

[0016] Further, two vertically inwardly recessed second guiding grooves are symmetrically provided at the edge of the movable plate, and a set of inwardly protruding second guiding protrusions are provided on the inner side wall of the sealing cylinder, and the second guiding protrusions are engaged with the second guiding grooves; a through hole with internal threads is also provided at the center of the movable plate, and is connected to the upper output shaft of the bidirectional driving motor through a threaded connection.

[0017] Further, rubber sealing gaskets are fixed on the outer side wall of the movable plate and the inner wall of the second guiding groove.

[0018] Particularly, it further includes a horizontal fixing ring sleeved outside the main cylinder, and a buffer layer is wrapped on the horizontal fixing ring.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] By using the signal wave emitting ring and the signal wave detecting ring to realize the process of "emission - reflection - reception - analysis" of the signal wave, and using the remote device in the hands of the ground staff, a quick warning can be given to the possible collisions during the hoisting process of the fan equipment under the condition of limited vision, effectively solving the problem that the line of sight is blocked due to factors such as fog in high-altitude areas, which in turn causes damage to the fan due to collisions. At the same time, the device of the present invention has a simple structure, quick installation and combination, can realize the smooth recovery of the device by using the slow-falling component, and has a high utilization rate of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention.

[0022] Figure 2 is a schematic structural diagram of the top-pushing member of the present invention.

[0023] Figure 3 is a schematic cross-sectional structural diagram of the present invention.

[0024] Figure 4 is Figure 3 the enlarged structural diagram at A in

[0025] The interpretations of the reference numerals in the drawings are as follows: main cylinder - 1; fixed cylinder - 11; first guiding protrusion - 12; first guiding groove - 13; top-pushing cylinder - 14; extrusion plate - 15; bottom plate - 16; horizontal support rod - 17; horizontal fixing ring - 18; signal wave detecting ring - 2; leg - 3; suction cup - 31; signal wave emitting ring - 4; top-pushing member - 5; slow-falling member - 6; sealing cylinder - 61; movable plate - 62; top cover - 63; retaining ring - 64; inner cylinder - 65; parachute bag - 66; pull rope - 67; second guiding groove - 68; second guiding protrusion - 69; bidirectional driving motor - 7; lower output shaft - 71; upper output shaft - 72. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described, so as to have a further understanding of the concept of the present invention, the technical problems to be solved, the technical features constituting the technical solutions, and the technical effects brought about.

[0027] As shown in Figures 1 to 4 the figure, a collision warning device for hoisting an ultra-high altitude fan device includes:

[0028] A main cylinder 1, which is a cylindrical shape with a sealed bottom. A signal wave emission ring 4 and a signal wave detection ring 2 are sleeved outside the main cylinder 1;

[0029] Legs 3, which are inverted L-shaped rods, and there are at least three of them, evenly distributed at the bottom outside the main cylinder 1. A suction cup 31 is provided at the bottom of the legs 3 to fix the main cylinder 1 on the outer wall of the fan device;

[0030] A pushing member 5 is arranged at the bottom of the main cylinder 1 and is used to push the suction cup 31 away from the fan device;

[0031] A slow-falling member 6 is arranged at the top of the main cylinder 1 and is used for the slow descent of the warning device after it is pushed away from the fan device;

[0032] A bidirectional drive motor 7 is vertically arranged in the lower half of the main cylinder 1. The lower output shaft 71 of the bidirectional drive motor 7 is connected to the pushing member 5, and the upper output shaft 72 is connected to the slow-falling member 6.

[0033] During the use of the device of the present invention, the entire device is firmly adsorbed on the surface of the fan device to be installed through a plurality of suction cups 31, so that the device moves along with the hoisting of the fan device. During the hoisting of the fan device, the signal wave emission ring 4 continuously emits signal waves. When the signal waves hit an object at a relatively close distance or approach the installation position, the signal waves are reflected and detected by the signal wave detection ring 2. The signal is transmitted to the remote control device in the hands of the staff on the ground through the signal wave detection ring 2, so as to achieve the collision warning effect during the hoisting of the fan device in the case of unclear vision and facilitate adjusting the hoisting speed of the fan device.

