Heavy-load fan impeller supporting device

Abstract

The utility model provides a heavy-load fan impeller supporting device, and relates to the technical field of wind power generation. Comprising a supporting base; the multiple supporting piers are evenly distributed on the supporting base in the circumferential direction, the upper surfaces of the supporting piers serve as supporting faces, multiple rows of kidney-shaped connecting holes are formed in the supporting faces, and the multiple rows of kidney-shaped connecting holes in the multiple supporting piers are mutually enclosed to form multiple fixing rings matched with a hub of a fan impeller in size; when the fan impeller is placed on the supporting piers, a hub of the fan impeller is in butt joint with a fixing ring defined by the kidney-shaped connecting holes, so that the fan impeller is connected with the supporting piers through the corresponding fixing rings; the upper surface of each supporting buffer piece serves as a bearing face, the bearing faces can move up and down in the vertical direction, and the bearing faces bear the fan impeller before the fan impeller is placed on the supporting piers. The problem that in the prior art, after the impeller is suspended, potential safety hazards are large when the impeller is assembled, disassembled or maintained is solved.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, specifically to a heavy-duty wind turbine impeller support device. Background Technology

[0002] Currently, during the installation of high-power wind turbine impellers, it is necessary to transfer the impeller hub from the vehicle to the hub support fixture on the ground for dismantling and transportation, blade installation, and impeller connection bolt installation. Traditionally, these tasks are mostly completed by using a tower crane to suspend the impeller in mid-air, with personnel working below the impeller, which poses safety hazards.

[0003] Impellers mainly consist of hubs and blades. Heavy-duty impellers have a large mass and include blades. In windy weather, impellers not only have their own weight but also have to withstand alternating loads from the wind. The wind can even blow the impeller out of shape, posing a great danger to the assembly, disassembly, and maintenance of the impeller.

[0004] Therefore, there is an urgent need for a device that can solve at least one of the above problems. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a heavy-duty wind turbine impeller support device to solve the problem of significant safety hazards when assembling, disassembling, or repairing the impeller after suspending it in the prior art.

[0006] To achieve the above objectives, this utility model provides a heavy-duty fan impeller support device, the heavy-duty fan impeller support device comprising:

[0007] Support base;

[0008] Multiple support blocks are evenly distributed on the support base along the circumference. The upper surface of the support block serves as the support surface, and multiple rows of waist-shaped connecting holes are opened on the support surface. The multiple rows of waist-shaped connecting holes on the multiple support blocks surround each other to form multiple fixing rings that fit the hub size of the fan impeller. When the fan impeller is placed on the support block, the fan impeller hub is connected to a fixing ring surrounded by waist-shaped connecting holes, so that the fan impeller and the multiple support blocks are connected through the corresponding fixing rings.

[0009] Multiple support buffers are vertically installed on the support base. There is one support buffer between two adjacent support piers. The upper surface of each support buffer serves as a bearing surface. The bearing surface can move up and down in the vertical direction. The initial position of the bearing surface of the support buffer in the vertical direction is higher than the upper surface of the support pier. The support buffer supports the fan impeller through the bearing surface before the fan impeller is placed on the support pier.

[0010] Specifically, each support buffer includes a vertically arranged elastic element that can extend or shorten in the vertical direction, and the bearing surface of each support buffer moves up and down in the vertical direction through the elastic element.

[0011] Specifically, each support buffer also includes: a buffer seat, a buffer sleeve, and a support rod;

[0012] The buffer seat is mounted on the support base;

[0013] The buffer sleeve is a hollow cylindrical structure, vertically mounted on the buffer seat and fixed at one end to the buffer seat;

[0014] The lower end of the support rod is slidably disposed inside the buffer sleeve and can move vertically within the buffer sleeve; the upper end face of the support rod serves as the bearing surface.

[0015] The elastic element is disposed inside the buffer sleeve, located between the lower end face of the support rod and the buffer seat.

[0016] Specifically, the heavy-duty wind turbine impeller support device further includes: an annular guide rail, which is set on the support base. Each support pier has a positioning groove that fits the annular guide rail on the side that is in contact with the support base. Multiple support piers are evenly distributed along the circumference of the annular guide rail, and the positioning groove of each support pier is embedded in the annular guide rail.

[0017] Specifically, the heavy-duty wind turbine impeller support device further includes: multiple sets of blade support assemblies, all of which are movably connected to the support base and are used to support the blades of the wind turbine impeller placed on the support pier.

