Flexible support device for a semi-direct-drive wind power transmission chain

Abstract

The application discloses a kind of semi-direct drive wind power transmission chain flexible support device, the flexible support device includes bottom plate, support frame is fixedly arranged on the bottom plate, lifting mechanism is fixedly installed on the bottom plate and located inside support frame, the top of the lifting mechanism is placed with elastic support mechanism, the top of the elastic support mechanism is fixedly connected with V-shaped support mechanism, flange type load cell for measuring the pressure of semi-direct drive wind power transmission chain is installed on the V-shaped support mechanism, multiple sets of guide mechanisms are symmetrically installed on the left and right sides of the support frame with the lifting mechanism as center, and the top of each set of guide mechanism is fixedly connected with the bottom of V-shaped support mechanism.The semi-direct drive wind power transmission chain flexible support device improves work efficiency and equipment utilization, and reduces production manufacturing cost.

Description

Technical Field

[0001] This invention belongs to the field of wind power equipment assembly, specifically relating to a flexible support device for a semi-direct drive wind power transmission chain. Background Technology

[0002] Wind energy is a clean, green, and renewable energy source that has been utilized for a long time, primarily through windmills for pumping water and grinding grain. People are more interested in how to use wind energy to generate electricity. Wind power generation is now a reality and has become an important new energy source globally. In the past decade, my country's wind power development has been particularly rapid, making it the third largest power source after coal and hydropower.

[0003] A typical semi-direct drive wind turbine transmission system consists of components such as a gearbox, main shaft, main shaft bearings, bearing housings, stator, and rotor. This type of transmission chain is long, wide, and heavy. When the main shaft module of the semi-direct drive wind turbine transmission chain is bolted to the gearbox, the gearbox is in a crane-lifting state. Then, a hydraulic wrench is used to tighten the double-ended studs, ensuring that the low-speed shaft of the gearbox is fully engaged with the main shaft stop. After four rounds of torque tightening, a feeler gauge is used to check the engagement of the two components. This technique requires the crane to remain in a lifting state throughout the double-ended stud tightening process, and the crane's stress must be adjusted in real time to prevent flange tilting that could lead to false tightening of the studs. This technique demands highly skilled assembly personnel, and the overall transmission chain has low operating efficiency and high investment costs.

[0004] In view of this, the inventors provide a flexible support device for a semi-direct drive wind power transmission chain to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and propose a flexible support device for a semi-direct drive wind turbine transmission chain. This flexible support device consists of a lifting mechanism fixedly installed inside the support frame, an elastic support mechanism placed at the top of the lifting mechanism, and a V-shaped support mechanism fixedly connected to the top of the elastic support mechanism to support the semi-direct drive wind turbine transmission chain. A flange-type load cell is installed on the V-shaped support mechanism to measure the pressure of the semi-direct drive wind turbine transmission chain, and the lifting mechanism inside the support frame ensures that the force balance of the wind turbine transmission chain can be adjusted at any time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flexible support device for a semi-direct drive wind turbine transmission chain includes a base plate, a support frame fixedly mounted on the base plate, a lifting mechanism fixedly installed on the base plate and inside the support frame, an elastic support mechanism placed at the top of the lifting mechanism, a V-shaped support mechanism fixedly connected to the top of the elastic support mechanism, a flange-type load cell for measuring the pressure of the semi-direct drive wind turbine transmission chain installed on the V-shaped support mechanism, and multiple sets of guide mechanisms symmetrically installed on the left and right sides of the support frame with the lifting mechanism as the center, the top of each set of guide mechanisms being fixedly connected to the bottom of the V-shaped support mechanism.

[0008] Furthermore, the elastic support mechanism includes a cylindrical spring protective cover, the top of which is fixedly connected to the V-shaped support mechanism. A spring support cap is provided inside the spring protective cover, the bottom of which contacts the top of the lifting mechanism, and a spring is installed inside the spring support cap.

[0009] Furthermore, the V-shaped support mechanism includes a V-shaped support base, the bottom left and right sides of which are fixedly connected to the guide mechanism. Expansion blocks are provided on the bottom front and rear sides of the V-shaped support base. Limiting blocks are symmetrically arranged on the top left and right sides of the V-shaped support base with the flange-type load cell as the center. Each limiting block has an oblong hole along the length of the V-shaped support base. The oblong hole and the fastener are used to adjust the distance between the two limiting blocks on the V-shaped support base.

[0010] Furthermore, the support frame includes a hollow rectangular frame fixedly connected to the base plate and formed by several vertical surrounding plates. A U-shaped cover plate is fixedly installed on the top of the hollow rectangular frame, and a plurality of reinforcing ribs are fixedly installed between the U-shaped cover plate and the base plate, and on the outside of the hollow rectangular frame.