[0034] As a preferred embodiment, the pushing member 5 includes a fixed cylinder 11 fixed to the bottom of the main cylinder 1 and concentric with the main cylinder 1. The inner wall of the fixed cylinder 11 is provided with a vertical first guiding protrusion 12; it also includes a pushing cylinder 14 arranged in the fixed cylinder 11 and having a vertical first guiding groove 13 on the outer side wall. A threaded through hole is provided on the axis at the center of the pushing cylinder 14; the lower output shaft 71 of the bidirectional drive motor 7 passes through the center of the bottom of the main cylinder 1 and extends out, and is threadedly connected to the pushing cylinder 14; the threads on the lower output shaft 71 of the bidirectional drive motor 7 are arranged in the opposite direction to the threads on the upper output shaft 72 of the bidirectional drive motor 7.

[0035] This embodiment provides a specific structure of the pushing member 5. In this embodiment, the fixed cylinder 11 is fixed to the bottom of the main cylinder 1, and a first guiding protrusion 12 is provided on the inner wall of the fixed cylinder 11. The pushing cylinder 14 with a first guiding groove 13 moves up and down in the fixed cylinder 11 through the cooperation of the first guiding groove 13 and the first guiding protrusion 12 without rotation. The threaded through hole at the central axis of the pushing cylinder 14 is threadedly connected to the lower output shaft 71 of the bidirectional driving motor 7. When the bidirectional driving motor 7 is driven to rotate, the lower output shaft 71 rotates in the pushing cylinder 14 and drives the pushing cylinder 14 to move downward in the fixed cylinder 11, pressing tightly against the hoisting device so that the suction cup 31 is separated from the hoisting device.

[0036] As a further embodiment, the pushing cylinder 14 further includes a pressing plate 15 and a bottom plate 16 which are sequentially arranged from top to bottom at the bottom of the cylinder body. The pressing plate 15 and the bottom plate 16 are adhesively bonded, and the bottom plate 16 is made of a soft material.

[0037] In this embodiment, the pressing plate 15 is fixedly connected to the pushing cylinder 14, and the bottom plate 16 is arranged at the bottom of the pressing plate 15, so as to transfer the downward pressing force of the pushing cylinder 14 to the bottom plate 16, and then transfer it to the fan device through the bottom plate 16. The bottom plate 16 made of a soft material can effectively prevent the pushing cylinder 14 from damaging the fan device during the pushing process.

[0038] As a further embodiment, the fixed cylinder 11 is fixedly connected to the lower half of the leg 3 through a transverse support rod 17.

[0039] In this embodiment, the fixed cylinder 11 is fixedly connected to the leg 3 through the transverse support rod 17, so that an observation gap is left between the fixed cylinder 11 and the upper main cylinder 1, which is convenient for the staff to observe the working conditions of the fixed cylinder 11 and the pushing cylinder 14 during the test, and ensures that the pushing cylinder 14 has sufficient length and thrust to push the device away.

[0040] As a preferred embodiment, the slow-falling member 6 includes a sealing cylinder 61 fixed to the upper half inside the main cylinder 1. The bottom of the sealing cylinder 61 is sealed by a movable plate 62. The movable plate 62 slides up and down inside the cylinder body of the sealing cylinder 61 under the drive of the upper output shaft 72 of the bidirectional driving motor 7 in a sealed state; it further includes a top cover 63 covering the top of the sealing cylinder 61, and an elastic material retaining ring 64 is provided on the outer side wall of the top cover 63; an inwardly converging section is provided at the top of the main cylinder 1, and the top cover 63 is clamped inside the converging section of the main cylinder 1 through the retaining ring 64; an inner cylinder 65 with a closed bottom and an open top is further fixed inside the sealing cylinder 61, and a parachute bag 66 is arranged inside the inner cylinder 65. The parachute bag 66 is connected to the top cover 63 through a pull rope 67.

