Lifting tool for replacement and maintenance of cooler of wind driven generator

Abstract

The utility model discloses a wind driven generator cooler replacement and maintenance lifting tool which comprises a front lifting support and a rear lifting support, the front lifting support and the rear lifting support comprise transverse sliding rails, vertical supporting rods which are symmetrically arranged are connected below the two ends of the transverse sliding rails respectively, and the lower ends of the supporting rods of the front lifting support and the rear lifting support are fixedly connected with lifting lugs of a generator base. Sliding traction lifting devices for lifting the cooler are slidably arranged on the transverse sliding rails of the front and rear hoisting supports, and heat exchanger hoisting devices are connected to supporting rods, close to one side of the heat exchanger, of the front and rear hoisting supports. The lifting device is simple in structure, the front lifting support and the rear lifting support are fixed through the generator base lifting lugs to form a lifting point, the cooler is lifted through the sliding traction lifting device, meanwhile, the heat exchanger is lifted out through the heat exchanger lifting device for replacement and maintenance, and the problem that lifting and maintenance are inconvenient due to narrow space is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting tool technology field especially relates to a wind driven generator cooler replacement maintenance hoisting tool. BACKGROUND

[0002] With the continuous development of wind power cooling market, wind driven generator cooler is widely used in wind power, high pressure, marine, etc. industry. The cooler of the generator can control the operating temperature, improve the efficiency and performance, prevent the component damage, reduce the emission pollution and guarantee the safe operation, which plays a huge role in the use of the generator.

[0003] However, when the cooler needs to be replaced and maintained, the cooler needs to be lifted and separated from the generator, and then the replacement and maintenance of the heat exchanger are carried out, but because the position of the wind driven generator set is generally in remote areas, the transportation and operation space are limited, the traditional lifting instrument cannot be used, the transportation is inconvenient, and the cooler is large and heavy, which cannot be moved and operated manually. SUMMARY

[0004] In view of the existing problems, the utility model provides a wind driven generator cooler replacement maintenance hoisting tool which is simple in structure, convenient and flexible, and convenient to operate in small space.

[0005] In order to achieve the above purpose, the utility model provides the following scheme: a wind driven generator cooler replacement maintenance hoisting tool, comprising front and rear hoisting supports, the front and rear hoisting supports comprise a horizontal sliding rail, the horizontal sliding rail is connected with vertically arranged support rods at both ends, the lower end of the support rod of the front and rear hoisting supports is fixedly connected with the generator base lifting lug, a sliding traction lifting device for lifting the cooler is arranged on the horizontal sliding rail of the front and rear hoisting supports, and a heat exchanger lifting device is connected to the support rod on the side close to the heat exchanger of the front and rear hoisting supports.

[0006] Further, the lower end of the support rod of the front and rear hoisting supports is connected with the generator base lifting lug through a lifting lug buckle, and the lifting lug buckle is provided with upper and lower limiting holes matched with the generator base lifting lug hole.

[0007] Further, the lower end of the support rod of the front and rear hoisting supports is provided with upper and lower adjusting holes matched with the limiting holes.

[0008] Further, the horizontal sliding rail is provided with a sliding groove along the length direction of the horizontal sliding rail, and a support adjusting supporting plate is slidably arranged in the sliding groove.

[0009] Further, the sliding traction lifting device comprises a hand-pulled single-track crane, the hand-pulled single-track crane is slidably installed on the horizontal sliding rail, and a hand-pulled traction hoist is connected to the lower end of the hand-pulled single-track crane.

[0010] Further, the heat exchanger hoisting device comprises a base, a vertical column is arranged on the base, the vertical column is fixedly connected with a supporting rod, a vertical screw rod is connected to the upper end of the vertical column, an adjusting nut is screwed on the screw rod, a sleeve column is arranged on the screw rod, the sleeve column is connected with the upper end of the adjusting nut through a bearing, and a lifting arm vertically arranged on the sleeve column is fixedly connected to the sleeve column.

[0011] Further, one end of a fixing rod is connected below the middle of the lifting arm, the other end of the fixing rod is connected with the sleeve column, and the lifting arm, the fixing rod and the sleeve column form a triangular support.

