Flange bolt fastening device for fan foundation ring

Abstract

The utility model provides a fan foundation ring flange bolt fastening device, which relates to the technical field of wind turbine generator operation and maintenance and comprises a tower drum flange plate and a clamping leveraging ring. A mounting hole is formed in the tower drum flange plate, a flange bolt is arranged in the mounting hole and penetrates through the mounting hole from bottom to top, the upper end of the flange bolt is sleeved with a flange nut, one set of clamping leveraging rings is arranged on the upper side of the tower drum flange plate, the other set of clamping leveraging rings is arranged on the lower side of the tower drum flange plate, and the two sets of clamping leveraging rings are connected through four clamping hydraulic rods on the inner side. Supporting rods are arranged on the two sides of the clamping leveraging ring on the upper side, a cross beam is supported above the two supporting rods, a control key is arranged on the upper side of the cross beam, and a fastening structure is connected to the outer side of the cross beam. The problem that a reaction force arm of an existing hydraulic wrench can cause paint removal of a tower drum is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the wind turbine operation and maintenance technical field, more specifically, it is especially related to a flange bolt fastening device for fan foundation ring. BACKGROUND

[0002] After the wind turbine is installed and put into use, an operation and maintenance team needs to be set up to perform operation and maintenance work on the wind turbine, including but not limited to wind farm technical specialists, etc., which are mainly responsible for fault handling and maintenance work of the wind turbine, etc. The main reasons for the operation and maintenance of the wind turbine include: 1) ensuring equipment safety: the wind turbine usually operates at a high altitude, and if the equipment fails or human negligence causes the wind blade to fall off or run out of control, it may cause harm to the surrounding environment and personnel; 2) improving power generation efficiency: irregular maintenance will cause the performance of the wind turbine to decrease, affecting the power generation efficiency; 3) prolonging the service life of the equipment: regular maintenance can timely find and repair equipment failures, avoiding the continuous existence of equipment failures to shorten the service life; 4) reducing maintenance costs: irregular maintenance may cause the equipment to fail and require emergency maintenance, which is costly. The main tasks and responsibilities of the wind turbine operation and maintenance include regular inspection, mechanical maintenance, electrical maintenance, blade maintenance, data analysis and prediction, preventive maintenance, etc. Wind power operation and maintenance plays a crucial role in ensuring the normal operation of the wind turbine. A 1.5MW wind turbine needs to be torque fastened every year, among which the torque value of the tower flange plate needs to be the largest. When using a hydraulic wrench for fastening, the reaction force arm of the hydraulic wrench will cause the tower cylinder to be stripped. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a flange bolt fastening device for fan foundation ring to solve the problem that the reaction force arm of the existing hydraulic wrench will cause the tower cylinder to be stripped.

[0004] The utility model discloses a flange bolt fastening device for fan foundation ring, which is achieved by the following specific technical means:

[0005] A flange bolt fastening device for fan foundation ring, comprising: a tower flange plate and a clamping power ring; a mounting hole is provided on the tower flange plate, a flange bolt is arranged in the mounting hole, the flange bolt passes through the mounting hole from bottom to top, a flange nut is sleeved on the upper end of the flange bolt, the clamping power ring is provided with two groups, one group is arranged on the upper side of the tower flange plate, and the other group is arranged on the lower side of the tower flange plate; the two groups of clamping power rings are connected by four clamping hydraulic rods on the inner side; support rods are arranged on both sides of the upper clamping power ring; two support rods are provided with a cross beam above; a control button is arranged on the upper side of the cross beam; and a fastening structure is connected to the outer side of the cross beam.

[0006] Further, the upper side of the clamping position is provided with a hexagonal cylinder on the left and right sides of the leverage ring, and a positioning ring is arranged in the middle.

[0007] Further, the four clamping hydraulic rods are arranged in different extending directions, so that the clamping leverage ring is uniformly stressed, and the clamping leverage ring is favorably clamped on the tower cylinder flange plate.

