Quick release device for hoisting wind power blade

Abstract

The utility model discloses a quick release device for wind power blade hoisting, which relates to the technical field of wind power blade hoisting and comprises a support plate, four connecting strips are fixedly connected to the top of the support plate, a connecting plate is fixedly connected to the tops of the four connecting strips, and an air cylinder is fixedly inserted into the middle of the connecting plate. The telescopic rod of the air cylinder drives the gear to move downwards, the gear drives the two long blocks and the two clamping strips to move downwards through the two racks, when one of the two clamping strips makes contact with the thick side of the wind power blade, the telescopic rod of the air cylinder and the gear continue to stretch out and draw back downwards, and the gear rotates through the racks and drives the other rack to move downwards. And the other rack in the moving state drives the long block and the clamping strips to fix the thin side of the wind power blade, the wind power blade is stably fixed, after the wind power blade is hoisted to the proper height, the two racks are driven by the telescopic rod of the air cylinder to move upwards, and fixing of the two clamping strips to the wind power blade is rapidly relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine blade hoisting, in particular to a quick-release device for hoisting wind turbine blades. Background Art

[0002] At present, with the popularization of wind power generation technology, more and more places need to install wind turbines. Wind turbines are power equipment that uses wind energy to output alternating current. Wind turbines mainly include towers, wind turbine blades, generators and other components. Among them, wind turbine blades are blades with curved surfaces. When installing wind turbine blades, hoisting devices are required to install them.

[0003] The existing patent (Announcement No.: CN213950327U) discloses a hoisting tool for wind turbine blades, including a platform, a traction rope, a steering cylinder, a steering motor, a support plate and a clamping assembly. One end of the traction rope is fixedly connected to the platform. The wind turbine blade is inserted into the steering cylinder with the assistance of an active roller and a guide roller, and is placed on the active roller and the guide roller. Then, the telescopic rod of the hydraulic cylinder is extended, and the clamping plate and the clamping block contact the wind turbine blade through the flexible sheet and the friction sheet, and adapt to the curved surface of the wind turbine blade. In the process of implementing this solution, it was found that the following problems exist in the prior art and have not been well solved: the above-mentioned device fixes and clamps the wind turbine blades through the hydraulic cylinder, the flexible sheet and the friction sheet, but the length of the hydraulic cylinder to be extended is a fixed length, and the thickness of the wind turbine blade is an inclined surface, which leads to poor stability of the hydraulic cylinder, the flexible sheet and the friction sheet to fix the wind turbine blade. Utility Model Content

[0004] In order to improve the above-mentioned problem of fixing and clamping the wind turbine blades by means of a hydraulic cylinder, a flexible sheet and a friction sheet, but the extension and retraction length of the hydraulic cylinder is a fixed length, and the thickness of the wind turbine blades is an inclined surface, which leads to poor stability of the wind turbine blades fixed by the hydraulic cylinder, the flexible sheet and the friction sheet, the utility model provides a quick-release device for hoisting wind turbine blades.

[0005] The utility model provides a quick-release device for hoisting wind turbine blades, which adopts the following technical solutions:

[0006] A quick-release device for hoisting a wind turbine blade comprises a support plate, the top of the support plate is fixedly connected with four connecting strips, the tops of the four connecting strips are fixedly connected with a connecting plate, and the middle of the connecting plate is fixedly plugged with a cylinder;

[0007] The top of the support plate is fixedly connected with a rectangular frame, and long grooves are provided on the left and right sides of the inner wall of the rectangular frame. Long blocks are slidably connected inside the long grooves, and racks are fixedly connected on opposite sides of the two long blocks. The bottom end of the telescopic rod of the cylinder passes through the interior of the rectangular frame.

[0008] A groove is provided at the bottom end of the telescopic rod of the cylinder, a gear is rotatably connected inside the groove, the gear is meshed with a rack, and a clamping strip is fixedly connected to the bottom of the long block;

[0009] The support plate is provided with T-shaped grooves on both sides, the inside of the T-shaped groove is fixedly connected with a T-shaped plate, the side of the transverse plate of the T-shaped plate is fixedly connected with two second tension springs, one end of the second tension spring is fixedly connected to the inside of the transverse groove of the T-shaped groove, the top of the support plate is movably connected with two fixed blocks, and the top of the transverse plate of the T-shaped plate is provided with two fixed grooves.

