Crane locking device for cabin maintenance of wind generating set

Abstract

The utility model relates to the technical field of crane locking, in particular to a wind generating set cabin maintenance crane locking device which comprises a monorail trolley capable of sliding along I-shaped steel, a rack is fixedly installed at the upper half end of one side of an I-shaped steel hanging beam, and a telescopic locking clamping block is arranged on one side of a side plate where the monorail trolley is located. A clamping groove matched with the rack protrusion is formed in the side, facing the rack, of the locking clamping block. The rack is installed at the upper half end of the I-shaped steel, the effect of locking the crane is achieved through clamping of the locking clamping block and the rack, the locking device can effectively prevent the crane from accidentally moving or toppling in the operation process, and therefore safety of operators and equipment is protected, clamping of the locking clamping block and the rack is achieved, the structure is simple, and operation is convenient. And a spring is prevented from being used for ejection, the situation that the elastic performance is damaged and the locking effect is affected due to long-time pressing of the spring is avoided, and the locking reliability of the device is guaranteed through the arrangement of a threaded rod and an adjusting sliding block.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane locking technical field, concretely relates to a wind generating set nacelle maintenance crane locking device. BACKGROUND

[0002] A wind generating set nacelle maintenance crane locking device is mainly used for locking the key components of the crane or the crane, to ensure that the crane can stably stay at the specified position and does not move or shake accidentally during the maintenance operation of the wind generating set nacelle.

[0003] Therefore, the patent CN206437786U discloses a wind generating set nacelle maintenance crane fixing locking device, which comprises a handle, a locking pin, a spring, a shell, the shell is fixed on the side plate of the sliding trolley through bolts, the sliding trolley slides on the single track I-beam, a through hole is formed in the side surface of the single track I-beam, one end of the locking pin is fixedly connected with the handle, the other end extends into the shell and can be inserted into the corresponding hole position on the crane beam through the through hole, so as to limit the sliding of the sliding trolley on the crane beam, but a plurality of through holes are formed in the crane beam of the I-beam, which may reduce the cross-sectional area of the I-beam and thus reduce the load-bearing capacity. The larger and more holes are, the more obvious the weakening of the load-bearing capacity is, which may not meet the requirements of hoisting the related components of the wind generating machine, and may cause local deformation or fracture of the single track I-beam, thereby causing property loss and safety hazards.

[0004] Therefore, it is necessary to invent a wind generating set nacelle maintenance crane locking device to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to solve the problems of the prior art, the utility model aims at providing a wind generating set nacelle maintenance crane locking device, which solves the problem that a plurality of through holes are formed in the crane beam of the I-beam, which may not meet the requirements of hoisting the related components of the wind generating machine, and may cause local deformation or fracture of the single track I-beam, thereby causing property loss and safety hazards.

[0006] In order to achieve the above-mentioned target, the utility model adopts the following technical scheme:

[0007] A wind generating set nacelle maintenance crane locking device comprises a single track trolley which can slide along an I-beam, a rack is fixedly installed on one side of the I-beam crane beam, a telescopic locking block is arranged on one side of the side plate of the single track trolley, and a clamping groove which is matched with the protrusions of the rack is formed on the side of the locking block which faces the rack.

[0008] As one preferred scheme of the utility model, the outer side wall of the side plate is provided with an installation frame matched with the height position of the rack, one end of the locking block away from the rack is connected with a guide rod, one end of the guide rod penetrates through the side plate and extends to the inside of the installation frame, and the guide rod can reciprocate and slide towards the direction where the rack is located.

[0009] As one preferred scheme of the utility model, one side of the guide rod inside the installation frame is provided with an adjusting sliding block, and the end of the guide rod is provided with a connecting rod penetrating through the guide rod and extending to the outside of the adjusting sliding block.

[0010] As one preferred scheme of the utility model, one side of the installation frame close to the side plate is layer one, and the side away from the side plate is layer two, two screw rods with opposite rotation directions are installed inside layer one, one end of the screw rod penetrates through layer one and extends to layer two, and two spur gears meshing with each other are installed at one end of the screw rod in layer two.

[0011] As one preferred scheme of the utility model, the screw rod and the adjusting sliding block are in threaded connection, and the two screw rods can synchronously drive the adjusting sliding block to slide inwards or outwards.