[0018] Specifically, each blade support assembly includes: a support arm and a support head;

[0019] One end of the support arm is rotatably connected to the support base, and the other end is connected to the support head. When the fan impeller is placed on the support pier, the support arm is rotated so that the support head moves to below the blades of the fan impeller, so as to support the blades of the fan impeller through the support head.

[0020] Specifically, each blade support assembly also includes a first adjusting pad disposed on the support head for contacting the blades of the wind turbine impeller placed on the support pier.

[0021] Specifically, the first adjustment pad is made of a flexible material.

[0022] Specifically, the heavy-duty wind turbine impeller support device also includes: a level that can be detachably mounted on the support base, used to detect the flatness of the upper surface of each support pier.

[0023] Specifically, the support base is composed of multiple I-beams connected together.

[0024] The heavy-duty wind turbine impeller support device provided by this utility model has multiple support blocks evenly distributed circumferentially on the support base. The upper surface of the support blocks serves as the support surface. Multiple rows of waist-shaped connecting holes are opened on the support surface of each support block. These multiple rows of waist-shaped connecting holes on the support blocks form multiple fixing rings that fit the hub size of the wind turbine impeller. When the wind turbine impeller is placed on the support surface, a matching fixing ring is selected according to the hub size of the wind turbine impeller to fix the hub to the support block through the fixing ring, which facilitates the subsequent disassembly or installation of the blades and hub. Before placing the wind turbine impeller on the support surface of the support block, in order to prevent the wind turbine impeller from falling suddenly onto the support surface due to unstable lowering speed control during hoisting and lowering of the wind turbine impeller to the support surface, thus causing damage to the wind turbine impeller, multiple support buffers are set on the support base. The bearing surface of the buffer can move vertically up and down. The initial position of the bearing surface in the vertical direction is higher than that of the support surface. In this way, before the fan impeller is lowered onto the support surface, it first contacts the bearing surface of the support buffer. The bearing surface first supports the fan impeller to play a buffering role. As the bearing surface slowly descends, the fan impeller is slowly placed onto the support surface, preventing the fan impeller from falling directly onto the support surface. This protects the fan impeller and the support device, and also ensures production safety. It solves the problem of the large safety hazards when assembling, disassembling or repairing the impeller after suspending it in the existing technology. At the same time, the waist-shaped connecting hole set on the support pier forms a fixing ring, which can match the fan impeller of different sizes for assembly, disassembly or repair work on the heavy-duty fan impeller support device provided in this application.

[0025] Other features and advantages of this utility model embodiment will be described in detail in the following detailed description section. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a structural schematic diagram of the heavy-duty fan impeller support device provided by this utility model;

[0028] Figure 2 This is a schematic diagram of the installation of the support base and support pier in the heavy-duty wind turbine impeller support device provided by this utility model.

[0029] Explanation of reference numerals in the attached figures

[0030] 1-Support base; 2-Support block; 3-Support buffer component; 4-Annular guide rail; 5-Blade support assembly; 32-Buffer seat; 33-Buffer sleeve; 34-Support rod; 35-Second adjusting pad; 51-Support arm; 52-Support head. Detailed Implementation

[0031] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0032] Figure 1 This is a structural schematic diagram of a heavy-duty wind turbine impeller support device; Figure 2 This is a schematic diagram of the installation of the support base and support pier in the heavy-duty wind turbine impeller support device.

[0033] like Figures 1-2 As shown, this utility model provides a heavy-duty fan impeller support device, which includes:

[0034] Support base 1;

[0035] Multiple support blocks 2 are evenly distributed on the support base 1 along the circumference. The upper surface of the support block 2 serves as the support surface, and multiple rows of waist-shaped connecting holes are opened on the support surface. The multiple rows of waist-shaped connecting holes on the multiple support blocks 2 surround each other to form multiple fixing rings that fit the hub size of the fan impeller. When the fan impeller is placed on the support block 2, the fan impeller is connected to the multiple support blocks 2 through the corresponding fixing rings by aligning the hub of the fan impeller with a fixing ring surrounded by the waist-shaped connecting holes.

[0036] Multiple support buffers 3 are vertically installed on the support base 1. There is one support buffer 3 between two adjacent support piers 2. The upper surface of each support buffer 3 serves as a bearing surface. The bearing surface can move up and down in the vertical direction. The initial position of the bearing surface of the support buffer 3 in the vertical direction is higher than the upper surface of the support pier 2. The support buffer 3 supports the fan impeller through the bearing surface before the fan impeller is placed on the support pier 2.