[0010] The above technical solution facilitates the stable fixation of the wind turbine blades, and can quickly release the fixation of the wind turbine blades by the two clamps. The vertical plates of the T-shaped plates can also support longer wind turbine blades, reducing the possibility of deformation of the wind turbine blades.

[0011] Optionally, in the above-mentioned quick-release device for hoisting wind turbine blades, the fixing block includes an E-shaped rod, which is movably inserted into the front and rear sides of the top of the support plate, and the side surfaces of the left and right vertical rods of the E-shaped rod are respectively slidably connected to the inside of the fixing groove.

[0012] Through the above technical solution, the two T-shaped plates can be fixed conveniently through the left and right vertical rods of the E-shaped rod.

[0013] Optionally, in the above-mentioned quick-release device for hoisting wind turbine blades, the bottom of the horizontal rod of the E-shaped rod is fixedly connected to a first tension spring, and the bottom end of the first tension spring is fixedly connected to the top of the support plate, the bottom end of the middle vertical rod of the E-shaped rod extends to the bottom of the support plate, and the length of the middle vertical rod of the E-shaped rod is twice the length of the vertical rods on the left and right sides of the E-shaped rod.

[0014] Through the above technical solution, when the middle vertical rod of the E-shaped rod is squeezed upward, the left and right vertical rods of the E-shaped rod can be driven to move out from the inside of the fixing groove.

[0015] Optionally, in the above-mentioned quick-release device for hoisting a wind turbine blade, both left and right sides of the support plate and the side surfaces of the vertical plate of the T-shaped plate are rounded.

[0016] Through the above technical solution, the support plate and the vertical plate of the T-shaped plate are easy to be rounded, which reduces the possibility of scratching the wind turbine blades.

[0017] Optionally, in the above-mentioned quick-release device for hoisting a wind turbine blade, the shape of the interior of the long groove and the shape of the long block are both T-shaped.

[0018] Through the above technical solution, the T-shaped long block can slide vertically up and down inside the long groove.

[0019] Optionally, in the above-mentioned quick-release device for hoisting a wind turbine blade, a silicone strip is fixedly connected to the bottom of the inner wall of the rectangular frame and the bottom of the clamping strip.

[0020] Through the above technical solution, the silicone strip increases the stability of the wind turbine blade clamping.

[0021] Optionally, in the above-mentioned quick-release device for hoisting a wind turbine blade, two C-shaped connecting strips are fixedly connected to the top of the connecting plate, and the side surfaces of the horizontal strips of the C-shaped connecting strips are provided with anti-slip patterns.

[0022] Through the above technical solution, the anti-slip pattern and the C-shaped connecting strip make it convenient to hang the device with a rope.

[0023] In summary, the present invention has at least one of the following beneficial effects:

[0024] 1. The telescopic rod of the cylinder drives the gear downward, so that the gear drives two long blocks and two clamping strips downward through two racks. When one of the two clamping strips contacts the thicker side of the wind turbine blade, the telescopic rod of the cylinder and the gear continue to extend downward, so that the gear rotates through the rack, driving the other rack downward, so that the other moving rack drives its long block and clamping strip to fix the thinner side of the wind turbine blade, thereby stably fixing the wind turbine blade. When the wind turbine blade is hoisted to a suitable height, the telescopic rod of the cylinder drives the two racks upward to quickly release the fixation of the wind turbine blade by the two clamping strips.

[0025] 2. By moving the two E-shaped rods upward, the left and right vertical rods of the E-shaped rods are moved out of the fixing grooves, releasing the fixation of the two T-shaped plates, and allowing the two T-shaped plates to move to the left and right sides through a group of two second tension springs, so that the vertical plates of the T-shaped plates support the longer wind turbine blades, reducing the possibility of deformation of the wind turbine blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a partial three-dimensional structural cross-sectional view of the rectangular frame of the utility model;

[0028] Figure 3 It is a partial three-dimensional structural cross-sectional view of the support plate of the utility model.