[0011] Furthermore, eye bolts for moving the flexible support device in conjunction with hoisting equipment are symmetrically installed on either opposite corner of the U-shaped cover plate.

[0012] Furthermore, each set of the guiding mechanism includes a guide rod, a guide sleeve, and a guide baffle. The guide sleeve is fixedly connected to the support frame. After the guide rod passes through the support frame, one end is fixedly connected to the V-shaped support mechanism, and the other end is connected to the guide baffle.

[0013] Furthermore, on the base plate, U-shaped channel steels for transporting flexible support devices are symmetrically arranged on the left and right sides of the support frame. Each U-shaped channel steel is provided with several pressure plates for fixed connection with the base plate through connectors.

[0014] Furthermore, the upper part of the flange-type load cell is fixedly installed with the flange gasket, which is used to fix the flange-type load cell inside the V-shaped support mechanism.

[0015] Furthermore, the lifting mechanism is a screw jack.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention discloses a flexible support device for a semi-direct drive wind turbine transmission chain. The flexible support device has a support frame fixedly installed on a base plate, and a lifting mechanism is fixedly installed inside the support frame. An elastic support mechanism is placed at the top of the lifting mechanism, and a V-shaped support mechanism is fixedly connected to the top of the elastic support mechanism. A flange-type weighing sensor is installed on the V-shaped support frame to support the semi-direct drive wind turbine transmission chain placed on the V-shaped support frame and measure its pressure. Therefore, this flexible support device can replace overhead cranes for transportation, thereby reducing the use time of overhead cranes, improving operating efficiency and equipment utilization, shortening the production cycle, and reducing high capital investment such as factory buildings and overhead crane modifications, thus reducing production and manufacturing costs. Attached Figure Description

[0018] The accompanying drawings are incorporated in and form part of this specification, and together with the description serve to explain the principles of the invention.

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the flexible support device for the semi-direct drive wind power transmission chain of the present invention.

[0021] Figure 2 This is a top view schematic diagram of the semi-direct drive wind power transmission chain flexible support device of the present invention;

[0022] Figure 3 This is a side view schematic diagram of the flexible support device for the semi-direct drive wind power transmission chain of the present invention;

[0023] Figure 4 for Figure 3 Cross-sectional view along direction AA.

[0024] Wherein: 1 is the base plate; 2 is the support frame; 3 is the lifting mechanism; 4 is the elastic support mechanism; 5 is the V-shaped support mechanism; 6 is the guide mechanism; 7 is the flange-type load cell; 8 is the U-shaped channel steel; 21 is the hollow rectangular frame; 22 is the U-shaped cover plate; 23 is the reinforcing rib; 24 is the first support base frame; 25 is the second support base frame; 41 is the spring protective cover; 42 is the spring support cap; 43 is the spring; 51 is the V-shaped support frame; 52 is the extension block; 53 is the limit block; 61 is the guide rod; 62 is the guide sleeve; 63 is the guide baffle; 81 is the pressure plate; 221 is the eye bolt; 241 is the first connecting plate; 242 is the first support plate; 243 is the hollow cylinder; 251 is the second connecting plate; 252 is the second support plate; 253 is the storage box; 254 is the handheld device mounting plate; 531 is the oblong hole. Detailed Implementation

[0025] Exemplary embodiments will now be described in detail. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses consistent with some aspects of the invention as detailed in the appended claims.

[0026] Please see Figures 1-4 This invention provides a flexible support device for a semi-direct drive wind turbine transmission chain. The flexible support device includes a base plate 1, on which a support frame 2 is fixedly mounted. A lifting mechanism 3 is fixedly installed on the base plate 1 and inside the support frame 2. The lifting mechanism 3 is fixed to the base plate 1 by multiple hexagonal head screws. The lifting mechanism 3 is preferably a screw jack because the flexible support device will not be forcibly compressed due to its weight during the support of the semi-direct drive wind turbine transmission chain. An elastic support mechanism 4 is placed at the top of the lifting mechanism 3. A V-shaped support mechanism 5 is fixedly connected to the top of the support frame 2. An elastic support mechanism 4 is connected and fixed to the V-shaped support mechanism 5 by bolts. This V-shaped support mechanism 5 supports the semi-direct drive wind turbine transmission chain. Additionally, a flange-type load cell 7 for measuring the pressure of the semi-direct drive wind turbine transmission chain is installed in the groove on the V-shaped support mechanism 5. Multiple sets of guide mechanisms 6 are symmetrically installed on the left and right sides of the support frame 2, centered on the lifting mechanism 3. To ensure stable up-and-down movement of the V-shaped support mechanism 5 and the elastic support mechanism 4, the top of each guide mechanism 6 is fixedly connected to the bottom of the V-shaped support mechanism 5. This flexible support device is used to measure the pressure of the semi-direct drive wind turbine transmission chain and adjust the force in a timely manner to maintain balance.

