Foldable safety grab handle device for barring pinion of wind generating set

Abstract

The utility model relates to a foldable safety grab handle device for a barring pinion of a wind generating set, which comprises a gear and a handle, a preformed hole is arranged on the gear, the handle is connected with the gear through a fixing seat, the fixing seat penetrates through the preformed hole by means of a fixing bolt to fix the handle on the gear, and after installation is completed, the handle is fixed on the gear through the fixing bolt. The handle is in a normal use state, normal operation, mounting and dismounting operation of the gear are not affected, the handle can be held by an operator to operate the gear, and the hand is prevented from making contact with a gear meshing dangerous area. Through the design of the handle, when an operator operates the small gear of the jigger, the hand is effectively guided to a safe position far away from a gear meshing danger area, accidental injury hidden dangers such as hand stirring and squeezing caused by factors such as sudden rotation of the gear and improper operation are thoroughly eliminated, and a solid barrier is provided for personal safety of the operator.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation equipment safety protection and auxiliary operation technical field, concretely is a kind of foldable safety handle device for wind turbine set disc car pinion. BACKGROUND

[0002] With the increasing demand for clean energy worldwide, wind power generation, as an important way of renewable energy utilization, has developed rapidly. In recent years, the power and impeller diameter of wind turbines have been increasing, which has prompted wind turbine manufacturers to continuously optimize the disc car related devices and mechanisms.

[0003] In early wind power generation technology, for wind turbines with gearboxes, the traditional manual rotation of the brake disc for disc car is more common. However, with the expansion of the unit scale, this manual method is inefficient and labor-intensive, and has been gradually abandoned. Currently, for high-power long-blade wind turbines, a portable electric disc car gun is mostly used. The electric disc car gun uses an electric wrench to drive the pinion gear to mesh with the large gear of the generator to rotate and achieve the purpose of disc car.

[0004] However, in actual operation, serious safety hazards have been exposed. Since the disc car pinion does not have an additional safety handle device, workers have to hold the pinion with their hands to install and disassemble the disc car gun. In this process, if improper operation occurs, such as excessive force, installation angle deviation, brake disc not locked, sudden gust of wind, or unexpected factors such as equipment failure and external impact causing the gear to suddenly rotate, the worker's hand is easily caught in the gear meshing position, causing crushing and winding injuries. According to industry statistics, there have been multiple cases of hand mechanical injury accidents caused by the use of disc car guns, not only causing great physical and mental pain to workers, but also causing economic losses to wind power enterprises, including medical expenses, downtime losses, and potential legal dispute costs.

[0005] In addition, some existing temporary protective measures are either too simple and ineffective, or severely affect the normal operation of the gear, the installation and disassembly process, or occupy a large amount of space when stored, interfering with the normal maintenance and operation of other components around the equipment, making it difficult to meet the complex and efficient operation requirements of wind turbines.

[0006] In summary, it is urgent to develop a safety handle device for disc car pinion of wind turbines that can effectively protect workers' safety, does not affect the normal operation of the equipment, is convenient to operate, and has good space adaptability, which lays the foundation for the birth of this patent technology. UTILITY MODEL CONTENTS

[0007] The utility model discloses in order to solve the prior art's problem, provide a kind of for wind turbine unit disc wheel pinion foldable safety handle device.

[0008] In order to solve the above technical problems, the utility model is realized by the following technical schemes: a kind of for wind turbine unit disc wheel pinion foldable safety handle device, including gear and handle, gear is equipped with reserved hole, handle is connected with gear by fixed base, and fixed base is fixed with handle on gear by means of fixed bolt through reserved hole, after installation is completed, handle is in normal use state, does not affect the normal operation, installation and disassembly operation of gear, and can be held by operating personnel to operate gear, avoid hand contact gear engagement dangerous area.

