Yaw clamp disassembling and assembling tool

Abstract

The invention provides a yaw clamp disassembling and assembling tool. The yaw clamp disassembling and assembling tool comprises a top plate, a lifting rod and a base. The top plate is connected to the top of the lifting rod. The lifting rod is hinged to the base. A plurality of connecting lugs are further arranged at the bottom of the lifting rod in the circumferential direction of the lifting rod. The base is provided with connecting bolts matched with the connecting lugs, so that when the lifting rod is erected on the base, the connecting lugs are connected to the connecting bolts respectively. The lifting rod and the base of the yaw clamp disassembling and assembling tool are connected in a hinged mode, so that the yaw clamp disassembling and assembling tool can be folded and stored when not used, and space is saved. Particularly, under the narrow environment of the top of the fan tower, the foldable structure enables the device to be conveniently carried to the position below a yaw clamp so as to be used. A jacking device in the prior art is large in size and inconvenient to move in a fan tower, so that a machine is inconvenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of a yaw clamp lifting device, and in particular to a yaw clamp disassembly and assembly tool. Background Art

[0002] The wind turbine yaw clamp is used to control the yaw of the wind turbine. When the yaw clamp is in the clamped state, the top of the wind turbine is locked and the yaw system cannot yaw to the wind. When the yaw clamp is loosened, the top of the wind turbine can rotate, and then the yaw motor can drive the yaw system to rotate, so that the wind turbine can face the wind to improve the power generation efficiency.

[0003] After long-term use, the yaw clamp is worn and damaged. At this time, the yaw clamp needs to be replaced. In the prior art, manual lifting is generally adopted. That is, at least two people lift the yaw clamp to the corresponding height, and another person installs the yaw clamp. Due to the heavy weight of the yaw clamp, manual lifting is very physically demanding and also makes the safety extremely low. Summary of the invention

[0004] The object of the present invention is to provide a yaw clamp disassembly and assembly tool, which can conveniently lift the yaw caliper for easy replacement.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A yaw clamp disassembly and assembly tool comprises a top plate, a lifting rod and a base; the top plate is connected to the top end of the lifting rod; the lifting rod is hinged to the base; the bottom of the lifting rod is also provided with a plurality of connecting ears along its circumference; the base is provided with a connecting bolt in conjunction with each connecting ear, so that when the lifting rod is erected on the base, a plurality of connecting ears are each connected to one of the connecting bolts.

[0007] Furthermore, the lifting rod includes an outer tube, a stud, a rotating nut and a bevel gear; the outer tube is hinged to the base and a plurality of connecting ears are arranged on the outer tube; the stud is telescopically inserted into the outer tube; the rotating nut is rotatably arranged on the outer tube and is threadedly connected to the stud, so that when the rotating nut rotates, the stud is telescopic relative to the outer tube; the bevel gear is rotatably connected to the outer tube; the rotating nut is provided with transmission teeth meshing with the bevel gear; the rotating shaft of the bevel gear protrudes from the outer tube.

[0008] Furthermore, the rotating nut and the bevel gear are both arranged on the top of the outer cylinder.

[0009] Furthermore, the base includes a bottom plate and two supporting legs; the middle parts of the two supporting legs are rotatably connected so that the two supporting legs are combined into a scissor-like shape; the bottom plate is connected to one of the supporting legs; the outer tube is hinged to the bottom plate; the bottom plate is equipped with a connecting bolt in conjunction with each connecting ear.

[0010] Furthermore, a locking groove is provided on the bottom surface of the base plate in cooperation with the supporting legs, so that when the two supporting legs are opened, one of the supporting legs is stuck in the locking groove.

[0011] Furthermore, rollers are provided at both ends of the supporting legs.

[0012] Furthermore, the roller is provided with a guide column and a spring; both ends of the supporting foot are provided with a guide groove and a receiving groove for accommodating the roller; the guide column is inserted into the guide groove so that the roller can be extended and retracted relative to the receiving groove; the spring is connected to the roller and the supporting foot so that the spring pushes the roller out of the receiving groove when the disassembly and assembly tool is unloaded.

[0013] Furthermore, the top plate is hinged to the top end of the stud; a locking screw is provided at the top of the stud; and a locking hole is provided on the top plate to cooperate with the locking screw so that the top plate can be locked to the stud through the locking screw.

[0014] Furthermore, the top plate is provided with a groove to cooperate with the locking screw, so that the locking screw sinks into the groove.

[0015] Furthermore, a protrusion is provided at the notch of the locking groove; and the distance between the protrusion and the bottom plate is smaller than the thickness of the supporting foot.