[0037] The heavy-duty fan impeller support device provided by this utility model has multiple support blocks 2 arranged circumferentially on a support base 1. The upper surface of the support blocks 2 serves as a support surface, and the fan impeller is placed on the support surface of the multiple support blocks 2. When the fan impeller is hoisted onto the support surface, in order to avoid uneven speed at which the fan impeller is lowered onto the support surface, causing the fan impeller to suddenly fall onto the support surface and damage both the fan impeller and the support blocks 2, multiple support buffers 3 are also provided on the support base 1. The support buffers 3 are vertically arranged on the support base 1, and the bearing surface of the support buffer 3 can support the fan impeller. The bearing surface can move up and down in the vertical direction. The initial position of the bearing surface in the vertical direction is higher than the support surface. In this way, before the fan impeller is hoisted onto the support surface of the support blocks 2, the bearing surface first contacts the fan impeller to play a buffering role and avoid uneven speed at which the fan impeller is lowered onto the support surface. After the impeller hub is placed on the support surface of the upper support pier 2, to facilitate subsequent assembly, disassembly, or maintenance, the impeller is temporarily fixed to the support pier 2 using a fixing ring that matches the size of the impeller hub. A bolt and nut structure can be used to fix the impeller to the support pier 2 via the fixing ring. The bolt thread passes through the corresponding waist-shaped connecting hole on the fixing ring and the through hole on the hub before connecting to the nut, thus temporarily fixing the impeller. This ensures safety during subsequent assembly, disassembly, or maintenance, solving the problem of significant safety hazards in existing technologies where the impeller is suspended during assembly, disassembly, or maintenance. Furthermore, the fixing ring formed by the waist-shaped connecting hole on the support pier can accommodate impellers of different sizes for assembly, disassembly, or maintenance using the heavy-duty impeller support device provided in this application.

[0038] In order to provide a buffering effect when bearing the impeller of the fan by means of the bearing surface of the support buffer 3, each support buffer 3 includes a vertically arranged elastic element that can extend or shorten in the vertical direction, and the bearing surface of each support buffer 3 can move up and down in the vertical direction by means of the elastic element.

[0039] Each support buffer 3 also includes: a buffer seat 32, a buffer sleeve 33, and a support rod;

[0040] The buffer seat 32 is mounted on the support base 1;

[0041] The buffer sleeve 33 is a hollow cylindrical structure, vertically mounted on the buffer seat 32 and fixed at one end to the buffer seat 32;

[0042] The lower end of the support rod 34 is slidably disposed in the buffer sleeve 33 and can move vertically within the buffer sleeve 33. The upper end face of the support rod 34 serves as the bearing surface.

[0043] The elastic element is disposed inside the buffer sleeve 33, located between the lower end of the support rod 34 and the buffer seat 32.

[0044] like Figure 1 As shown, a buffer seat 32 is mounted on a support base 1. A buffer groove, matching the size of an annular guide rail 4, is formed on the contact surface between the buffer seat 32 and the support base 1. When the buffer seat 32 is mounted on the support base 1, the buffer groove is engaged with the annular guide rail 4. The cooperation between the annular guide rail 4 and the buffer groove improves the installation accuracy of the buffer seat 32. A buffer sleeve 33 is mounted on the buffer seat 32. The lower end of the support rod 34 is slidably mounted inside the buffer sleeve 33, while the upper end of the support rod 34 is exposed outside the buffer sleeve 33. The upper end face of the support rod 34 serves as the receiving surface. An elastic element is mounted inside the buffer sleeve 33 between the lower end face of the support rod 34 and the buffer seat 32. Both ends of the elastic element are connected to the buffer sleeve 33 and the buffer seat 32, respectively. The elastic element can be any one of a spring, rubber spring, air spring, or rubber support. Under the action of the elastic force generated when the elastic element extends or shortens, the elastic element drives the support rod 34 to move vertically up and down within the buffer sleeve 33, synchronously... The bearing surface moves vertically up and down. To ensure that the bearing surface of each support buffer 3 can support the fan impeller, a second adjusting pad 35 can be set on the bearing surface of each support buffer 3. The second adjusting pad 35 compensates for any possible height difference between the bearing surfaces of multiple support buffers 3, ensuring that the bearing surface of each support buffer 3 can support the fan impeller simultaneously. Before supporting the fan impeller, the elastic element connected to the support rod 34 is in its original state. At this time, the elastic element is not under force, and the bearing surface of the support rod 34 is in its initial position in the vertical direction. The initial position of the bearing surface is higher than the upper surface of the support pier 2, thus ensuring that the bearing surface of the support buffer 3 can support the fan impeller before the upper surface of the support pier 2. When the bearing surface supports the fan impeller, the elastic element is compressed. Under the action of the reaction force of the elasticity, it plays a buffering role, reducing the speed at which the fan impeller falls to the support surface and avoiding the possibility of the fan impeller suddenly falling and colliding with the support pier.

