Wrench capable of improving assembling and disassembling efficiency of wind power gear box

Abstract

The utility model provides a wrench capable of improving the assembly and disassembly efficiency of a wind power gear box, which is characterized in that a tool steel pipe is a hollow steel pipe, and more than two quadrangular heads are fixed in the middle of the outer circumference of the tool steel pipe; the first steel plate and the second steel plate are respectively fixed on two sides of the cross beam to form a U-shaped body; the first tool bolt sequentially penetrates through a through hole formed in the first steel plate, a shaft hole of the tool steel pipe and a through hole formed in the second steel plate, the round nut is installed on a threaded section of the first tool bolt in a screwed mode, and the first steel plate and the second steel plate clamp the tool steel pipe. The wrench force arm is fixedly connected to the cross beam. According to the tool, the safety, the convenience and the working efficiency of the assembly and disassembly work of the wind power gear box are improved.

Description

Technical Field

[0001] The utility model relates to the field of tooling, in particular to a wrench which can improve the efficiency of assembling and disassembling a wind power gear box. Background Art

[0002] Wind power generation has developed rapidly in recent years due to its advantages such as no pollution and low construction cost. The gearbox is a key part of the wind turbine generator set. The assembly efficiency of the gearbox and the efficiency of disassembly and installation during the maintenance process are crucial. The components of the gearbox are mainly composed of large components such as the housing, gear parts, torque arms, planetary carriers, and various small structural parts and steel parts. There are dozens of specifications of standard bolts used in wind power gearboxes, so different types of wrenches are needed when disassembling or assembling the gearbox. The new gearbox is better when assembled. The assemblers can use different types of wrenches at any time according to the different specifications of bolts used on various parts of the wind power gearbox. However, there are many parts on the wind power gearbox, and the bolt types used are also varied. In order to complete the maintenance requirements during aerial maintenance, it is necessary to remove small parts such as the cover plate and the sight hole cover of the gearbox, so it is necessary to carry several different specifications of wrenches to complete the task. Carrying too many tools will bring a lot of inconvenience to the maintenance personnel, and the heavy weight of the tools also increases the danger of the maintenance personnel. To disassemble different bolts, you need to switch wrenches back and forth. The space in the wind turbine gearbox cabin is relatively narrow, and sometimes the cabin and the wrench interfere with each other, resulting in low work efficiency. Utility Model Content

[0003] The utility model provides a wrench capable of improving the efficiency of assembling and disassembling a wind turbine gear box, and aims to solve the shortcomings of the prior art and improve the safety, convenience and work efficiency of assembling and disassembling the wind turbine gear box.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A wrench capable of improving the efficiency of assembling and disassembling a wind turbine gearbox, characterized in that:

[0006] The tooling steel pipe is a hollow steel pipe, and more than two square heads are fixed in the middle of the outer circumference of the tooling steel pipe;

[0007] The first steel plate and the second steel plate are respectively fixed on both sides of the crossbeam to form a U-shaped body;

[0008] The first tooling bolt passes through the through hole opened on the first steel plate, the axial hole of the tooling steel pipe, and the through hole opened on the second steel plate in sequence, and the round nut is screwed onto the threaded section of the first tooling bolt, and the first steel plate and the second steel plate clamp the tooling steel pipe;

[0009] The wrench arm is fixedly connected to the crossbeam.

[0010] The widths of the crossbeam, the first steel plate and the second steel plate are the same.

[0011] Two square heads are fixed at the middle part of the outer circumference of the tooling steel pipe, and the two square heads are symmetrically distributed relative to the axis of the tooling steel pipe.

[0012] The second tooling bolt passes through the through hole above the wrench force arm, and the round nut is screwed and tightened on the threaded section on one side of the second tooling bolt.

[0013] The utility model is beneficial in that:

[0014] 1. Simple structure, easy to process and manufacture;

[0015] 2. It has strong versatility and can be applied to the use of bolts within a certain range. To remove and install bolts within a certain range, maintenance personnel only need to carry a wrench of the utility model, which reduces the carrying of tools and is more convenient and safer.

[0016] 3. This tool can adjust the angle of the wrench arm according to the internal structure of the cabin to prevent the wrench from interfering with the cabin during use, making it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 for Figure 1 A partial view of the vehicle. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solution of the utility model, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without creative work. In order to facilitate the understanding of the utility model, the following will be combined with the drawings and specific embodiments to explain the utility model in more detail.

[0021] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more centered elements can exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more centered elements can exist between them. The terms "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] like Figure 1 , Figure 2 As shown:

[0023] The tooling steel pipe 1 is a hollow steel pipe, and the first square head 2 is welded to the middle part of the outer circumference of the tooling steel pipe 1 by welding, and the second square head 3 is also welded to the middle part of the outer circumference of the tooling steel pipe 1 by welding. The first square head 2 and the second square head 3 are distributed at 180° in the circumferential direction of the tooling steel pipe 1, that is, the first square head 2 and the second square head 3 are symmetrically distributed relative to the axis of the tooling steel pipe 1. The square head is a component of a wrench. Usually, when turning a bolt, the bolt sleeve is first installed on the square head, and then the bolt sleeve is installed on the nut of the hexagonal bolt, so that the wrench can be turned to drive the bolt sleeve to rotate and realize the rotation of the bolt. Since the nut sizes of bolts of different specifications are different, the sizes of the bolt sleeves to be used are also different, but the bolt sleeves within a certain specification size range can share the same square head. Therefore, this patent can achieve the tightening and loosening of bolts within a certain range by switching to use two square heads of different specifications.

