Hoisting equipment for replacing main shaft bearing of wind driven generator

Abstract

The utility model discloses a hoisting device for replacing a spindle bearing of a wind driven generator. A connecting box is fixedly connected to the right side of the crane, a winding mechanism is fixedly connected to the right side of the inner wall of the connecting box, an anti-shake mechanism is transversely and fixedly connected to the bottom of an inner cavity of the connecting box, the winding mechanism comprises a servo motor, a winding wheel, a steel cable and a lifting appliance, and the servo motor is fixedly connected to the right side of the inner wall of the connecting box; the output end of the servo motor is fixedly connected with a winding wheel, the left side of the winding wheel is movably connected with the left side of the inner wall of the connecting box through a rotating shaft, a steel cable is wound around the surface of the winding wheel, and the end, away from the winding wheel, of the steel cable penetrates through the bottom of the connecting box and is fixedly connected with a lifting tool. Through the arrangement of the winding mechanism, the servo motor can work to drive the winding wheel to rotate clockwise, the winding wheel rotates clockwise to drive the steel cable to be wound and unwound, and the steel cable is wound and unwound to drive the lifting appliance to move up and down, so that goods are lifted.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting, in particular to a hoisting device for replacing a main shaft bearing of a wind turbine generator. Background Art

[0002] Hoisting refers to the general term for the installation and positioning of equipment by a crane or a lifting mechanism. During the inspection or maintenance process, various lifting machines and tools are used to lift equipment, workpieces, tools, materials, etc. to change their positions. In the comparative case, publication number CN215946560U, the utility model discloses a wind turbine main shaft flip hoisting device, which includes a lifting box and a lifting rod, one end of which is provided with a guide wheel, the other end of which is fixedly provided with a fixing plate, and the outside of the guide wheel is wrapped with a traction rope. One end of the traction rope is connected to the lifting box; a clamping plate, two of the clamping plates are arranged inside the lifting box, which can clamp and fix the generator main shaft, and an installation groove is provided inside the lifting box. A sliding rod is provided at one end of the clamping plate, and a sleeve is provided on the outside of the sliding rod, and one end of the sleeve is connected to a motor; the clamping mechanism can drive the two clamping plates to approach each other to fix the generator main shaft; the wind turbine main shaft flipping hoisting equipment lifts the main shaft inside the lifting box through the traction rope, and the motor can drive the main shaft to flip, which is convenient for processing different positions of the main shaft.

[0003] However, in the implementation of relevant technologies, it was found that the above-mentioned wind turbine main shaft flipping hoisting equipment has the following problems. In the comparative case, the lifting and traction are achieved through the combined use of structures such as a lifting box, a lifting rod, a guide wheel and a traction rope. The structure is complex and occupies a large space. The heavier the lifting cargo during processing, the greater the swing amplitude of the steel cable during transportation, which is easy to cause breakage, reducing the stability of the lifting equipment.

[0004] Therefore, it is necessary to redesign the lifting equipment to effectively prevent the problem that the heavier the lifted goods are, the greater the swing amplitude of the steel cable will be during transportation, which may easily lead to breakage. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present utility model is to provide a wind turbine main shaft bearing replacement lifting device, which has the advantages of good anti-shake and stability effects, and solves the problem that the heavier the lifted goods are during processing, the greater the swing amplitude of the steel cable during transportation, which is easy to cause breakage.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wind turbine main shaft bearing replacement and hoisting device, comprising:

[0007] crane;

[0008] The right side of the crane is fixedly connected to a connection box, the right side of the inner wall of the connection box is fixedly connected to a winding mechanism, and the bottom of the inner cavity of the connection box is laterally fixedly connected to an anti-shake mechanism;

[0009] The winding mechanism includes a servo motor, a winding wheel, a steel cable and a sling, the right side of the inner wall of the connection box is fixedly connected to the servo motor, the output end of the servo motor is fixedly connected to the winding wheel, the left side of the winding wheel is movably connected to the left side of the inner wall of the connection box through a rotating shaft, the surface of the winding wheel is wrapped with a steel cable, and the end of the steel cable away from the winding wheel passes through the bottom of the connection box and is fixedly connected to the sling;