[0012] Further, a plurality of lifting points are arranged on the end of the lifting arm away from the sleeve column.

[0013] Further, the front lifting support is a generator shaft extension end support, and the rear lifting support is a non-generator shaft extension end support.

[0014] Further, the height difference between the front and rear lifting supports is 200mm.

[0015] The utility model discloses a front and rear lifting support are formed by the generator base lifting lug, and the lifting lug is used as the fixing point of the front and rear lifting support, so that the lifting point is formed, and the cooler is convenient to hoist, the height difference between the front and rear lifting supports can pull up one end of the cooler, and the cooler is convenient to disassemble and separate from the generator base, the upper and lower adjusting holes of the supporting rod arranged on the front and rear lifting supports are matched with the upper and lower limiting holes arranged on the lifting lug buckle, the height of the lifting support can be fine adjusted, the height in the narrow space is adjusted, the height space is further reasonably utilized, the sliding supporting adjusting supporting plate is arranged, the supporting rod of the lifting support can be adjusted along the transverse slide rail, that is, the width direction of the generator base, and is suitable for the width requirement of different generator bases, the heat exchanger hoisting device connected with the supporting rod can adjust the height of the lifting arm and can rotate, the heat exchanger is convenient to hoist and move out, so that the heat exchanger is replaced and maintained, time and labor are saved, the whole hoisting tool is of the assembled adjusting type, can be installed and adjusted on site, is convenient to carry and flexible to operate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the supporting rod, the supporting adjusting supporting plate and the transverse slide rail.

[0018] Reference numerals: 1. Front hoisting bracket; 2. Rear hoisting bracket; 3. Transverse slide rail; 4. Support rod; 5. Generator base; 6. Cooler; 7. Hand-operated monorail trolley; 8. Manual traction hoist; 9. Lifting lug buckle; 10. Limiting hole; 11. Adjusting hole; 12. Sliding groove; 13. Support adjusting plate; 14. Lead screw; 15. Adjusting nut; 16. Sleeve column; 17. Hoisting arm; 18. Fixing rod; 19. Lifting point; 20. Base; 21. Heat exchanger; 22. Column. Detailed Implementation

[0019] The present invention will be further described with reference to the accompanying drawings.

[0020] Example 1, Reference Figure 1 A lifting fixture for replacing and repairing a wind turbine cooler includes a front lifting support 1 and a rear lifting support 2. The front lifting support 1 is a support for the generator shaft extension end, and the rear lifting support 2 is a support for the non-generator shaft extension end. Both the front and rear lifting supports include a transverse slide rail 3. Two symmetrically arranged vertical support rods 4 are fixedly connected to the lower ends of the transverse slide rail 3. A lifting lug 9 is connected to the lifting lug of the generator base 5. The lifting lug 9 is provided with two upper and lower limit holes 10. An adjustment hole 11 is also provided at the lower end of the support rod 4. The support rod 4 is fixedly connected to the lifting lug 4 by either the limit hole on the lifting lug 9, the adjustment hole 11, and the lifting lug bolt. The rear lifting support 2 is higher than the front lifting support 1 by a height difference of 200mm. A hand-operated monorail trolley 7 is installed on the transverse slide rail 3 of the front and rear lifting supports and can move left and right along the transverse slide rail 3. A manual traction hoist 8 is connected to the lower part of the hand-operated monorail trolley 7 of the front and rear lifting supports. The cooler 6 is lifted by slings or slings attached to the motor base of the cooler 6. The heat exchanger lifting device is fixed to the support rod 4 located on the side of the heat exchanger 21 by means of buckles or other means. The heat exchanger lifting device includes a base 20, on which a column 22 is vertically installed. The column 22 and the support rod 4 are fixedly connected by fasteners such as buckles or bolts. A vertically installed lead screw 14 is connected to the upper end of the column 22. An adjusting nut 15 is screwed onto the lead screw 14. A sleeve column 16 is installed on the upper end of the adjusting nut 15 through a bearing. A lifting arm 17 is installed on the sleeve column 16 and is perpendicular to the sleeve column 16. Multiple lifting points 19 are provided at the end of the lifting arm 17 away from the sleeve column 16. One end of a fixing rod 18 is connected to the middle of the lifting arm 17. The other end of the fixing rod 18 is connected to the sleeve column 16. It should be noted that the lifting of the lifting arm is not limited to lead screw adjustment. It can also be adjusted by means of cylinders, hydraulic cylinders or other methods.

