Special tool for impeller lock of wind turbine generator

Abstract

The utility model discloses a special tool for an impeller lock of a wind turbine generator set, which belongs to the technical field of maintenance of the impeller lock of the wind turbine generator set, aims to solve the problem that the impeller lock is easy to damage when being pulled out by a hoist chain block and a hammer, and comprises a dismounting flange arranged on a baffle plate of the impeller lock, a dismounting sleeve which is in threaded connection with the impeller locking screw rod is slidably mounted in the dismounting flange, a handle is slidably mounted in one end of the dismounting sleeve, a hydraulic stretcher is connected to the outer portion of the dismounting sleeve between the handle and the dismounting flange in a sleeving mode, and the dismounting flange is additionally provided with the dismounting sleeve; the fixed impeller lock can axially move on an original rail, tools do not need to be fixed in a manual or simple binding mode, manpower is liberated, and potential safety hazards do not exist. The impeller lock can be pulled manually and can also be pulled through a hydraulic stretcher, the functionality is high, the impeller lock can be detached conveniently, and the impeller lock cannot be damaged basically.

Description

TECHNICAL FIELD

[0001] The utility model belongs to wind turbine impeller lock overhauling technical field, specifically relates to wind turbine impeller lock special tool technical field. BACKGROUND

[0002] The domestic mainstream wind turbine impeller lock uses mode generally divides into rotating push in type impeller lock, direct push in type impeller lock.

[0003] Rotating push in type impeller lock: through the screwing of impeller lock bolt, inserts the impeller lock into the main shaft flange plate, and completes the fan impeller brake.

[0004] Direct push in type impeller lock: through the opening of baffle, loosens the lock nut, and then pushes the push rod into the main shaft flange plate, adjusts the position of lock nut, and then inserts the baffle, and completes the fan impeller brake.

[0005] The above two kinds of impeller lock use mode, in the routine wind turbine inspection, maintenance, overhauling process, due to the impeller micro-motion, improper operation, maintenance not in place and other reasons, often appears the impeller lock jam, lock and other situations, when the above situation is very difficult to solve the above problems.

[0006] According to the present situation investigation, the main reason of wind turbine impeller lock failure is that the impeller lock jam, lock and other situations caused by the impeller micro-motion, improper operation, maintenance not in place and other reasons in the routine wind turbine inspection, maintenance, overhauling process when using the impeller lock, and the impeller lock belongs to non-precision fit mechanical structure, and the impeller micro-motion, improper operation, maintenance not in place and other situations cannot be avoided, and the biggest problem mainly exists is that the impeller lock is very difficult to pull out.

[0007] The most original hoist chain and iron hammer method is used at present to pull out the impeller lock, so that damage is prone to occur when pulling out, in order to solve the above problems, the utility model provides a wind turbine impeller lock special tool. Utility model content

[0008] The utility model solves the technical problem that the existing defects are overcome, and a wind turbine impeller lock special tool is provided, so that the impeller lock is pulled out by the hoist chain and iron hammer method, so that damage is prone to occur when pulling out.

[0009] In order to achieve the above object, the utility model provides the following technical scheme:

[0010] The utility model provides a special tool for wind turbine impeller lock, including the dismounting flange of impeller lock baffle, the inside of the dismounting flange is slidably installed with the dismounting sleeve pipe that is connected with the screw rod of impeller lock through the thread, the inside of one end of the dismounting sleeve pipe is slidably installed with the handle, and the outside of the dismounting sleeve pipe between the handle and the dismounting flange is sleeved with hydraulic stretcher.

[0011] As a preferred technical scheme of the utility model, a through hole is formed in the other end of the dismounting sleeve pipe, a thread is arranged on the hole wall of the through hole, and a mounting hole is formed on the dismounting sleeve pipe at a position corresponding to the handle.

[0012] As a preferred technical scheme of the utility model, a connecting hole is arranged on the dismounting flange, and a bolt for fixation is slidably installed in the connecting hole.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the dismounting flange and the dismounting sleeve pipe can make the fixed impeller lock axially move on the original track, without the need for artificial or simple binding to fix the tool, thus liberating manpower and having no safety hazards; the tool can be manually pulled or pulled by using the hydraulic stretcher, is relatively strong in function, is convenient for dismounting the impeller lock, basically does not cause damage to the impeller lock, and meets the use requirements of people. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Fig. 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] 1 - dismounting sleeve pipe; 11 - through hole; 12 - thread; 13 - mounting hole; 2 - dismounting flange; 21 - connecting hole; 22 - bolt; 3 - hydraulic stretcher; 4 - handle. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figs. 1-2 The utility model provides a technical scheme:

[0019] The utility model provides a special tool for wind turbine impeller lock, which comprises a dismounting flange 2 installed on the impeller lock baffle, a dismounting sleeve 1 with a threaded connection with the impeller lock screw is slidably installed inside the dismounting flange 2, a handle 4 is slidably installed inside one end of the dismounting sleeve 1, and a hydraulic stretcher 3 is sleeved outside the dismounting sleeve 1 between the handle 4 and the dismounting flange 2.

[0020] A through hole 11 is formed in the other end of the dismounting sleeve 1, a thread 12 is arranged on the hole wall of the through hole 11, and a mounting hole 13 is formed in the dismounting sleeve 1 at a position corresponding to the handle 4, and the dismounting sleeve 1 around the mounting hole 13 is solid, so as to prevent deformation.

[0021] The dismounting flange 2 is provided with a plurality of connecting holes 21, and a bolt 22 used for fixation is slidably installed inside the connecting holes 21, so as to facilitate the installation of the dismounting flange 2.

[0022] When the impeller lock is stuck and cannot be pulled out normally, the impeller lock baffle and the bolt are removed first, the dismounting sleeve 1 is installed on the impeller lock screw, the dismounting sleeve 1 has a thread 12 inside, which can be directly screwed into the impeller lock screw as the main force point for pulling. The dismounting flange 2 is installed at the position of the impeller lock baffle and screwed into the tool bolt 22, so as to install the dismounting flange 2 at the position of the impeller lock baffle, the hydraulic stretcher 3 is sleeved on the dismounting sleeve 1 as the main power source, the handle 4 on the dismounting sleeve 1 is installed, the whole tool is installed, the pressure rod for controlling the work of the hydraulic stretcher 3 is pressed, and thus the impeller lock can be gradually pulled out from the impeller lock stroke channel, the work is completed, and the operation is simple and convenient for use.

[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A wind turbine rotor wheel lock special tool characterized by: Including the installation in the impeller lock baffle on the dismounting flange (2), the inside of the dismounting flange (2) sliding installation has with the dismounting sleeve pipe (1) of the impeller lock screw through the thread connection, the inside of the one end of the dismounting sleeve pipe (1) sliding installation has the handle (4), the outside of the dismounting sleeve pipe (1) between the handle (4) and the dismounting flange (2) is sleeved with the hydraulic stretcher (3).

2. A wind turbine rotor wheel lock special tool according to claim 1, characterized in that: The other end of the dismounting sleeve pipe (1) is internally provided with a through hole (11), and a thread (12) is arranged on the hole wall of the through hole (11). An installation hole (13) is formed on the dismounting sleeve pipe (1) at a position corresponding to the handle (4).

3. A wind turbine rotor blade lock special tool according to claim 1, characterized in that: The dismounting flange (2) is provided with a connecting hole (21), and a bolt (22) used for fixing is slidingly installed in the connecting hole (21).

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