[0008] Further, the fastening structure is composed of a fastening hydraulic rod, a bearing, a fastening motor and a driving shaft, the upper end of the fastening hydraulic rod is connected to the cross beam through a triangular plate, the lower end of the fastening hydraulic rod is internally provided with the fastening motor, the lower end of the fastening motor is connected to the driving shaft, the driving shaft extends out of the lower end of the fastening hydraulic rod and is connected to a fastening hexagonal cap, and the exposed part of the driving shaft is sleeved with the bearing.

[0009] Further, the positioning ring is provided with a spherical groove, and an auxiliary ball is arranged in the spherical groove.

[0010] Further, the extending speed of the fastening hydraulic rod is matched with the rotating speed of the fastening motor.

[0011] Compared with the prior art, the utility model has the advantages of the following:

[0012] 1、The utility model discloses a clamping leverage ring and a hexagonal cylinder are arranged, and the reaction force during fastening of a fastening bolt is applied to other bolts, thereby avoiding that the reaction force arm of a hydraulic wrench causes tower cylinder paint removal.

[0013] 2、The utility model discloses that the clamping hydraulic rod is arranged in different extending directions, so that the clamping leverage ring is uniformly stressed, and the clamping leverage ring is favorably clamped on the tower cylinder flange plate.

[0014] 3、The utility model discloses that the extending speed of the fastening hydraulic rod is matched with the rotating speed of the fastening motor, thereby avoiding damage to the threads of the flange bolt and the flange nut.

[0015] 4、The utility model discloses that the auxiliary ball is arranged, thereby favorably rotating the fastening hexagonal cap in the positioning ring and reducing frictional damage during rotation. DRAWINGS

[0016] Figure 1 It is the overall structure schematic view of the utility model.

[0017] Figure 2 It is the structure schematic view of the utility model from the top.

[0018] Figure 3 It is the structure schematic view of the utility model in a non-working state.

[0019] Figure 4 Fig. 1 is a structure schematic diagram of the fastening structure of the utility model.

[0020] Figure 5 Fig. 2 is a section structure schematic diagram of the utility model.

[0021] In the figure, the corresponding relationship of component name and figure number is as follows:

[0022] 1, tower flange plate;

[0023] 2, flange bolt;

[0024] 3, flange nut;

[0025] 4, clamping position power ring;

[0026] 5, hexagonal cylinder;

[0027] 6, positioning ring;

[0028] 7, fastening hexagonal cap;

[0029] 8, support rod;

[0030] 9, crossbeam;

[0031] 10, fastening hydraulic rod;

[0032] 11, control button;

[0033] 12, clamping hydraulic rod;

[0034] 13, bearing;

[0035] 14, fastening motor;1401, driving shaft;

[0036] 15, auxiliary spherical ball. DETAILED DESCRIPTION

[0037] The embodiment of the utility model is further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model. EXAMPLE

[0038] As shown in the accompanying drawings: Figure 1 to the accompanying drawings: Figure 5

[0039] ​The utility model provides a kind of for fan foundation ring flange bolt fastening device, comprising: tower drum flange plate 1, clamping position leverage ring 4;Tower drum flange plate 1 is installed hole, and installed hole is equipped with flange bolt 2, flange bolt 2 is passed through installed hole from bottom to top, and flange nut 3 is sleeved on the upper end of flange bolt 2, clamping position leverage ring 4 is equipped with two groups, one group is equipped on the upside of tower drum flange plate 1, one group is equipped on the downside of tower drum flange plate 1, two groups of clamping position leverage ring 4 are connected by four clamping hydraulic rods 12 of inside, and both sides of upside clamping position leverage ring 4 are equipped with support rod 8, and two support rods 8 are supported with crossbeam 9 above, and control button 11 is equipped on the upside of crossbeam 9, and crossbeam 9 is connected with fastening structure outside.

[0040] As shown in the drawings, the left side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the right side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12. Figure 3 As shown in the drawings, the left side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the right side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12.