[0021] In the embodiment, the height and width distance of the front and rear lifting supports are integrally cast or fixedly installed according to the actual distance of the generator base lifting lug and the height of the cooler before use. When used, the front lifting support 1 is arranged at the generator shaft extension end, and the rear lifting support 2 is arranged at the non-generator shaft extension end. The support rods 4 of the front and rear lifting supports are fixedly connected with the lifting lugs of the generator base 5 through the lifting lug buckles 9 and bolts. If the lifting height needs to be adjusted, the adjustment holes 11 on the support rods 4 and the upper and lower limiting holes 10 on the lifting lug buckles 9 are matched to synchronously adjust the installation positions of all the support rods 4 to the same height. The hand-operated single-track travelling crane 7 is installed on the transverse sliding rails 3 of the front and rear lifting supports. The hand-operated single-track travelling crane 7 is connected with the hand-operated traction hoist 8 below. The hand-operated traction hoist 8 is sleeved on the motor base of the cooler 6 through a lifting belt or a lifting cable. The end of the cooler 6 at the non-generator shaft extension end is slowly pulled up first. The bolts between the cooler 6 and the generator base 5 are removed in sequence. The entire cooler 6 is pulled up. The cooler 6 is moved to one side through the hand-operated single-track travelling crane 7. Protective cloth is laid between the cooler 6 and the generator base 5 to prevent foreign matters from falling into the base. The support rods 4 on the side of the heat exchanger 21 are fixedly connected with the stand column 22 through buckles or other fastening modes such as bolts. The sleeve column 16 is adjusted in height through the wrench rotating adjustment nut 15, so that the lifting arm 17 is adjusted in height. Since the sleeve column 16 is connected with the upper end of the adjustment nut 15 through a bearing, the sleeve column 16 can rotate, so that the lifting arm 17 is rotated to the position of the heat exchanger 21. The heat exchanger 21 is removed and pulled out a certain distance. Then, the appropriate lifting point 19 on the lifting arm 17 is selected. The fixed rod 18 plays a role of triangular support. The heat exchanger 21 is hoisted out for replacement or maintenance through a lifting belt. The replacement and maintenance of the cooler in a narrow space are realized, which saves time and effort.

[0022] Embodiment 2, reference Figure 1 and Figure 2 Different from embodiment 1, the front and rear lifting supports each include a transverse sliding rail 3. A sliding groove 12 is formed below the transverse sliding rail 3. A support adjustment supporting plate 13 is arranged in the sliding groove 12. The support adjustment supporting plate 13 can move in the direction of the transverse sliding rail 3 in the sliding groove 12. The support adjustment supporting plate 13 is fixedly connected with the support rod 4 through a bolt. The support adjustment supporting plate 13 is provided with a fixed hole. A plurality of limiting screw holes corresponding to the fixed hole are arranged below the transverse sliding rail 3 along the moving direction of the support adjustment supporting plate 13. The lower end of the support rod 4 is also provided with upper and lower adjustment holes 11.