[0029] In the figure: 1. support plate; 2. connecting strip; 3. cylinder; 301. C-shaped connecting strip; 4. rectangular frame; 401. silicone strip; 5. long groove; 6. long block; 7. rack; 8. groove; 9. gear; 10. clamping strip; 11. T-shaped groove; 12. T-shaped plate; 13. second tension spring; 14. fixing block; 1401. E-shaped rod; 1402. first tension spring; 15. fixing groove; 16. connecting plate. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 The utility model is described in further detail.

[0031] Please refer to the attached figure in the instruction manual Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a quick-release device for hoisting a wind turbine blade, comprising a support plate 1, the top of the support plate 1 is fixedly connected with four connecting strips 2, the tops of the four connecting strips 2 are fixedly connected with a connecting plate 16, and the middle of the connecting plate 16 is fixedly plugged with a cylinder 3;

[0032] A rectangular frame 4 is fixedly connected to the top of the support plate 1. Long grooves 5 are provided on the left and right sides of the inner wall of the rectangular frame 4. Long blocks 6 are slidably connected inside the long grooves 5. Racks 7 are fixedly connected to the opposite sides of the two long blocks 6. The bottom end of the telescopic rod of the cylinder 3 passes through the interior of the rectangular frame 4.

[0033] A groove 8 is provided at the bottom end of the telescopic rod of the cylinder 3, a gear 9 is rotatably connected inside the groove 8, the gear 9 is meshed with the rack 7, and a clamping strip 10 is fixedly connected to the bottom of the long block 6;

[0034] T-shaped grooves 11 are provided on both sides of the left and right sides of the support plate 1, and a T-shaped plate 12 is fixedly connected inside the T-shaped groove 11. Two second tension springs 13 are fixedly connected to the side of the transverse plate of the T-shaped plate 12, and one end of the second tension spring 13 is fixedly connected to the inside of the transverse groove of the T-shaped groove 11. Two fixed blocks 14 are movably inserted on the top of the support plate 1, and two fixed grooves 15 are provided on the top of the transverse plate of the T-shaped plate 12.

[0035] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3 The fixing block 14 includes an E-shaped rod 1401, which is movably inserted into the front and rear sides of the top of the support plate 1. The sides of the left and right vertical rods of the E-shaped rod 1401 are respectively slidably connected to the inside of the fixing groove 15, and the two T-shaped plates 12 can be fixed by the left and right vertical rods of the E-shaped rod 1401.

[0036] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3The bottom of the cross bar of the E-shaped rod 1401 is fixedly connected with a first tension spring 1402, and the bottom end of the first tension spring 1402 is fixedly connected to the top of the support plate 1. The bottom end of the middle vertical rod of the E-shaped rod 1401 extends to the bottom of the support plate 1. The length of the middle vertical rod of the E-shaped rod 1401 is twice the length of the vertical rods on the left and right sides of the E-shaped rod 1401. When the middle vertical rod of the E-shaped rod 1401 is squeezed upward, it can drive the left and right vertical rods of the E-shaped rod 1401 to move out from the inside of the fixed groove 15.

[0037] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3 The left and right sides of the support plate 1 and the side surfaces of the vertical plate of the T-shaped plate 12 are all rounded, and the rounded support plate 1 and the vertical plate of the T-shaped plate 12 reduce the possibility of scratching the wind turbine blades.

[0038] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3 The shape of the interior of the long groove 5 and the shape of the long block 6 are both T-shaped, and the T-shaped long block 6 can slide vertically up and down inside the long groove 5.

[0039] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3 The bottom of the inner wall of the rectangular frame 4 and the bottom of the clamping strip 10 are both fixedly connected with a silicone strip 401, and the silicone strip 401 increases the stability of clamping the wind turbine blade.

[0040] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3 Two C-shaped connecting strips 301 are fixedly connected to the top of the connecting plate 16, and the side surfaces of the horizontal strips of the C-shaped connecting strips 301 are provided with anti-skid patterns, and the anti-skid patterns and the C-shaped connecting strips 301 facilitate hanging the device with ropes.