[0010] The anti-shake mechanism includes a transverse plate, a sliding column, a sliding sleeve and a hollow sleeve. The bottom of the inner cavity of the connecting box is transversely fixedly connected with the transverse plate, the front end and the back end of the inner wall of the transverse plate are slidingly connected with the sliding column, the inner side of the sliding column is fixedly connected with the sliding sleeve, the inner side of the sliding sleeve is fixedly sleeved with a hollow sleeve, the inner cavity of the hollow sleeve is sleeved on the surface of the steel cable, and the top and bottom of the hollow sleeve respectively pass through the inner side of the transverse plate.

[0011] As a preferred embodiment of the present invention, an opening is provided at the bottom of the connection box corresponding to the position of the steel cable, and the opening is used in conjunction with the steel cable.

[0012] As a preferred embodiment of the present invention, the front end and the back end of the inner wall of the horizontal plate are provided with sliding rails, the left and right sides of the inner wall of the sliding rails are fixedly connected with damping springs, and the inner side of the damping spring is fixedly connected to the surface of the sliding column.

[0013] As a preferred embodiment of the present invention, sliding grooves are provided at the top and bottom of the horizontal plate at positions corresponding to the hollow sleeves, and the sliding grooves are used in conjunction with the hollow sleeves.

[0014] As a preferred embodiment of the present invention, the left and right sides of the crane are fixedly connected with reinforcement columns, and one end of the reinforcement column away from the crane is in contact with the ground.

[0015] As a preferred embodiment of the present invention, anti-slip discs are fixedly sleeved on the left and right sides of the surface of the winding wheel, and the anti-slip discs are used in conjunction with the winding wheel.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The utility model is provided with a winding mechanism, which enables the servo motor to drive the winding wheel to rotate clockwise, and the clockwise rotation of the winding wheel drives the steel cable to be retracted and released, and the steel cable retracted and released operation drives the sling to move up and down to lift the goods.

[0018] 2. The utility model sets an anti-shake mechanism, which can make the steel cable swing during the winding operation and drive the hollow sleeve to move accordingly. The change in the position of the hollow sleeve drives the sliding sleeve and the sliding column to move synchronously. The movement of the sliding column cooperates with the damping spring to reduce the swing kinetic energy until it is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 The three-dimensional diagram of the connection box structure;

[0021] Figure 3 For this utility model Figure 2 Three-dimensional diagram of the middle cross plate structure;

[0022] Figure 4 For this utility model Figure 3 Three-dimensional diagram of the middle sliding column and sliding sleeve structure.

[0023] In the figure: 1. Crane; 2. Connecting box; 3. Winding mechanism; 31. Servo motor; 32. Winding wheel; 33. Steel cable; 34. Spreader; 4. Anti-shake mechanism; 41. Cross plate; 42. Sliding column; 43. Sliding sleeve; 44. Hollow sleeve; 5. Opening; 6. Sliding rail; 7. Damping spring; 8. Slide groove; 9. Reinforcement column; 10. Anti-slip disc. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1 to 4 As shown, the utility model provides a wind turbine main shaft bearing replacement and hoisting device, comprising:

[0026] Crane 1;

[0027] The right side of the crane 1 is fixedly connected to a connection box 2, the right side of the inner wall of the connection box 2 is fixedly connected to a winding mechanism 3, and the bottom of the inner cavity of the connection box 2 is laterally fixedly connected to an anti-shake mechanism 4;

[0028] The winding mechanism 3 includes a servo motor 31, a winding wheel 32, a steel cable 33 and a sling 34. The servo motor 31 is fixedly connected to the right side of the inner wall of the connection box 2. The output end of the servo motor 31 is fixedly connected to the winding wheel 32. The left side of the winding wheel 32 is movably connected to the left side of the inner wall of the connection box 2 via a rotating shaft. The surface of the winding wheel 32 is wrapped with a steel cable 33. The end of the steel cable 33 away from the winding wheel 32 passes through the bottom of the connection box 2 and is fixedly connected to the sling 34.