[0023] In the embodiment, the transverse slide rail 3 and the support rod 4 are bolted through the support adjusting base plate 13. In use, the support adjusting base plate 13 is slid in the sliding groove 12 to adjust the distance between the two support rods 4 of the front and rear lifting supports respectively. After the width is determined, the support adjusting base plate 13 is fixed through the bolt passing through the fixing hole on the support adjusting base plate 13 and cooperating with the limiting screw hole below the transverse slide rail 3. No measurement is needed. The generator base 5 is suitable for adjustment in the width direction, meets the width requirement of different generators, and the lower end of the support rod 4 is also provided with two adjusting holes 11. Any adjusting hole 11 on the support rod 4 can be fixed with any upper and lower limiting hole 10 on the lifting lug buckle 9. The height of the front and rear lifting supports can be further adjusted, the height space can be further reasonably utilized, and the cooler 6 is convenient to replace and maintain. In addition, the embodiment is an assembled adjustment type. The lifting supports can be disassembled and are convenient to disassemble. The lifting supports can not only be adjusted and installed in the limited height and width in a narrow space, but also can be installed and adjusted on site, are convenient to carry, are flexible to operate, meet the replacement and maintenance of various coolers, and have the advantages of being convenient to carry and flexible to operate.

[0024] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments. Any technical solution under the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A wind power generator cooler replacement maintenance hoisting tooling comprising a front hoisting support and a rear hoisting support, characterized in that, The front lifting support and the rear lifting support comprise transverse sliding rails, and symmetrically arranged vertical support rods are connected below both ends of the transverse sliding rails, the lower ends of the support rods of the front lifting support and the rear lifting support are fixedly connected with the lifting lugs of the generator base, a sliding traction lifting device for lifting the cooler is slidingly arranged on the transverse sliding rails of the front lifting support and the rear lifting support, and a heat exchanger lifting device is connected to the support rods on the side close to the heat exchanger of the front lifting support and the rear lifting support.

2. The wind power generator cooler replacement and maintenance hoisting tooling according to claim 1, characterized in that, The lower ends of the support rods of the front lifting support and the rear lifting support are bolted with the lifting lug of the generator base through a lifting lug buckle, and upper and lower limiting holes matched with the holes of the lifting lug of the generator base are formed in the lifting lug buckle.

3. The wind power generator cooler replacement and maintenance hoisting tooling according to claim 2, characterized in that, The lower ends of the support rods of the front lifting support and the rear lifting support are bolted with the lifting lug of the generator base through a lifting lug buckle, and upper and lower limiting holes matched with the holes of the lifting lug of the generator base are formed in the lifting lug buckle.

4. The wind power generator cooler replacement and maintenance hoisting tool of claim 1, wherein, A sliding groove is formed in the lower part of the transverse sliding rail along the length direction of the transverse sliding rail, and a support adjusting supporting plate is slidingly arranged in the sliding groove and fixedly connected with the support rod.

5. The wind power generator cooler replacement and maintenance hoisting tool of claim 1, wherein, The sliding traction lifting device comprises a hand-pulled single-track crane, which is slidingly installed on the transverse sliding rail, and a hand-pulled traction hoist is connected to the lower end of the hand-pulled single-track crane.

6. The wind power generator cooler replacement and maintenance hoisting tool of claim 1, wherein, The heat exchanger lifting device comprises a base, a vertical column is vertically arranged on the base, the vertical column is fixedly connected with the support rod, a vertical screw rod is connected to the upper end of the vertical column, an adjusting nut is screwed on the screw rod, a sleeve column is sleeved on the screw rod, the sleeve column is connected with the upper end of the adjusting nut through a bearing, and a lifting arm is fixedly connected to the sleeve column and arranged perpendicularly to the sleeve.

7. The wind power generator cooler replacement and maintenance hoisting tooling according to claim 6, characterized in that, One end of a fixing rod is connected to the lower part of the middle of the lifting arm, the other end of the fixing rod is connected with the sleeve column, and the lifting arm, the fixing rod and the sleeve column form a triangular support.

8. The wind power generator cooler replacement and maintenance hoisting tooling according to claim 6 or 7, characterized in that, A plurality of lifting points are arranged on the end of the lifting arm away from the sleeve column.

9. The wind power generator cooler replacement and maintenance hoisting tool of claim 1, wherein, The front lifting support is a generator shaft extension end support, and the rear lifting support is a non-generator shaft extension end support, and the height of the rear lifting support is higher than that of the front lifting support.

10. The wind power generator cooler replacement and maintenance hoisting tooling according to claim 1 or 9, characterized in that, The height difference between the front lifting support and the rear lifting support is 200 mm.

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