[0016] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0017] When the yaw clamp disassembly and assembly tool of the present invention is used, it is moved to the position where the yaw clamp is replaced. The lifting rod is rotated so that the lifting rod stands upright on the surface of the base. At this time, a plurality of connecting bolts of the base are each inserted into an inner portion of a connecting ear. The lifting rod can be erected and connected to the base through the cooperation of the nut and the connecting bolt. Finally, the yaw clamp is placed on the top plate and the yaw clamp can be lifted to the installation position through the lifting rod. Similarly, the yaw clamp can also be lowered from a high place to the ground to facilitate its disassembly and assembly.

[0018] The lifting rod and base of the yaw clamp disassembly and assembly tool are hingedly connected to each other, so that it can be folded and stored when not in use, saving space. Especially in the narrow environment at the top of the wind turbine tower, the foldable structure allows it to be easily moved under the yaw clamp for use. However, the lifting device in the prior art is large in size and not easy to move in the wind turbine tower, making it inconvenient to use the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the yaw clamp disassembly and assembly tool of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the yaw clamp disassembly and assembly tool of the present invention;

[0022] Figure 3 for Figure 2 The enlarged view of point a in the middle;

[0023] Figure 4 This is a schematic diagram of the coordination between the roller and the support foot;

[0024] Figure 5 This is a schematic diagram of the support legs being spread out;

[0025] Figure 6 This is a schematic diagram of the support legs being folded up;

[0026] Figure 7 This is a schematic diagram of the coordination between the support legs and the base plate;

[0027] Figure 8 for Figure 2 Enlarged view of point b in the middle.

[0028] Icon: 1-top plate, 2-lifting rod, 3-connecting ear, 4-outer cylinder, 5-stud, 6-rotating nut, 7-bevel gear, 8-support foot, 9-bottom plate, 10-locking groove, 11-roller, 12-guide column, 13-spring, 14-locking screw, 15-groove, 16-protrusion, 17-rotating shaft. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Example:

[0031] like Figure 1-Figure 8 As shown, the present invention provides a yaw clamp disassembly and assembly tool, including a top plate 1, a lifting rod 2 and a base. The top plate 1 is connected to the top of the lifting rod 2. The top plate 1 forms a platform at the top of the lifting rod 2, which is convenient for inserting the yaw clamp. The lifting rod 2 is hinged to the base. The base is used to contact the ground, thereby forming a large area of ​​support on the ground to ensure the stability of the entire device. The lifting rod 2 can be rotated relative to the base to be vertical to the base, and can also be rotated to be parallel to the base. When the lifting rod 2 is vertical to the base, it can serve as a stable support for the base to lift and lower the yaw clamp placed on its top. When the lifting rod 2 is parallel to the base, the device is in a folded state, which can save space and is convenient for moving and carrying in a narrow environment.

[0032] The bottom of the lifting rod 2 is also provided with a plurality of connecting ears 3 along its circumference. The base is provided with a connecting bolt in cooperation with each connecting ear 3, so that when the lifting rod 2 is erected on the base, each of the connecting ears 3 is connected to a connecting bolt. The connecting ears 3 can be fixed to the base by the cooperation of the nut and the connecting bolt.

[0033] When the yaw clamp disassembly and assembly tool of the present invention is used, it is moved to the position where the yaw clamp is replaced. The lifting rod 2 is rotated so that the lifting rod 2 stands upright on the surface of the base. At this time, a plurality of connecting bolts of the base are each inserted into a connecting ear 3. The lifting rod 2 can be made to stand upright and connected to the base through the cooperation of the nut and the connecting bolt. Finally, the yaw clamp is placed on the top plate 1 and the yaw clamp can be lifted to the installation position through the lifting rod 2. Similarly, the yaw clamp can also be lowered from a high place to the ground to facilitate its disassembly and assembly.

[0034] The lifting rod 2 and the base of the yaw clamp disassembly and assembly tool are hingedly connected to each other, so that it can be folded and stored when not in use, saving space. Especially in the narrow environment at the top of the wind turbine tower, the foldable structure allows it to be easily moved under the yaw clamp for use. However, the lifting device of the prior art is large in size and not easy to move in the wind turbine tower, making it inconvenient to use the machine.