[0041] As shown in the drawings, the left side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the right side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12. Figure 3 As shown in the drawings, the left side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the right side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12.

[0042] As shown in the drawings, the left side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the right side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12. Figure 4 As shown in the drawings, the left side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the right side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12.

[0043] As shown in the drawings, the left side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the right side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12. Figure 5 As shown in the drawings, the left side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the right side of the four clamping hydraulic rods 12 is equipped with a clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12, and the clamping hydraulic rod 12 is connected with the clamping hydraulic rod 12.

[0044] The specific use mode and effect of the embodiment are as follows:

[0045] The utility model discloses a hexagonal cylinder 5 is aligned the flange nut 3 of needing fastening flange nut 3 both sides, and press control button 11 controls fastening hydraulic stem 10 to slowly drop, and fastening hexagonal cap 7 is inserted into the positioning ring 6, and the flange nut 3 of needing fastening is clamped, and the hexagonal cylinder 5 of the downside is aligned corresponding flange bolt 2, and control clamping hydraulic stem 12 slowly contracts, and the flange nut 3 and flange bolt 2 are clamped into hexagonal cylinder 5, and after fixing, press control button 11 simultaneously controls fastening motor 14 rotation and fastening hydraulic stem 10 drop, and the flange bolt 2 of fan foundation ring is fastened.

[0046] The utility model discloses not detailed place, all are the known technology of the person skilled in the art.

Claims

1. A wind turbine foundation ring flange bolting arrangement comprising: Tower flange plate (1), clamping position ring (4); characterized in that: the tower flange plate (1) is provided with a mounting hole, a flange bolt (2) is arranged in the mounting hole, the flange bolt (2) passes through the mounting hole from bottom to top, a flange nut (3) is sleeved on the upper end of the flange bolt (2), the clamping position ring (4) is provided with two groups, one group is arranged on the upper side of the tower flange plate (1), and the other group is arranged on the lower side of the tower flange plate (1), the two groups of clamping position rings (4) are connected by four clamping hydraulic rods (12) on the inner side, the upper side of the clamping position ring (4) is provided with a support rod (8) on each side, two support rods (8) are supported by a cross beam (9) above, a control button (11) is arranged on the upper side of the cross beam (9), and the cross beam (9) is connected with a fastening structure outside.

2. A wind turbine foundation ring flange bolting arrangement according to claim 1, characterised in that: The upper side of the clamping position ring (4) is provided with a hexagonal cylinder (5) on the left and right sides, and a positioning ring (6) is arranged in the middle.

3. A bolting arrangement for a foundation ring flange of a wind turbine according to claim 1, characterized in that: The first clamping hydraulic rod (12) and the third clamping hydraulic rod (12) on the left side of the four clamping hydraulic rods (12) are in downward stretching state, and the first clamping hydraulic rod (12) and the third clamping hydraulic rod (12) on the right side are in upward stretching state.

4. A wind turbine foundation ring flange bolting arrangement according to claim 1, characterised in that: The fastening structure is composed of a fastening hydraulic rod (10), a bearing (13), a fastening motor (14) and a driving shaft (1401), the upper end of the fastening hydraulic rod (10) is connected to the cross beam (9) by a triangular plate, the lower end of the fastening hydraulic rod (10) is provided with the fastening motor (14) inside, the lower end of the fastening motor (14) is connected with the driving shaft (1401), the driving shaft (1401) extends out of the lower end of the fastening hydraulic rod (10) and is connected with a fastening hexagonal cap (7), and the leaking part of the driving shaft (1401) is sleeved with the bearing (13).

5. A wind turbine foundation ring flange bolting arrangement according to claim 2, wherein: The positioning ring (6) is provided with a spherical groove, and an auxiliary ball (15) is arranged in the spherical groove, the auxiliary ball (15) can rotate in each direction, but will not fall out.

6. A wind turbine foundation ring flange bolting arrangement according to claim 4, wherein: The stretching speed of the fastening hydraulic rod (10) matches the rotating speed of the fastening motor (14).

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