[0041] This embodiment provides a specific structure of the slow - falling member 6. In this embodiment, the sealing cylinder 61 is fixed in the upper half inside the main cylinder 1. The bottom of the sealing cylinder 61 is sealed by the movable plate 62, and the top of the sealing cylinder 61 is sealed by the top cover 63. The top cover 63 is fixed to the top end of the sealing cylinder 61 through the retaining ring 64 on the side wall. The movable plate 62 slides upward under the drive of the upper output shaft 72 of the bidirectional drive motor 7, so that the air pressure inside the sealing cylinder 61 gradually increases, and then pushes the retaining ring 64 on the top cover 63 to deform, causing the top cover 63 to pop out from the top of the sealing cylinder 61 and the main cylinder 1. During this process, the parachute bag 66 placed inside the inner cylinder 65 is connected to the top cover 63 through the pull rope 67, so it will be taken out of the inner cylinder 65 and the main cylinder 1 together, and then unfolds to achieve the slow - speed landing of the device of the present invention, thus facilitating the recovery of the device of the present invention.

[0042] As a further embodiment, two vertically inward - recessed second guiding grooves 68 are symmetrically provided at the edge of the movable plate 62, and a set of inward - protruding second guiding protrusions 69 are provided on the inner side wall of the sealing cylinder 61. The second guiding protrusions 69 fit with the second guiding grooves 68; an internally - threaded through - hole is also provided at the center of the movable plate 62, and it is thread - connected with the upper output shaft 72 of the bidirectional drive motor 7.

[0043] In this embodiment, a specific connection method for driving the movable plate 62 by the bidirectional drive motor 7 is provided. Among them, the second guiding grooves 68 at the edge of the movable plate 62 serve as limit members, matching with the second guiding protrusions 69 on the inner side wall of the sealing cylinder 61 and restricting the rotation of the movable plate 62 when moving in the vertical direction. Through the threaded fit between the vertical internally - threaded through - hole at the center of the movable plate 62 and the upper output shaft 72, when the bidirectional drive motor 7 rotates, it drives the movable plate 62 to move in the vertical direction. During this process, since the thread directions on the upper output shaft 72 and the lower output shaft 71 of the bidirectional drive motor 7 are opposite, when the bidirectional drive motor 7 rotates, the movable plate 62 and the push cylinder 14 move asynchronously, that is, when the movable plate 62 moves upward, the push cylinder 14 moves downward, or when the movable plate 62 moves downward, the push cylinder 14 moves upward, so as to ensure that the pushing process is consistent with the process of pushing out the slow - falling component. During this process, since there needs to be a certain time difference between the pushing process of the device and the process of pushing out the slow - falling component, that is, after the device is pushed away from the fan component first, and then the top cover 63 and the parachute bag 66 are pushed out of the sealing cylinder 61. Therefore, the distance that the movable plate 62 moves upward when the slow - falling component is activated needs to be greater than the distance that the movable plate moves downward when the device is pushed away from the fan component, so as to ensure the activation sequence.

[0044] As a further embodiment, rubber sealing gaskets are fixed on the outer side wall of the movable plate 62 and the inner wall of the second guiding grooves 68.

[0045] In this embodiment, the outer sidewall of the movable plate 62 and the second guiding groove 68 are respectively matched with the inner sidewall of the rubber gasket sealing cylinder 61 and the second guiding protrusion 69 to ensure that the pressurized state inside the sealing cylinder 61 can be maintained during the movement of the movable plate 62.

[0046] As a preferred embodiment, it further includes a horizontal fixing ring 18 sleeved outside the main cylinder 1, and a buffer layer is wrapped on the horizontal fixing ring.

[0047] In this embodiment, by arranging the horizontal fixing ring 18 and the buffer layer outside the main cylinder 1, as a protective layer of the device of the present invention, it can avoid the device damage caused by the collision between the main cylinder 1 and the ground when the main cylinder 1 is placed horizontally due to external wind force and other factors during the recovery process, and can also avoid the damage of the fan equipment caused by the collision between the device of the present invention and the fan equipment.

[0048] The "connection" and "fixation" mentioned in the description of the present invention can be fixed connection, machining forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention should be understood according to the specific circumstances.