[0035] In this embodiment, the lifting rod 2 includes an outer cylinder 4, a stud 5, a rotating nut 6 and a bevel gear 7. The outer cylinder 4 is hinged to the base and a plurality of connecting ears 3 are arranged on the outer cylinder 4. The stud 5 is retractably inserted into the inner part of the outer cylinder 4. The stud 5 and the outer cylinder 4 are combined into a common telescopic rod structure. The rotating nut 6 is rotatably arranged on the outer cylinder 4 and is threadedly connected to the stud 5, so that when the rotating nut 6 rotates, the stud 5 is retracted relative to the outer cylinder 4. The bevel gear 7 is rotatably connected to the outer cylinder 4. Specifically, a cavity for accommodating the bevel gear 7 can be arranged inside the cylinder wall of the outer cylinder 4, and then the bevel gear 7 is installed. The rotating nut 6 is provided with a transmission tooth meshed with the bevel gear 7. The rotation of the bevel gear 7 can drive the rotating nut 6 to rotate, and then drive the screw to rise and fall. The rotating shaft 17 of the bevel gear 7 is protruding from the outer cylinder 4. In practice, a hole can be opened in the cylinder wall of the outer cylinder 4, so that the rotating shaft 17 of the bevel gear 7 is extended. The rotating shaft 17 of the bevel gear 7 can be connected externally to drive it to rotate. The protruding part of the rotating shaft 17 of the bevel gear 7 can be set to a hexagonal rod shape, or it can be set to a hexagonal groove 15. This allows common screwdriver heads to cooperate with it. In other words, when used on site, the rotating nut 6 can be rotated by a common hand drill to drive the screw rod to rise and fall, and further lift the yaw clamp. The use of this structure also means that the entire device does not need to be configured with a power mechanism, and can be operated with the help of a common hand drill. This further makes the entire device lightweight and easy to carry. In addition, the rotating shaft 17 of the bevel gear 7 extends laterally, so that the hand drill can be connected to it from the side, and the side space is relatively open to avoid mutual interference and affect the use.

[0036] In this embodiment, the rotating nut 6 and the bevel gear 7 are both arranged on the top of the outer cylinder 4. Figure 3 As shown. Generally, the installation height of the yaw clamp is about 1.5 meters. Therefore, the height of the outer cylinder 4 can be set at about 1 meter. Further, the height of the stud 5 after being raised can reach about 2 meters. It can well adapt to the disassembly and assembly scenarios of the yaw clamp. Arranging the rotating nut 6 and the bevel gear 7 at the top of the outer cylinder 4 makes the height of the rotating shaft 17 of the bevel gear 7 about 1 meter. This height is very convenient for operation and makes the operability better.

[0037] In this embodiment, the base includes a bottom plate 9 and two support legs 8. The middle parts of the two support legs 8 are rotatably connected so that the two support legs 8 are combined into a scissor-like shape. Figure 5-7As shown, the bottom plate 9 is connected to a support leg 8, and the two can be stably connected by welding. The outer cylinder 4 is hinged to the bottom plate 9. The bottom plate 9 is provided with a connecting bolt in conjunction with each connecting ear 3. When the two support legs 8 are opened, they can be stably placed on the ground, thereby ensuring the stability of the entire device when placed on the ground. When the two support legs 8 are retracted, the two are folded. At the same time, the outer cylinder 4 is folded up, so that the base and the lifting rod 2 are folded into a rod shape, which is convenient for storage and transportation.

[0038] In this embodiment, the bottom surface of the bottom plate 9 is provided with a locking groove 10 in cooperation with the supporting legs 8, so that when the two supporting legs 8 are opened, one of the supporting legs 8 is stuck in the locking groove 10. Figure 8 As shown, the width of the locking groove 10 is the same as the thickness of the supporting foot 8, so that the supporting foot 8 can just fit into the locking groove 10. This allows the supporting foot 8 to be stably connected to the bottom plate 9 after being opened, thereby preventing the supporting foot 8 from shaking and affecting the stability of the entire device.

[0039] In this embodiment, rollers 11 are provided at both ends of the support legs 8. The rollers 11 can be used to conveniently move the entire device on a plane.

[0040] In this embodiment, the roller 11 is provided with a guide post 12 and a spring 13. Figure 4 As shown, both ends of the support foot 8 are provided with guide grooves and receiving grooves for accommodating the roller 11. The guide column 12 is inserted into the guide groove so that the roller 11 can be extended and retracted relative to the receiving groove. The spring 13 is connected to the roller 11 and the support foot 8 so that the spring 13 pushes the roller 11 out of the receiving groove when the disassembly tool is unloaded. The elastic force of the spring 13 needs to be specially set so that it will be compressed only when a heavy object is placed on it, causing the roller 11 to retract into the interior of the receiving groove. For example, when a 5kg weight is placed, the spring 13 is compressed, causing the roller 11 to retract into the interior of the receiving groove. At this time, it is only supported on the ground by the support foot 8.