[0024] The modules composed of the first steel plate 5, the second steel plate 6 and the cross beam 7 are connected to each other by welding to form a U-shaped body, and the first steel plate 5 and the second steel plate 6 are respectively welded and fixed on both sides of the cross beam 7. The widths of the cross beam 7, the first steel plate 5 and the second steel plate 6 are consistent, so that the force can be more evenly applied.

[0025] A through hole is opened in advance at the center of the first steel plate 5 and the second steel plate 6 respectively, and the first tooling bolt 8 is passed through the through hole on the first steel plate 5, the axial hole of the tooling steel pipe 1, and the through hole on the second steel plate 6 in sequence, and then the round nut 9 is screwed onto the threaded section of the first tooling bolt 8. The first steel plate 5 and the second steel plate 6 are controlled to clamp the tooling steel pipe 1 by tightening the round nut 9, so that the tooling steel pipe 1 will not rotate during the use of the wrench of this utility model, thereby preventing the first square head 2 and the second square head 3, and thus the bolt sleeve 4 installed on the first square head 2 or the second square head 3 will not rotate.

[0026] The wrench arm 10 is fixedly connected to the crossbeam 7 by welding. A through hole is opened in advance on the top of the wrench arm 10. The second tooling bolt 11 passes through the through hole on the top of the wrench arm 10, and then the round nut 12 is screwed and tightened on the threaded section on one side of the second tooling bolt 11. The assembly composed of the second tooling bolt 11 and the round nut 12 is to prevent the wrench arm 10 from interfering with the construction on the cabin and can only be placed at a vertical angle. In this way, it is difficult for maintenance personnel to achieve the bolt with a certain torque by only turning the wrench arm 10. Therefore, when encountering this situation, the second tooling bolt 11 passing through the wrench arm 10 can be turned, thereby achieving a labor-saving effect. The round nut 12 can support the wrench arm 10 when in use to prevent the second tooling bolt 11 from falling off.

[0027] In actual use:

[0028] According to the nut size of bolts of different specifications, the bolt sleeve 4 is selected, and the bolt sleeve 4 is rotated to correspond to the first square head 2 or the second square head 3, and the round nut 9 is loosened. The tooling steel pipe 1 in the first steel plate 5 and the second steel plate 6 is loosened and can be rotated. The required first square head 2 or second square head 3 is turned downward, and then the round nut 9 is tightened to control the first steel plate 5 and the second steel plate 6 to clamp the tooling steel pipe 1. The bolt sleeve 4 is inserted into the first square head 2 or the second square head 3, and the bolt sleeve 4 is installed on the nut of the hexagonal bolt of the wind power gearbox. In this way, the wrench arm 10 or the second tooling bolt 11 can be turned to drive the bolt sleeve 4 to rotate, thereby realizing the wrench work.

[0029] The advantages of the utility model are:

[0030] 1) There is no need to switch wrenches back and forth when disassembling bolts of different specifications. Only the wrench in the utility model is needed to realize the disassembly requirements of bolts within a certain specification range, which effectively reduces the carrying of tools.

[0031] 2) The angle of the wrench arm in the utility model can be adjusted. The angle of the wrench arm can be adjusted arbitrarily in view of the narrow position of the cabin to avoid interference with the cabin or other parts.

[0032] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A wrench that can improve the efficiency of wind turbine gearbox assembly and disassembly, characterized by: The tooling steel pipe is a hollow steel pipe, and more than two four-corner heads are fixed in the middle part of the outer circumference of the tooling steel pipe; the first steel plate and the second steel plate are respectively fixed on both sides of the beam to form a U-shaped body; the first tooling bolt passes through the through hole opened on the first steel plate, the axial hole of the tooling steel pipe, and the through hole opened on the second steel plate in sequence, and the round nut is screwed onto the threaded section of the first tooling bolt, and the first steel plate and the second steel plate clamp the tooling steel pipe; the wrench arm is fixedly connected to the beam.

2. A wrench capable of improving the efficiency of wind turbine gearbox assembly and disassembly as claimed in claim 1, characterized in that: The widths of the crossbeam, the first steel plate and the second steel plate are the same.

3. A wrench capable of improving the efficiency of assembling and disassembling a wind turbine gearbox as claimed in claim 1, characterized in that: Two square heads are fixed at the middle part of the outer circumference of the tooling steel pipe, and the two square heads are symmetrically distributed relative to the axis of the tooling steel pipe.

4. A wrench capable of improving the efficiency of assembling and disassembling a wind turbine gearbox as claimed in claim 1, characterized in that: The second tooling bolt passes through the through hole above the wrench force arm, and the round nut is screwed and tightened on the threaded section on one side of the second tooling bolt.

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