[0012] As one preferred scheme of the utility model, a rotating motor is installed at the outside of layer two, and the output end of the rotating motor penetrates through layer two and is in detachable connection with one of the screw rods.

[0013] As one preferred scheme of the utility model, the outside of the spur gear meshing with the screw rod where the rotating motor is located is provided with a handle facilitating rotation.

[0014] In the above technical scheme, the utility model provides technical effects and advantages:

[0015] In the utility model, the rack is installed at the upper half end of the I-shaped steel, the locking effect of the crane can be realized by the clamping of the locking block and the rack without interfering with the movement of the monorail trolley, the locking device can effectively prevent the crane from moving or toppling over during operation, thereby protecting the safety of the operating personnel and equipment, the working principle is that the two screw rods are synchronously rotated by manually rotating the spur gear or by the rotating motor, the adjusting sliding block is pushed out by the screw rod, the guide rod is pushed out by the adjusting sliding block, the clamping of the locking block and the rack is realized, the structure is simple, the spring is avoided to be pushed out, the elastic performance of the spring is avoided to be damaged due to long-time pressure, the locking effect is affected, the reliability of the device locking is ensured by the setting of the screw rod and the adjusting sliding block. BRIEF DESCRIPTION OF DRAWINGS

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

[0017] Figure 2 The partial structure diagram after removing the shell of the utility model is shown in the figure;

[0018] Figure 3 The schematic diagram of adjusting the position of the sliding block of the utility model is shown in the figure;

[0019] Figure 4 The assembly schematic diagram of the threaded rod and the guide rod of the utility model is shown in the figure.

[0020] Mark 1, I-beam; 2, monorail trolley; 3, side plate; 4, mounting frame; 5, rack; 6, locking block; 7, rotating motor; 8, spur gear; 9, adjusting sliding block; 10, connecting rod; 11, threaded rod; 12, handle; 13, clamping groove; 14, guide rod; 15, layer one; 16, layer two. DETAILED DESCRIPTION

[0021] The utility model is further described below in combination with the drawings. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0022] The utility model provides a kind of wind generating set cabin maintenance crane locking device as shown in Figures 1-4 Including the monorail trolley 2 that can slide along I-beam 1, rack 5 is fixedly installed on the upper half end of the side of the I-beam 1 suspension beam, the side of the side plate 3 where the monorail trolley 2 is located is provided with retractable locking block 6, the side of locking block 6 facing rack 5 is provided with clamping groove 13 compatible with the protrusion of rack 5, since the meshing area between rack 5 and clamping groove 13 is relatively large, this structure can withstand larger power load, and is not prone to fracture or failure, thereby ensuring the high reliability of locking.

[0023] The outer side wall of the side plate 3 is provided with mounting frame 4 compatible with the height position of rack 5, the end face of locking block 6 away from rack 5 is connected with guide rod 14, one end of guide rod 14 penetrates through side plate 3 and extends to the inside of mounting frame 4, guide rod 14 can reciprocate slide towards the direction where rack 5 is located, the side of side plate 3 needs to extend above the height where rack 5 is located, so that mounting frame 4 and locking block 6 can mesh with rack 5, rack 5 can be fixed on the side of I-beam 1 by welding, to avoid the loosening of rack 5, which leads to the reduction of locking effect.

[0024] The guide rod 14 is fitted with an adjusting slider 9 on one side inside the mounting frame 4. A connecting rod 10 is provided at the end of the guide rod 14. The connecting rod 10 passes through the guide rod 14 and extends to the outside of the adjusting slider 9. The connecting rod 10 facilitates the disassembly and assembly of the guide rod 14, thereby reducing the maintenance difficulty and maintenance cost of the device.

[0025] The mounting frame 4 has a first layer 15 on the side closer to the side plate 3 and a second layer 16 on the side farther away from the side plate 3. Two threaded rods 11 with opposite directions of rotation are installed inside the first layer 15. One end of the threaded rod 11 passes through the first layer 15 and extends to the second layer 16. Two meshing spur gears 8 are installed at the end of the threaded rod 11 located in the second layer 16. The spur gears 8 are set to realize the synchronous rotation of the two threaded rods 11, thereby pushing the adjusting slider 9 out horizontally.