[0027] In this embodiment of the invention, the flange-type load cell 7 has a working force range of 0–400 kN, a working temperature range of -20°C to 65°C, a sensitivity of 2.0 mV / V, and an accuracy of 0.05–0.1% FS. This flange-type load cell 7 is used to measure the pressure of a semi-direct-drive wind turbine drive chain and is equipped with an LCD display to show the real-time pressure of the wind turbine drive chain. The elastic support mechanism 4 specifically has a load capacity ≥ 40 t, a compression cycle count > 1 million, and an internal spring stiffness of 1 T / mm.

[0028] In this embodiment of the invention, the elastic support mechanism 4 includes a cylindrical spring protective cover 41. The top end of the spring protective cover 41 is fixedly connected to the V-shaped support mechanism 5 by an internal hexagonal head screw. A spring support cap 42 is provided inside the spring protective cover 41. The bottom end of the spring support cap 42 contacts the top end of the lifting mechanism 3 and moves up and down with the lifting mechanism 3. A spring 43 is installed inside the spring support cap 42. The function of the elastic support mechanism 4 is to buffer the semi-direct drive wind power transmission chain being transported by the crane to the flexible support device, and to prevent the semi-direct drive wind power transmission chain from tilting or falling due to the large elastic force generated between the heavy transmission chain and the support device. The V-shaped support mechanism 5 includes a V-shaped support base 51, which is fixedly connected to the guide mechanism 6 on the left and right sides of the bottom of the V-shaped support base 51. Expansion blocks 52 are provided on the front and rear sides of the bottom of the V-shaped support base 51. The V-shaped support base 51 and the expansion blocks 52 are connected and fixed by hexagonal head screws. The expansion blocks 52 serve to limit the downward movement of the V-shaped support base 51, thus preventing interference with the U-shaped cover plate. Limiting blocks 53 are symmetrically arranged on the left and right sides of the top surface of the V-shaped support base 51, centered on the flange-type load cell 7. Each limiting block 53 has a slotted hole 531 along the length of the V-shaped support base 51. The spacing between the two limiting blocks 53 on the V-shaped support base 51 is adjusted by the engagement of the hexagonal head screws with the slotted holes 531. This allows the position of the limiting blocks 53 on the V-shaped support base 51 to be adjusted according to the actual supported object, thus meeting the support requirements of different machine models. The support frame 2 includes a hollow rectangular frame 21, which is fixedly connected to the base plate 1 and is surrounded by several vertical panels. A U-shaped cover plate 22 is fixedly installed on the top of the hollow rectangular frame 21. Multiple reinforcing ribs 23 are fixedly installed between the U-shaped cover plate 22 and the base plate 1, and on the outside of the hollow rectangular frame 21. All components of the support frame 2 are fixed together by welding. The guide mechanism 6 includes a guide rod 61, a guide sleeve 62, and a guide baffle 63. The guide sleeve 62 is fixedly connected to the support frame 2 by hexagonal socket head cap screws. After the guide rod 61 passes through the support frame 2, one end of the guide rod 61 is fixedly connected to the V-shaped support mechanism 5, and the other end is connected to the guide baffle 63. The guide baffle 63 serves to limit the upward movement of the guide rod 61 to prevent the guide rod 61 from coming off when the lifting mechanism 3 rises. Preferably, in this embodiment of the invention, eye bolts 221 for moving the flexible support device in conjunction with hoisting equipment are symmetrically installed on either opposite corner of the U-shaped cover plate 22.

[0029] Specifically, the reinforcing rib 23 consists of a first support base frame 24, a second support base frame 25, and several fixing plates of different sizes. The first support base frame 24 is composed of a horizontally arranged first connecting plate 241 and a first support plate 242 vertically fixed at opposite ends of the first connecting plate 241. A hollow cylinder 243 is provided on the end face of the first connecting plate 241 for placing the pressure rod of the screw jack. Each hollow cylinder 243 has a hole on its surface, and the pressure rod is fixed inside the hollow cylinder 243 by knurled high-head screws. The second support base frame 25 is composed of a horizontally arranged second connecting plate 251 and a second support plate 252 vertically fixed at opposite ends of the second connecting plate 251. A storage box 253 is installed on the surface of one second support plate 252 of the second support base frame 25, and a handheld device mounting plate 254 is installed on the surface of the other second support plate 252. An LCD watch is installed on the handheld device mounting plate 254.