[0009] In the present mode, by the setting of handle, when operating disc wheel pinion of wind turbine unit, hand can be held on handle, direct contact with gear engagement dangerous area is completely avoided, the risk of hand stirring roll, extrusion and other accidental injuries caused by accidental rotation of gear is fundamentally reduced, the personal safety of operating personnel is effectively guaranteed;Handle is in normal use state, provides stable and reliable force point for operating personnel, so that accurate force can be applied when disc wheel operation is carried out, potential safety hazards caused by improper operation are reduced, and the whole disc wheel process is more safe and controllable.

[0010] In some specific implementation modes, handle is rotatably connected with fixed base, which facilitates folding storage.

[0011] In some specific implementation modes, handle is designed to be foldable, folding function is realized through hinged structure, and folding storage can be realized when not in use, without occupying additional space and without affecting the normal operation of other components around gear, the hinged structure includes hinged ears arranged on both sides of folding part of handle, and a hinged shaft penetrating through the hinged ears, both ends of the hinged shaft are connected with the fixed base, so that the handle can be rotatably folded and unfolded inside the fixed base around the hinged shaft.

[0012] The utility model has the advantages that:

[0013] 1.The utility model discloses handle design, when operating disc wheel pinion, hand is effectively guided to the safe position far from gear engagement dangerous area, thoroughly eliminates the hand stirring roll, extrusion and other accidental injury hidden danger caused by gear sudden rotation, improper operation and other factors, provides solid barrier for the personal safety of operating personnel;Handle is in normal use state, provides reliable force point for operating personnel, so that accurate, stable force can be applied when disc wheel operation is carried out, avoids the operation error caused by hand nowhere to force or uneven force, further reduces the security risk derived from operation error, ensures that the whole disc wheel process is safe and controllable;

[0014] 2. The handle and mounting base utilize a rotating connection and hinge structure to achieve the folding function, making operation extremely simple. When the handle is not needed, operators can easily fold it around the hinge axis with a simple push or pull of one or both hands, allowing for quick folding and storage close to the gear or mounting base. This significantly saves operation time and labor costs. Whether unfolded or folded, the device does not affect the normal operation, installation, or disassembly of the gear, nor does it hinder the normal operation of other components around the gear. This means that during routine maintenance, repairs, and emergency troubleshooting, staff do not need to spend extra effort adjusting or removing the safety handle device, ensuring the efficient and smooth operation of the wind turbine generator set. Attached Figure Description

[0015] Fig. 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Fig. 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0017] Figs. 1-2 In the middle: 1. Gear; 11. Reserved hole; 2. Handle; 21. Fixing base; 22. Fixing bolt. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] like Figs. 1-2 The foldable safety grip device shown is for turning small gears of wind turbine generator sets. It includes a gear 1 and a handle 2. The gear 1 has a reserved hole 11. The handle 2 is connected to the gear 1 through a fixing seat 21. The fixing seat 21 is fixed to the gear 1 by means of fixing bolts 22 passing through the reserved hole 11. After installation, the handle 2 is in a normal working state and does not affect the normal operation, installation and disassembly of the gear 1. It can also be used by operators to operate the gear 1 and avoids the hands from contacting the dangerous area of ​​gear meshing.

[0020] The handle 2 is rotatably connected to the fixed base 21, making it easy to rotate, fold, and store.

[0021] The handle 2 adopts a foldable design, and folding function is realized through a hinged structure, and when not in use, the handle 2 can be folded and stored, and no additional space is occupied, and the normal operation of other components around the gear 1 is not hindered, and the hinged structure comprises hinged ears arranged on both sides of the folding part of the handle 2 and a hinge shaft penetrating the hinged ears, and the two ends of the hinge shaft are connected with the fixed seat 21, so that the handle 2 can be flexibly rotated in the inner side of the fixed seat 21 to realize folding and unfolding.

[0022] In summary, the utility model has the following working principle:

[0023] Installation stage

[0024] Preparation work:

[0025] The operation personnel first obtain the foldable safety handle device, confirm the completeness of the components, including the gear 1, the handle 2 with the fixed seat 21 and the fixed bolt 22, and check whether the reserved hole 11 on the gear 1 is unobstructed and free of foreign matters.