[0026] The threaded rod 11 and the adjusting slider 9 form a threaded connection. The two threaded rods 11 can synchronously drive the adjusting slider 9 to slide inward or outward. The arrangement of the threaded rod 11 and the adjusting slider 9 is simple in structure, easy to maintain, and has low maintenance cost.

[0027] A rotary motor 7 is installed on the outer side of the second layer 16. The output end of the rotary motor 7 passes through the second layer 16 and is detachably connected to one of the threaded rods 11. The rotary motor 7 helps to realize the automatic release function, realize the automation of locking, and improve work efficiency.

[0028] A handle 12 is provided on the outside of the spur gear 8 that meshes with the threaded rod 11 of the rotating motor 7. The handle 12 facilitates the manual loosening and releasing of the locking device, thereby improving the applicability of the product.

[0029] This invention, by installing a rack 5 on the upper half of the I-beam 1, achieves the locking effect of the crane by engaging the locking block 6 with the rack 5 without interfering with the movement of the monorail trolley 2. The locking device effectively prevents the crane from moving or tipping over during operation, thus protecting the safety of operators and equipment. Its working principle is as follows: by manually or by rotating the spur gear 8 through the rotating motor 7, the two threaded rods 11 rotate synchronously. The threaded rods 11 drive the adjusting slider 9 to push outward, and the adjusting slider 9 drives the guide rod 14 to push out, thus achieving the engagement of the locking block 6 with the rack 5. Its structure is simple, avoiding the use of springs for pushing out, and avoiding the loss of elasticity due to prolonged compression of the spring, which would affect the locking effect. The setting of the threaded rods 11 and the adjusting slider 9 ensures the reliability of the locking device.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A locking device for a maintenance crane on a wind turbine generator nacelle, characterized in that: Includes a monorail trolley (2) that can slide along the I-beam (1). A rack (5) is fixedly installed on the upper half of one side of the I-beam (1) lifting beam. A retractable locking block (6) is provided on one side of the side plate (3) where the monorail trolley (2) is located. The locking block (6) has a slot (13) on the side facing the rack (5) that matches the protrusion of the rack (5).

2. The locking device for the maintenance crane of a wind turbine generator nacelle according to claim 1, characterized in that: The outer wall of the side plate (3) is fitted with a mounting frame (4) that is adapted to the height position of the rack (5). The locking block (6) is connected to a guide rod (14) at one end away from the rack (5). One end of the guide rod (14) passes through the side plate (3) and extends into the interior of the mounting frame (4). The guide rod (14) can slide back and forth in the direction of the rack (5).

3. A locking device for a wind turbine generator nacelle maintenance crane according to claim 2, characterized in that: The guide rod (14) is fitted with an adjusting slider (9) on one side inside the mounting frame (4). A connecting rod (10) is provided at the end of the guide rod (14). The connecting rod (10) passes through the guide rod (14) and extends to the outside of the adjusting slider (9).

4. The locking device for the maintenance crane of a wind turbine generator nacelle according to claim 3, characterized in that: The mounting frame (4) has a layer 1 (15) on the side closer to the side plate (3) and a layer 2 (16) on the side away from the side plate (3). Two threaded rods (11) with opposite directions of rotation are installed inside the layer 1 (15). One end of the threaded rod (11) passes through the layer 1 (15) and extends to the layer 2 (16). Two meshing spur gears (8) are installed at the end of the threaded rod (11) located in the layer 2 (16).

5. A locking device for a wind turbine generator nacelle maintenance crane according to claim 4, characterized in that: The threaded rod (11) and the adjusting slider (9) form a threaded connection, and the two threaded rods (11) can synchronously drive the adjusting slider (9) to slide inward or outward.

6. A locking device for a wind turbine generator nacelle maintenance crane according to claim 4, characterized in that: A rotating motor (7) is installed on the outside of the second layer (16). The output end of the rotating motor (7) passes through the second layer (16) and is detachably connected to one of the threaded rods (11).

7. A locking device for a wind turbine generator nacelle maintenance crane according to claim 4, characterized in that: A handle (12) for easy rotation is provided on the outside of the spur gear (8) that meshes with the threaded rod (11) where the rotating motor (7) is located.

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