[0041] When in use, if there is no heavy object placed on the top plate 1, the roller 11 contacts the ground under the action of the spring 13, so that the entire device can be easily moved. When the yaw clamp is placed on the top plate 1, the roller 11 retracts and is supported on the ground by the support foot 8. It is difficult for the support foot 8 to slide against the ground, so that the entire device is stable and reliable when a heavy object is placed. It will not move due to slight shaking, thereby ensuring the safety of the device. If the position needs to be moved after placing the heavy object to align the mounting hole of the yaw clamp with the bolt, the yaw clamp can be lifted upward. Then, the roller 11 can touch the ground and move under the application of a small amount of force. If the weight of the yaw clamp is 400N, the total elastic force of the spring 13 can be set to 350N, so that the roller 11 can touch the ground when the yaw clamp applies a force of 50N upward. It makes it more convenient to use.

[0042] In this embodiment, the top plate 1 is hinged to the top of the stud 5. Figure 3 As shown, a locking screw 14 is provided on the top of the stud 5. The top plate 1 is provided with a locking hole to match the locking screw 14, so that the top plate 1 is locked to the stud 5 through the locking screw 14. Then, heavy objects can be placed on the top plate 1. When not in use, the locking screw 14 can be removed to rotate the top plate 1, so that the top plate 1 is folded up for easy storage and transportation.

[0043] In this embodiment, the top plate 1 is provided with a groove 15 to cooperate with the locking screw 14, so that the locking screw 14 sinks into the groove 15. This prevents the surface of the top plate 1 from bulging 16 due to the locking screw 14, thereby facilitating the placement of heavy objects.

[0044] In this embodiment, the notch of the locking groove 10 is provided with a protrusion 16. The distance between the protrusion 16 and the bottom plate 9 is less than the thickness of the supporting foot 8. The protrusion 16 prevents the supporting foot 8 from sliding out easily after entering the locking groove 10, thereby ensuring the stability of the base.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A yaw clamp disassembly and assembly tool, characterized in that: It includes a top plate, a lifting rod and a base; the top plate is connected to the top end of the lifting rod; the lifting rod is hinged to the base; the bottom of the lifting rod is also provided with a plurality of connecting ears along its circumference; the base is provided with a connecting bolt in conjunction with each connecting ear, so that when the lifting rod is erected on the base, each of the plurality of connecting ears is connected to one of the connecting bolts.

2. The yaw clamp disassembly and assembly tool according to claim 1, characterized in that: The lifting rod includes an outer tube, a stud, a rotating nut and a bevel gear; the outer tube is hinged to the base and a plurality of connecting ears are arranged on the outer tube; the stud is telescopically inserted into the inner part of the outer tube; the rotating nut is rotatably arranged on the outer tube and is threadedly connected to the stud, so that when the rotating nut rotates, the stud is telescopic relative to the outer tube; the bevel gear is rotatably connected to the outer tube; the rotating nut is provided with transmission teeth meshing with the bevel gear; the rotating shaft of the bevel gear protrudes from the outer tube.

3. The yaw clamp disassembly and assembly tool according to claim 2, characterized in that: The rotating nut and the bevel gear are both arranged on the top of the outer cylinder.

4. The yaw clamp disassembly and assembly tool according to claim 3, characterized in that: The base includes a bottom plate and two supporting legs; the middle parts of the two supporting legs are rotatably connected so that the two supporting legs are combined into a scissor-like shape; the bottom plate is connected to one of the supporting legs; the outer tube is hinged to the bottom plate; the bottom plate is equipped with a connecting bolt to cooperate with each connecting ear.

5. The yaw clamp disassembly and assembly tool according to claim 4, characterized in that: The bottom surface of the bottom plate is provided with a locking groove in cooperation with the supporting legs, so that when the two supporting legs are opened, one of the supporting legs is stuck in the locking groove.

6. The yaw clamp disassembly and assembly tool according to claim 5, characterized in that: Rollers are arranged at both ends of the supporting legs.

7. The yaw clamp disassembly and assembly tool according to claim 6, characterized in that: The roller is provided with a guide column and a spring; both ends of the supporting foot are provided with a guide groove and a receiving groove for accommodating the roller; the guide column is inserted into the guide groove so that the roller can be extended and retracted relative to the receiving groove; the spring is connected to the roller and the supporting foot so that the spring pushes the roller out of the receiving groove when the disassembly tool is unloaded.

8. The yaw clamp disassembly and assembly tool according to claim 7, characterized in that: The top plate is hinged to the top end of the stud; a locking screw is arranged on the top of the stud; a locking hole is arranged on the top plate to cooperate with the locking screw, so that the top plate can be locked to the stud through the locking screw.

9. The yaw clamp disassembly and assembly tool according to claim 8, characterized in that: The top plate is provided with a groove to cooperate with the locking screw so that the locking screw sinks into the groove.

10. The yaw clamp disassembly and assembly tool according to claim 9, characterized in that: The notch of the locking groove is provided with a protrusion; the distance between the protrusion and the bottom plate is smaller than the thickness of the supporting foot.

Images