[0029] The anti-shake mechanism 4 includes a transverse plate 41, a sliding column 42, a sliding sleeve 43 and a hollow sleeve 44. The bottom of the inner cavity of the connecting box 2 is transversely fixedly connected with the transverse plate 41, the front end and the back end of the inner wall of the transverse plate 41 are slidingly connected with the sliding column 42, the inner side of the sliding column 42 is fixedly connected with the sliding sleeve 43, the inner side of the sliding sleeve 43 is fixedly sleeved with the hollow sleeve 44, the inner cavity of the hollow sleeve 44 is sleeved on the surface of the steel cable 33, and the top and bottom of the hollow sleeve 44 respectively pass through the inner side of the transverse plate 41.

[0030] refer to Figure 2 An opening 5 is provided at the bottom of the connection box 2 and corresponds to the position of the steel cable 33 , and the opening 5 is used in conjunction with the steel cable 33 .

[0031] As a technical optimization solution of the present invention, the setting of the opening 5 can enable the steel cable 33 to pass through the opening 5 completely for mechanical transmission, avoiding the phenomenon that the steel cable 33 is stuck at the opening 5 due to the width of the opening 5 being too narrow.

[0032] refer to Figure 3 The front end and the back end of the inner wall of the horizontal plate 41 are both provided with a slide rail 6, and the left and right sides of the inner wall of the slide rail 6 are fixedly connected with a damping spring 7, and the inner side of the damping spring 7 is fixedly connected to the surface of the slide column 42.

[0033] As a technical optimization solution of the present invention, the setting of the slide rail 6 and the damping spring 7 can assist the slide column 42 in working and play a guiding and resetting role, thereby avoiding the slide column 42 being unable to reset after moving, resulting in the machine being unable to continue working.

[0034] refer to Figure 2 The top and bottom of the horizontal plate 41 and the positions corresponding to the hollow sleeve 44 are both provided with a slide groove 8, and the slide groove 8 is used in conjunction with the hollow sleeve 44.

[0035] As a technical optimization solution of the present invention, the provision of the slide groove 8 enables the hollow sleeve 44 to move along the slide groove 8 , thereby preventing the hollow sleeve 44 from being offset during the movement.

[0036] refer to Figure 1 The left and right sides of the crane 1 are fixedly connected with reinforcement columns 9, and the end of the reinforcement column 9 away from the crane 1 is in contact with the ground.

[0037] As a technical optimization solution of the present invention, the arrangement of the reinforcement column 9 can assist the crane 1 in its work and at the same time play a fixing role, thereby avoiding the phenomenon of the crane 1 shaking due to excessive load during operation.

[0038] refer to Figure 2 The left and right sides of the surface of the winding wheel 32 are fixedly sleeved with anti-slip discs 10, which are used in conjunction with the winding wheel 32.

[0039] As a technical optimization solution of the present invention, the provision of the anti-slip disc 10 can assist the winding wheel 32 in working, thereby preventing the steel cable 33 on the surface of the winding wheel 32 from detaching during the winding process.

[0040] The working principle and use process of the utility model are as follows: when in use, the crane 1 is controlled to make the connection box 2 just above the cargo, and then the servo motor 31 is started to work. The servo motor 31 drives the winding wheel 32 to rotate clockwise to release the wound steel cable 33. The steel cable 33 extends out of the connection box 2 along the opening 5 and drives the sling 34 to fall next to the cargo and then manually fix it to prepare for lifting. After the sling 34 is fixed, the servo motor 31 is started counterclockwise to work. The servo motor 31 drives the winding wheel 32 to rotate in the opposite direction to drive The steel cable 33 is wound and drives the sling 34 and the cargo to complete the lifting. During the winding process, the steel cable 33 swings due to the influence of the restricted length and the external wind direction on the cargo. The swing of the steel cable 33 drives the hollow sleeve 44 and the sliding sleeve 43 to move left and right. The movement of the sliding sleeve 43 drives the sliding column 42 to move along the slide rail 6 and compress the damping spring 7 to do work. The damping spring 7 is compressed and reset to offset the shaking kinetic energy to keep it stable. The steel cable 33 remains stable under the resistance of the hollow sleeve 44 so that the surface of the winding wheel 32 wrapped around the steel cable 33 will not overlap or intertwine.