[0030] Preferably, in this embodiment of the invention, U-shaped channel steels 8 for transporting flexible support devices are symmetrically arranged on the base plate 1 on both sides of the support frame 2. Two pressure plates 81 are symmetrically arranged on each U-shaped channel steel 8 along its length direction. Each pressure plate 81 has holes on both sides and is connected and fixed to the holes on the base plate 1 by external hexagonal studs, so that the U-shaped channel steel 8 and the pressure plate 81 are fastened together. The length of the U-shaped channel steel 8 is 700mm and the model is 22b / Q235.

[0031] In practical applications, when the connecting bolts between the semi-direct drive transmission chain spindle module and the gearbox are tightened, the gearbox is transferred from the crane to the V-shaped support mechanism 5 of the flexible support device. During the connection process between the spindle module and the gearbox, the flanges of the two components are tightly closed. Then, the flange-type load cell 7 configured in the flexible support device tracks the force on the gearbox and displays the pressure in real time on the LCD. The lifting mechanism 3 is adjusted according to the load to make the connection holes between the spindle module and the gearbox completely aligned. Finally, the studs are tightened using a hydraulic wrench. The assembly reliability is high throughout the entire operation.

[0032] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.

[0033] It should be understood that the present invention is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A flexible support device for a semi-direct drive wind turbine transmission chain, characterized in that, The flexible support device includes a base plate (1), on which a support frame (2) is fixedly installed. A lifting mechanism (3) is fixedly installed on the base plate (1) inside the support frame (2). An elastic support mechanism (4) is placed at the top of the lifting mechanism (3). A V-shaped support mechanism (5) is fixedly connected to the top of the elastic support mechanism (4). A flange-type load cell (7) for measuring the pressure of the semi-direct drive wind power transmission chain is installed on the V-shaped support mechanism (5). Multiple sets of guide mechanisms (6) are symmetrically installed on the left and right sides of the support frame (2) with the lifting mechanism (3) as the center. The top of each set of guide mechanisms (6) is fixedly connected to the bottom of the V-shaped support mechanism (5).

2. The semi-direct drive wind turbine transmission chain flexible support device according to claim 1, characterized in that, The elastic support mechanism (4) includes a cylindrical spring guard (41), the top of which is fixedly connected to the V-shaped support mechanism (5). A spring support cap (42) is provided inside the spring guard (41), the bottom of which is in contact with the top of the lifting mechanism (3), and a spring (43) is installed inside the spring support cap (42).

3. The semi-direct drive wind turbine transmission chain flexible support device according to claim 1, characterized in that, The V-shaped support mechanism (5) includes a V-shaped support base (51). The bottom left and right sides of the V-shaped support base (51) are fixedly connected to the guide mechanism (6). The bottom front and rear sides of the V-shaped support base (51) are provided with extension blocks (52). The top left and right sides of the V-shaped support base (51) are symmetrically provided with limit blocks (53) centered on the flange-type load cell (7). Each limit block (53) has an oblong hole (531) along the length direction of the V-shaped support base (51). The oblong hole (531) and the fastener are used to adjust the distance between the two limit blocks (53) on the V-shaped support base (51).

4. The semi-direct drive wind turbine transmission chain flexible support device according to claim 1, characterized in that, The support frame (2) includes a hollow rectangular frame (21) fixedly connected to the base plate (1) and formed by several vertical surrounding plates. A U-shaped cover plate (22) is fixedly installed on the top of the hollow rectangular frame (21). A plurality of reinforcing ribs (23) are fixedly installed between the U-shaped cover plate (22) and the base plate (1) and on the outside of the hollow rectangular frame (21).

5. The semi-direct drive wind turbine transmission chain flexible support device according to claim 4, characterized in that, The loop cover plate (22) is symmetrically equipped with eye bolts (221) on each opposite corner for moving the flexible support device in conjunction with the hoisting equipment.

6. The semi-direct drive wind turbine transmission chain flexible support device according to claim 1, characterized in that, Each set of the guide mechanism (6) includes a guide rod (61), a guide sleeve (62) and a guide baffle (63). The guide sleeve (62) is fixedly connected to the support frame (2). After the guide rod (61) passes through the support frame (2), one end is fixedly connected to the V-shaped support mechanism (5) and the other end is connected to the guide baffle (63).

7. The semi-direct drive wind turbine transmission chain flexible support device according to claim 1, characterized in that, On the base plate (1), U-shaped channel steels (8) for transporting flexible support devices are symmetrically arranged on the left and right sides of the support frame (2). Each U-shaped channel steel (8) is provided with several pressure plates (81) for fixed connection with the base plate (1) through connectors.

8. The semi-direct drive wind turbine transmission chain flexible support device according to any one of claims 1 to 7, characterized in that, The lifting mechanism (3) is a screw jack.

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