[0045] like Figure 1 As shown, in order to quickly install multiple support blocks 2 on the support base 1, the heavy-duty wind turbine impeller support device further includes: an annular guide rail 4, which is set on the support base 1. Each support block 2 has a positioning groove that fits with the annular guide rail 4 on the side that is in contact with the support base 1. Multiple support blocks 2 are evenly distributed along the circumference of the annular guide rail 4, and the positioning groove of each support block 2 is embedded in the annular guide rail 4.

[0046] An annular guide rail 4 is set on the support base 1, and a positioning groove is opened on each support pier 2. The positioning groove can be locked into the annular guide rail 4. The annular guide rail 4 can quickly install multiple support piers 2 along the circumference, which improves the installation efficiency of the support piers 2. The annular guide rail 4 also improves the installation accuracy of each support pier 2.

[0047] After the impeller is placed on the support pier 2, the blades of the impeller are always unsupported. For production safety, the heavy-duty impeller support device also includes multiple sets of blade support assemblies 5, which are movably connected to the support base 1 and are used to support the blades of the impeller placed on the support pier 2.

[0048] Each blade support assembly 5 includes: a support arm 51 and a support head 52;

[0049] One end of the support arm 51 is rotatably connected to the support base 1, and the other end is connected to the support head 52. When the fan impeller is placed on the support block 2, the support arm 51 is rotated so that the support head 52 moves to below the blades of the fan impeller, so as to support the blades of the fan impeller through the support head 52.

[0050] Each blade support assembly 5 also includes a first adjustment pad disposed on the support head 52 for contacting the blades of the wind turbine impeller placed on the support pier 2.

[0051] The first adjustment pad is made of a flexible material.

[0052] like Figure 1 As shown, one end of the support arm 51 of the blade support assembly 5 is rotatably mounted on the support base 1, and the other end is equipped with a support head 52. When the support head 52 needs to support the blades of the wind turbine impeller, the support arm 51 is controlled to rotate to move the support head 52 under the blade, thereby supporting the blade and better protecting it. In order to avoid the support head 52 failing to support the blade due to dimensional deviation, a first adjusting pad is provided on the support head 52. The distance between the support head 52 and the blade is adjusted by the first adjusting pad to ensure that the blade can be supported. In order to avoid scratching the blade surface, the first adjusting pad is made of a flexible material, such as rubber or cloth. At the same time, the first adjusting pad made of flexible material has a certain elasticity, which can better fit the shape of the blade surface.

[0053] To ensure that the weight of the wind turbine impeller is evenly distributed on each support pier 2, the flatness of the upper surface of each support pier 2 is checked with a level before placing the wind turbine impeller on the support surface, ensuring that each support pier 2 bears a uniform force when supporting the wind turbine impeller. The heavy-duty wind turbine impeller support device also includes: a level detachably mounted on the support base 1, used to check the flatness of the upper surface of each support pier 2.

[0054] like Figure 2 As shown, the support base 1 is composed of multiple I-beams connected together.

[0055] The heavy-duty wind turbine impeller support device provided by this utility model has multiple support blocks evenly distributed circumferentially on the support base. The upper surface of the support blocks serves as the support surface. Multiple rows of waist-shaped connecting holes are opened on the support surface of each support block. These multiple rows of waist-shaped connecting holes on the support blocks form multiple fixing rings that fit the hub size of the wind turbine impeller. When the wind turbine impeller is placed on the support surface, a matching fixing ring is selected according to the hub size of the wind turbine impeller to fix the hub to the support block through the fixing ring, which facilitates the subsequent disassembly or installation of the blades and hub. Before placing the wind turbine impeller on the support surface of the support block, in order to prevent the wind turbine impeller from falling suddenly onto the support surface due to unstable lowering speed control during hoisting and lowering of the wind turbine impeller to the support surface, thus causing damage to the wind turbine impeller, multiple support buffers are set on the support base. The bearing surface of the buffer can move vertically up and down. The initial position of the bearing surface in the vertical direction is higher than that of the support surface. In this way, before the fan impeller is lowered onto the support surface, it first contacts the bearing surface of the support buffer. The bearing surface first supports the fan impeller to play a buffering role. As the bearing surface slowly descends, the fan impeller is slowly placed onto the support surface, preventing the fan impeller from falling directly onto the support surface. This protects the fan impeller and the support device, and also ensures production safety. It solves the problem of the large safety hazards when assembling, disassembling or repairing the impeller after suspending it in the existing technology. At the same time, the waist-shaped connecting hole set on the support pier forms a fixing ring, which can match the fan impeller of different sizes for assembly, disassembly or repair work on the heavy-duty fan impeller support device provided in this application.