[0041] To sum up: the wind turbine main shaft bearing replacement lifting equipment, through the cooperation of crane 1, connecting box 2, winding mechanism 3, servo motor 31, winding wheel 32, steel cable 33, hoist 34, anti-shake mechanism 4, cross plate 41, sliding column 42, sliding sleeve 43 and hollow sleeve 44, solves the problem of existing lifting equipment in processing that the heavier the lifted goods, the greater the swing amplitude of the steel cable during transportation, which is easy to cause breakage.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine main shaft bearing replacement and hoisting device, characterized in that: include: Crane (1); The right side of the crane (1) is fixedly connected to a connection box (2), the right side of the inner wall of the connection box (2) is fixedly connected to a winding mechanism (3), and the bottom of the inner cavity of the connection box (2) is laterally fixedly connected to an anti-shake mechanism (4); The winding mechanism (3) comprises a servo motor (31), a winding wheel (32), a steel cable (33) and a sling (34); the right side of the inner wall of the connection box (2) is fixedly connected to the servo motor (31); the output end of the servo motor (31) is fixedly connected to the winding wheel (32); the left side of the winding wheel (32) is movably connected to the left side of the inner wall of the connection box (2) via a rotating shaft; the surface of the winding wheel (32) is wound with a steel cable (33); the end of the steel cable (33) away from the winding wheel (32) passes through the bottom of the connection box (2) and is fixedly connected to the sling (34); The anti-shake mechanism (4) includes a transverse plate (41), a sliding column (42), a sliding sleeve (43) and a hollow sleeve (44); the bottom of the inner cavity of the connecting box (2) is transversely fixedly connected to the transverse plate (41); the front end and the back end of the inner wall of the transverse plate (41) are slidably connected to the sliding column (42); the inner side of the sliding column (42) is fixedly connected to the sliding sleeve (43); the inner side of the sliding sleeve (43) is fixedly sleeved with the hollow sleeve (44); the inner cavity of the hollow sleeve (44) is sleeved on the surface of the steel cable (33); the top and bottom of the hollow sleeve (44) respectively pass through the inner side of the transverse plate (41).

2. The wind turbine main shaft bearing replacement and hoisting equipment according to claim 1, characterized in that: An opening (5) is provided at the bottom of the connection box (2) and at a position corresponding to the steel cable (33), and the opening (5) is used in conjunction with the steel cable (33).

3. The wind turbine main shaft bearing replacement and hoisting equipment according to claim 1, characterized in that: The front end and the back end of the inner wall of the transverse plate (41) are both provided with a slide rail (6), the left side and the right side of the inner wall of the slide rail (6) are both fixedly connected with a damping spring (7), and the inner side of the damping spring (7) is fixedly connected to the surface of the slide column (42).

4. The wind turbine main shaft bearing replacement and hoisting equipment according to claim 1, characterized in that: The top and bottom of the transverse plate (41) and the positions corresponding to the hollow sleeve (44) are both provided with sliding grooves (8), and the sliding grooves (8) are used in conjunction with the hollow sleeve (44).

5. The wind turbine main shaft bearing replacement and hoisting equipment according to claim 1, characterized in that: The left and right sides of the crane (1) are both fixedly connected with reinforcement columns (9), and one end of the reinforcement column (9) away from the crane (1) is in contact with the ground.

6. The wind turbine main shaft bearing replacement and hoisting equipment according to claim 1, characterized in that: The left and right sides of the surface of the winding wheel (32) are both fixedly sleeved with anti-slip discs (10), and the anti-slip discs (10) are used in conjunction with the winding wheel (32).

Images