[0026] Installation and fixation:

[0027] Align the fixed seat 21 with the gear 1, and accurately align the mounting hole on the fixed seat 21 with the reserved hole 11 of the gear 1.

[0028] Pick up the fixed bolt 22, pass through the mounting hole of the fixed seat 21 and the reserved hole 11 of the gear 1 in sequence, and use the corresponding tool such as a wrench to tighten the fixed bolt 22 according to the specified torque, so that the handle 2 is firmly installed on the gear 1 through the fixed seat 21. At this time, the stability of the installation needs to be checked again to prevent loosening.

[0029] Use stage

[0030] Unfolding operation:

[0031] When the disc wheel operation of the wind turbine generator set is needed, the operation personnel come to the equipment, if it is found that the handle 2 is in the folded state, the handle 2 is held by hand near one end of the hinged part, and a proper pulling force is applied outward, so that the handle 2 rotates around the hinge shaft. Since the two ends of the hinge shaft are connected with the fixed seat 21, the handle 2 can be flexibly rotated in the inner side of the fixed seat 21, until the handle 2 is completely unfolded to a position where the operation personnel can comfortably hold, so as to provide a stable force point for subsequent operation.

[0032] Disc wheel operation:

[0033] The operation personnel hold the unfolded handle 2 with both hands, start the disc wheel process according to the standard operation procedure, accurately apply force to the handle 2 to drive the gear 1 to rotate, and then realize the disc wheel operation of the wind turbine generator set. In the whole process, due to the existence of the handle 2, the operation personnel keep a safe distance from the dangerous area of the gear engagement, effectively avoiding the risk of accidental injury, and ensuring the safe and efficient disc wheel operation.

[0034] Accommodation stage

[0035] Folding preparation:

[0036] When the discing operation is completed, the operator stops applying force and prepares to accommodate the handle 2. First, ensure that the gear 1 has stopped rotating and is in a stable state, and check the surrounding environment again for potential hazards to avoid accidents such as collisions during folding.

[0037] Folding operation:

[0038] The operator holds the handle 2 and pushes it towards the gear 1 or the fixed seat 21, causing the handle 2 to rotate in the opposite direction around the hinge shaft, gradually folding the handle 2 up. Since the handle 2 is connected to the fixed seat 21, the operation is convenient, and the handle 2 can be folded smoothly, finally tightly against the gear 1 or the fixed seat 21, completing the accommodation. At this time, the folded device does not occupy additional space and does not hinder the normal operation of other parts around the gear 1, waiting for the next use.

[0039] Through the above rigorous and orderly workflow, the foldable safety handle device can not only ensure the safety of the operator, but also meet the various needs of the discing operation and equipment maintenance of the wind turbine generator.

[0040] 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 these 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 foldable safety grip device for turning gears of wind turbine generator sets, comprising gears (1) and a handle (2), characterized in that: The gear (1) is provided with a reserved hole (11). The handle (2) is connected to the gear (1) through a fixing seat (21). The fixing seat (21) is fixed to the gear (1) by means of a fixing bolt (22) passing through the reserved hole (11). After installation, the handle (2) is in a normal working state, which does not affect the normal operation, installation and disassembly of the gear (1). It can also be held by the operator to operate the gear (1) and avoid the hand from contacting the dangerous area of ​​gear meshing.

2. The foldable safety grip device for the small gear of a wind turbine generator set according to claim 1, characterized in that: The handle (2) is rotatably connected to the fixed base (21), which facilitates rotation, folding and storage.

3. A foldable safety grip device for the turning gear of a wind turbine generator set according to claim 1, characterized in that: The handle (2) adopts a foldable design and achieves the folding function through the hinge structure. When not in use, it can be folded and stored without occupying extra space and without hindering the normal operation of other components around the gear (1). The hinge structure includes hinge ears set on both sides of the folding part of the handle (2) and a hinge shaft passing through the hinge ears. The two ends of the hinge shaft are connected to the fixed seat (21), so that the handle (2) can rotate flexibly around the hinge shaft inside the fixed seat (21) to achieve folding and unfolding.

Images