[0049] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the specific orientation that the device or element must have. Therefore, it cannot be understood as a limitation to the present invention.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ultra-high altitude wind turbine equipment hoisting collision warning device, characterized in that, Comprising: A main cylinder (1), which is in a cylindrical shape with a sealed bottom. A signal wave transmitting ring (4) and a signal wave detecting ring (2) are sleeved outside the main cylinder (1). Legs (3), which are inverted L-shaped rods. There are at least three legs (3) evenly distributed at the bottom outside of the main cylinder (1). A suction cup (31) is provided at the bottom of the legs (3) for fixing the main cylinder (1) on the outer wall of the fan equipment. A jacking member (5) is arranged at the bottom of the main cylinder (1) for jacking the suction cup (31) away from the fan equipment. A slow-falling member (6) is arranged at the top of the main cylinder (1) for slow descent after the warning device is jacked away from the fan equipment. A bidirectional driving motor (7) is vertically arranged in the lower half of the main cylinder (1). The lower output shaft (71) of the bidirectional driving motor (7) is connected to the jacking member (5), and the upper output shaft (72) is connected to the slow-falling member (6). The jacking member (5) includes a fixed cylinder (11) fixed to the bottom of the main cylinder (1) and concentric with the main cylinder (1). A vertical first guiding protrusion (12) is provided on the inner wall of the fixed cylinder (11). It also includes a jacking cylinder (14) arranged in the fixed cylinder (11) with a vertical first guiding groove (13) on the outer side wall. A threaded through hole is provided on the axis at the center of the jacking cylinder (14). The lower output shaft (71) of the bidirectional driving motor (7) passes through the center of the bottom of the main cylinder (1) and extends out, and is threadedly connected to the jacking cylinder (14). The threads on the lower output shaft (71) of the bidirectional driving motor (7) are arranged in the opposite direction to the threads on the upper output shaft (72) of the bidirectional driving motor (7). The slow-falling member (6) includes a sealing cylinder (61) fixed to the upper half inside the main cylinder (1). The bottom of the sealing cylinder (61) is sealed by a movable plate (62). The movable plate (62) slides up and down under the drive of the upper output shaft (72) of the bidirectional driving motor (7) in a sealed state of the cylinder body of the sealing cylinder (61). It also includes a top cover (63) covering the top of the sealing cylinder (61). An elastic material retaining ring (64) is provided on the outer side wall of the top cover (63). The top of the main cylinder (1) is provided with a converging section that converges inward. The top cover (63) is clamped inside the converging section of the main cylinder (1) through the retaining ring (64). An inner cylinder (65) with a sealed bottom and an open top is also fixed inside the sealing cylinder (61). A parachute bag (66) is arranged inside the inner cylinder (65). The parachute bag (66) is connected to the top cover (63) through a pull rope (67).

2. The collision warning device for hoisting an ultra-high altitude fan equipment according to claim 1, characterized in that, The jacking cylinder (14) further includes a pressing plate (15) and a bottom plate (16) sequentially arranged from top to bottom at the bottom of the cylinder body. The pressing plate (15) and the bottom plate (16) are adhesively bonded, and the bottom plate (16) is made of a soft material.

3. The collision warning device for hoisting an ultra-high altitude fan equipment according to claim 1, characterized in that, The fixed cylinder (11) is fixedly connected to the lower half of the legs (3) through a transverse support rod (17).

4. The ultra-high altitude fan equipment hoisting collision warning device according to claim 1, wherein, Two vertically inwardly recessed second guiding grooves (68) are symmetrically provided at the edge of the movable plate (62). A set of inwardly protruding second guiding protrusions (69) are provided on the inner side wall of the sealing cylinder (61), and the second guiding protrusions (69) are fitted with the second guiding grooves (68). An internally threaded through hole is also provided at the center of the movable plate (62), and is threadedly connected to the upper output shaft (72) of the bidirectional driving motor (7).

5. The ultra-high altitude fan equipment hoisting collision warning device according to claim 1, characterized in that, Rubber sealing gaskets are fixed on the outer side wall of the movable plate (62) and the inner wall of the second guiding groove (68).

6. The collision warning device for hoisting an ultra-high altitude fan equipment according to claim 1, characterized in that, It further includes a transverse fixing ring (18) sleeved outside the main cylinder (1), and a buffer layer is wrapped on the transverse fixing ring.

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