CN211681813U - Open spanner forcing rod - Google Patents

Abstract

The utility model relates to a machinery overhauls accessory field, discloses an opening spanner application of force pole, and it includes the action bars, the action bars front end is equipped with the fixed part, the fixed part be equipped with the breach of spanner opening side looks adaptation, fixed part and opening side interference fit, the action bars with the contained angle of breach opening direction is obtuse angle an. The utility model discloses a power application pole constitutes integrative back with spanner opening side and power application pole fixed part assembly, is certain obtuse angle between the whole and the opening spanner of power application pole, like this, has both increaseed the arm of force, has helped reducing workman's intensity of labour, has enlarged workman's operation activity space again, helps improving the maintenance change efficiency of accessory, especially is applied to the change of rotor damping ring pull rod in the generating set, helps saving the time limit for a project, reduces the cost of labor, improves the power generation benefit.

Description

Open spanner forcing rod

Technical Field

The utility model relates to a machinery overhauls the accessory field, especially relates to an open spanner reinforcing bar.

Background

Due to design reasons, the original damping ring pull rod structure of a certain generator set has the hidden trouble of looseness, and an original damping ring pull rod hole needs to be reamed to M24 to install a new structure pull rod. In order to realize the broaching and tapping of the damping ring pull rod hole in a narrow space range under the conditions of not lifting out the rotor and not pulling out the magnetic pole, a set of tapping tool is redesigned by technicians. However, in the actual implementation process, the following problems still exist:

1. the difficulty in disassembling the pull rod M20 nut of the original damping ring is as follows: the upper part and the lower part of each damping ring pull rod are 28, and the damping ring pull rods are respectively positioned at the 1 st section and the 9 th section of the thick plate magnet yoke, so that the nuts can be screwed down only by using a conventional open spanner or pipe wrench which cannot be operated or needs to be operated for many times due to the limitation of space in the wind tunnel; if the nut is coated with more locking glue during installation, the disassembly difficulty is higher.

2. Ream the M20 damping ring tie rod hole to M24 and redo the threading difficulties: the tapping is carried out in a narrow space, and although the working strength can be reduced by adopting the ratchet wrench, the problems of small arm of force and insufficient rotating space still exist.

When the existing force applying rod is used, most of the force applying rod and a wrench are in the same straight line, and the force applying rod only plays a role in increasing the force arm. Therefore, it is necessary to design a force-applying rod for an open-end wrench to solve the problem of difficulty in tightening and loosening bolts, nuts, etc. in a narrow space and the problem of difficulty in reaming and tapping in a narrow space.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome above-mentioned prior art's defect and not enough, provide an open spanner application of force pole, this application of force pole and open spanner assembly back are the obtuse angle between the two, have both increaseed the arm of force, have enlarged workman's operation activity space again.

The utility model discloses above-mentioned purpose is realized through following technical scheme:

the utility model provides an open end spanner application of force pole, includes the action bars, the action bars front end is equipped with the fixed part, the fixed part be equipped with the spanner opening side breach of looks adaptation, fixed part and opening side interference fit, the action bars with the contained angle of breach opening direction is obtuse angle a. Among this technical scheme, with spanner opening side and the integrative back of stress application pole fixed part assembly constitution, be certain obtuse angle between stress application pole whole and the opening spanner is whole, like this, both increaseed the arm of force, help reducing workman's intensity of labour, workman's operation activity space has been enlarged again, help improving the maintenance replacement efficiency of accessory, especially be applied to the change of rotor damping ring pull rod among the generating set, can not hang out the rotor, under the condition of not extracting the magnetic pole, realize damping ring pull rod hole reaming, the tapping in narrow and small space range, the time limit for a project has been saved, the labor cost is reduced, the power generation benefit has been improved greatly.

Preferably, the obtuse angle a satisfies: 120 degrees < a <160 degrees, thus effectively ensuring the two effects of 'increasing the moment arm' and 'enlarging the operation activity space of workers'.

Preferably, the thicknesses of the opening side of the wrench and the fixing part are d, and d is more than or equal to 10 mm. The contact surface between the opening side and the fixing part is large enough due to certain thickness, so that the stable assembly of the force applying rod and the open spanner in the operation process is ensured.

Preferably, the tail end of the operating rod is provided with a handle part, and the handle part is sleeved with a rubber sleeve, so that slipping in the operating process is avoided.

Preferably, the stress application rod is made of 304 stainless steel, has high hardness and high toughness, and is suitable for various professional industrial maintenance.

Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:

the utility model has simple structure, practical function, simple manufacture, low cost and convenient and fast use, reduces the labor intensity and improves the working efficiency; the labor-saving disassembly or tightening of nuts, bolts and the like in a narrow space can be realized; the device is suitable for the tightening operation of a nut of a generator set accessory, and realizes labor-saving disassembly, hole expansion and tapping of a damping ring pull rod hole back cap in a narrow space on the premise of not lifting a rotor and not pulling out a magnetic pole; the device is also suitable for replacing the screw cap and the flange under the condition that the space is limited and the force arm needs to be increased in the conventional mechanical maintenance process.

Drawings

FIG. 1 is a schematic view of an open-end wrench with a force-applying rod according to the present invention;

FIG. 2 is a top view of the open-end wrench and the force-applying rod of the present invention;

FIG. 3 is a rear view of the force application rod of the present invention;

in the figure: the opening wrench comprises an opening wrench 1, a forcing rod 2, a fixing part 3, an opening side 4, a gap 5 and a rubber sleeve 6;

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent;

for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;

it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, the open-end wrench 1 in this embodiment is: a dual-purpose wrench with one end identical to a single-end solid wrench and the other end identical to a ring spanner, or other ratchet wrenches with an open side 4. The application of force pole 2 includes the action bars, the action bars front end is equipped with fixed part 3, fixed part 3 is equipped with the breach 5 with the 4 looks adaptations of spanner opening side, fixed part 3 and 4 interference fit of opening side, the action bars with the contained angle of 5 opening directions in breach is obtuse angle an. In order to effectively ensure that the two effects of increasing the force arm and expanding the operation activity space of workers have the same function, the obtuse angle a meets the following requirements: 120 ° < a <160 °, in the present embodiment, 120 ° is preferable.

As shown in FIG. 3, the thickness of the wrench opening side 4 and the fixing portion 3 are d, and d is greater than or equal to 10mm, preferably 12mm in the present embodiment. Certain thickness makes the contact surface of opening side 4 and fixed part 3 big enough, can ensure the stability of the rotatory in-process application of force pole 2 of application of force pole drive spanner and the assembly of open end spanner 1.

Specifically, the wrench opening side 4 and the force applying rod fixing portion 3 are assembled into a whole, that is: the assembly is completed by bringing the section of the open side 4 in relative translational proximity to the section of the fixed part 3, in alignment with the notch 5, and by inserting the open side 4 into the notch 5. At the moment, a certain obtuse angle is formed between the whole force applying rod 2 and the whole open-end wrench 1, so that the force arm is increased, the labor intensity of workers is reduced, the operation activity space of the workers is enlarged, and the repair and replacement efficiency of accessories is improved. When the wrench is used, the other end of the wrench is fixed to a component to be disassembled, and the force applying rod is operated to drive the wrench to rotate, so that the nut and other components are disassembled or tightened in a labor-saving manner. The stress application rod is used for replacing the damping ring pull rod of the rotor in the generator set, and can realize quick reaming and tapping of a plurality of damping ring pull rod holes in a narrow wind tunnel space under the conditions of not hanging out the rotor and not pulling out the magnetic pole, so that the construction period is saved, the labor cost is reduced, and the power generation benefit is greatly improved.

In a further embodiment, the operating rod is provided with a handle part at the end, and the handle part is sleeved with a rubber sleeve 6 to help avoid slipping during operation. The reinforcing rod is made of 304 stainless steel preferably, has high hardness and high toughness, is suitable for various large-scale industrial maintenance scenes, and has a wide popularization prospect.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (5)

1. The utility model provides an open end spanner application of force pole, includes the action bars, its characterized in that, the action bars front end is equipped with the fixed part, the fixed part be equipped with the spanner opening side breach of looks adaptation, fixed part and opening side interference fit, the action bars with the contained angle of breach opening direction is obtuse angle an.

2. The open wrench lever of claim 1, wherein the obtuse angle a satisfies: 120 < a < 160.

3. The open wrench force-applying rod as claimed in claim 1, wherein the thickness of the wrench opening side and the fixing portion is d, and d is greater than or equal to 10 mm.

4. The open-end wrench force-applying rod as claimed in claim 1, wherein the operating rod is provided at its distal end with a grip portion, and the grip portion is covered with a rubber sleeve.

5. The open wrench force bar of claim 1, wherein the force bar material is 304 stainless steel.

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