[0041] Working principle: When using the quick-release device for hoisting wind turbine blades, the telescopic rod of the cylinder 3 drives the gear 9 to move downward, so that the gear 9 drives the two long blocks 6 to move downward through the two racks 7, and then drives the two clamping strips 10 to move downward. When one of the two clamping strips 10 contacts the thicker side of the wind turbine blade, the telescopic rod of the cylinder 3 drives the gear 9 to continue to telescope downward, so that the gear 9 rotates through the fixed rack 7, and then drives the other rack 7 to move downward, so that the other moving rack 7 drives the long block 6 and the clamping strip 10 on its side to fix the thinner side of the wind turbine blade, so that the wind turbine blade can be stably fixed. When the wind turbine blade is hoisted to a suitable height, the telescopic rod of the cylinder 3 drives the two racks 7 to move upward, so that the two clamping strips 10 can quickly release the fixation of the wind turbine blade;

[0042] By moving the two E-shaped rods 1401 upward, the left and right vertical rods of the E-shaped rod 1401 move out from the inside of the fixing groove 15, releasing the fixing state of the two T-shaped plates 12, and then the two T-shaped plates 12 move to the left and right sides through the rebound force of the second tension springs 13 in groups of two, so that the vertical plates of the T-shaped plates 12 support the longer wind turbine blades, reducing the possibility of deformation of the wind turbine blades.

[0043] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A quick-release device for hoisting a wind turbine blade, comprising a support plate (1), characterized in that: Four connecting strips (2) are fixedly connected to the top of the support plate (1), a connecting plate (16) is fixedly connected to the top of the four connecting strips (2), and a cylinder (3) is fixedly plugged into the middle of the connecting plate (16); The top of the support plate (1) is fixedly connected to a rectangular frame (4), the left and right sides of the inner wall of the rectangular frame (4) are provided with long grooves (5), the interior of the long grooves (5) is slidably connected to a long block (6), the opposite sides of the two long blocks (6) are fixedly connected to a rack (7), and the bottom end of the telescopic rod of the cylinder (3) passes through the interior of the rectangular frame (4); A groove (8) is provided at the bottom end of the telescopic rod of the cylinder (3), a gear (9) is rotatably connected inside the groove (8), the gear (9) is meshed with the rack (7), and a clamping strip (10) is fixedly connected to the bottom of the long block (6); The support plate (1) is provided with a T-shaped groove (11) on both sides, the inside of the T-shaped groove (11) is fixedly connected with a T-shaped plate (12), the side of the transverse plate of the T-shaped plate (12) is fixedly connected with two second tension springs (13), one end of the second tension spring (13) is fixedly connected to the inside of the transverse groove of the T-shaped groove (11), the top of the support plate (1) is movably connected with two fixing blocks (14), and the top of the transverse plate of the T-shaped plate (12) is provided with two fixing grooves (15).

2. A quick-release device for hoisting wind turbine blades according to claim 1, characterized in that: The fixing block (14) comprises an E-shaped rod (1401), the E-shaped rod (1401) being movably plugged into the front and rear sides of the top of the support plate (1), and the side surfaces of the left and right vertical rods of the E-shaped rod (1401) are respectively slidably connected to the inside of the fixing groove (15).

3. A quick-release device for hoisting wind turbine blades according to claim 2, characterized in that: The bottom of the crossbar of the E-shaped rod (1401) is fixedly connected to a first tension spring (1402), and the bottom end of the first tension spring (1402) is fixedly connected to the top of the support plate (1). The bottom end of the middle vertical rod of the E-shaped rod (1401) extends to the bottom of the support plate (1), and the length of the middle vertical rod of the E-shaped rod (1401) is twice the length of the vertical rods on the left and right sides of the E-shaped rod (1401).

4. A quick-release device for hoisting wind turbine blades according to claim 1, characterized in that: The left and right sides of the support plate (1) and the side surfaces of the vertical plate of the T-shaped plate (12) are all rounded.

5. The quick-release device for hoisting wind turbine blades according to claim 1, characterized in that: The shape of the interior of the long groove (5) and the shape of the long block (6) are both T-shaped.

6. A quick-release device for hoisting wind turbine blades according to claim 1, characterized in that: The bottom of the inner wall of the rectangular frame (4) and the bottom of the clamping strip (10) are both fixedly connected with a silicone strip (401).

7. A quick-release device for hoisting wind turbine blades according to claim 1, characterized in that: Two C-shaped connecting strips (301) are fixedly connected to the top of the connecting plate (16), and the side surfaces of the horizontal strips of the C-shaped connecting strips (301) are provided with anti-slip patterns.

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