[0056] The optional embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, and these simple modifications all fall within the protection scope of the present utility model.

[0057] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the various possible combinations will not be described separately in this embodiment.

[0058] Furthermore, various different implementation methods of this utility model can be arbitrarily combined, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A heavy duty fan impeller support apparatus, characterized by, The heavy load fan impeller support device comprises: a support base (1); a plurality of support piers (2) are arranged on the support base (1) in a circumferential direction, the upper surface of the support pier (2) serves as a support surface, a plurality of rows of waist-shaped connecting holes are arranged on the support surface, the plurality of rows of waist-shaped connecting holes on the plurality of support piers (2) are enclosed to form a plurality of fixing rings matching the size of the hub of the fan impeller; when the fan impeller is placed on the support pier (2), the hub of the fan impeller is butted against a fixing ring enclosed by the waist-shaped connecting holes, so that the fan impeller is connected to the plurality of support piers (2) through the corresponding fixing ring; a plurality of support buffer members (3) are arranged vertically on the support base (1), one support buffer member (3) is arranged between adjacent two support piers (2), the upper surface of each support buffer member (3) serves as a receiving surface, the receiving surface can move up and down in the vertical direction, the initial position of the receiving surface of the support buffer member (3) in the vertical direction is higher than the upper surface of the support pier (2), and the support buffer member (3) bears the support fan impeller through the receiving surface before the fan impeller is placed on the support pier (2).

2. The heavy duty fan impeller support apparatus of claim 1 wherein, Each support buffer member (3) comprises an elastic member arranged vertically, the elastic member can be elongated or shortened in the vertical direction, and the receiving surface of each support buffer member (3) moves up and down in the vertical direction through the elastic member.

3. The heavy duty fan impeller support apparatus of claim 2 wherein, Each support buffer member (3) further comprises a buffer seat (32), a buffer sleeve (33) and a support rod (34); The buffer seat (32) is arranged on the support base (1); The buffer sleeve (33) is a hollow cylindrical structure, arranged vertically on the buffer seat (32) and fixed at one end to the buffer seat (32); The lower end of the support rod (34) is slidably arranged in the buffer sleeve (33) and can move in the vertical direction in the buffer sleeve (33), and the upper end face of the support rod (34) serves as a receiving surface; The elastic member is arranged in the buffer sleeve (33) between the lower end face of the support rod (34) and the buffer seat (32).

4. The heavy duty fan impeller support apparatus of claim 1 wherein, The heavy load fan impeller support device further comprises an annular guide rail (4) arranged on the support base (1), a positioning groove matching the annular guide rail (4) is arranged on one side of each support pier (2) connected to the support base (1), the plurality of support piers (2) are arranged in the circumferential direction of the annular guide rail (4), and the positioning groove of each support pier (2) is clamped on the annular guide rail (4).

5. The heavy duty fan impeller support apparatus of claim 1 wherein, The heavy load fan impeller support device further comprises a plurality of blade support assemblies (5) movably connected to the support base (1) and used for supporting the blades of the fan impeller placed on the support pier (2).

6. The heavy duty fan impeller support apparatus of claim 5 wherein, Each blade support assembly (5) comprises a support arm (51) and a support head (52); One end of the support arm (51) is rotatably connected to the support base (1), the other end is connected to the support head (52), and when the fan impeller is placed on the support pier (2), the support head (52) is moved to below the blade of the fan impeller by rotating the support arm (51), so as to support the blade of the fan impeller through the support head (52).

7. The heavy duty fan impeller support apparatus of claim 5 wherein, Each blade support assembly (5) further comprises a first adjusting pad arranged on the support head (52) and used to contact the blade of the fan impeller placed on the support pier (2).

8. The heavy duty fan impeller support apparatus of claim 7 wherein, The first adjusting pad is made of flexible material.

9. The heavy duty fan impeller support apparatus according to claim 1, wherein, The heavy-load fan impeller support device further comprises a level gauge detachably arranged on the support base (1) and used to detect the flatness of the upper surface of each support pier (2).

10. The heavy duty fan impeller support apparatus according to claim 1, wherein, The support base (1) is composed of a plurality of I-shaped steel connecting members.

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