CN214870131U - Generator tip bolt-up multiplexer utensil - Google Patents

Abstract

The utility model discloses a generator tip bolt-up multiplexer utensil, this generator tip bolt-up multiplexer utensil include sleeve and handle, and the sleeve is provided with the centre bore, is provided with the holding tank on the telescopic terminal surface, holding tank and centre bore intercommunication, handle and sleeve can dismantle and be connected. When the muffjoint was located with generator tip bolt complex lock nut, the holding tank can hold the part of the outstanding nut of monaural lock washer on the bolt, make telescopic terminal surface and the terminal surface of motor paste tightly, the motor terminal surface can the supporting sleeve, thereby make when rotating the sleeve, the cooperation of sleeve and nut is difficult not hard up, can conveniently fasten the bolt of motor tip, and labour saving and time saving, easy operation is reliable, the handle can be dismantled with the sleeve and be connected, can conveniently change not unidimensional sleeve, so that this generator tip bolt-up multiplexer utensil is applicable to not unidimensional nut.

Description

Generator tip bolt-up multiplexer utensil

Technical Field

The utility model relates to a fastening multiplexer utensil technical field especially relates to a generator tip bolt-up multiplexer utensil.

Background

When the generator normally operates, the end part of the stator winding is in continuous vibration, and the main source of the vibration is double-frequency alternating electromagnetic force. Due to the structural characteristics of the end portions of the stator winding of the generator similar to cantilever beams, especially the end portions of the stator wire rods of the turbonator are extended long, so that the prevention of excessive vibration or other hazards caused by the excessive vibration is a problem which is always concerned by the technical personnel in the field. A large number of generator accident statistical analyses show that long-term vibration can cause the end fastening structure of a generator stator winding to be loosened, further cause insulation abrasion of a coil bar, and seriously cause end interphase short circuit accidents. The electromagnetic force that causes the vibration is directly proportional with the square of generator stator current, along with the increase of generator unit capacity, stator winding tip vibration problem is more outstanding, consequently, need regularly fasten the moment of the insulating clamp plate bolt of generator steam excitation both sides tip, however, the bolt of AP1000 generator tip earlier with the cooperation of monaural lock washer before with the nut cooperation, the nut can be outstanding to a part of monaural lock washer, when fastening the bolt with the apparatus, the apparatus cover is on the nut, because the part of the outstanding nut of monaural lock washer is the butt apparatus earlier, make the terminal surface of apparatus hug closely with the motor terminal surface, thereby make the cooperation of apparatus and nut unstable, influence fastening effect and waste time and energy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a generator tip bolt-up multiplexer utensil to when the bolt of solving the generator tip cooperates with monaural lock washer earlier before with the nut, multiplexer utensil's terminal surface can't be hugged closely with the motor terminal surface, thereby makes multiplexer utensil and nut's cooperation unstable, influences the fastening effect and the problem that wastes time and energy.

To achieve the purpose, the utility model adopts the following technical proposal:

a generator end bolt fastening tool comprising:

the sleeve is provided with a central hole, and the end face of the sleeve is provided with an accommodating groove which is communicated with the central hole;

the handle is detachably connected with the sleeve.

Preferably, the number of the accommodating grooves is plural, and the plural accommodating grooves are arranged at intervals in the circumferential direction of the central hole.

Preferably, the sleeve and the handle are connected by a bolt.

Preferably, the sleeve is provided with a first connecting portion, the handle is provided with two second connecting portions at intervals, the first connecting portion is arranged between the two second connecting portions, and the bolt is sequentially screwed with one of the second connecting portions, the first connecting portion and the other second connecting portion.

Preferably, the handle also comprises an extension bar, and the extension bar is detachably connected with the handle.

Preferably, the extension bar is provided with external threads, the handle is provided with internal threads, the external threads are in threaded connection with the internal threads, and the extension bar can stretch into or stretch out of the handle.

Preferably, the handle and the sleeve are arranged at an included angle.

Preferably, the sleeve includes a first portion and a second portion fixedly connected to the first portion, an outer diameter of the second portion is smaller than an outer diameter of the first portion, the central hole penetrates through the first portion and the second portion, the handle is connected to the first portion, the accommodating groove is disposed in the second portion, and the accommodating groove penetrates through a hole wall of the central hole.

Preferably, the sleeve and the handle are made of a stainless steel material.

Preferably, the central hole has an octagonal shape.

The utility model has the advantages that: the utility model provides a generator tip bolt-up multiplexer utensil, this generator tip bolt-up multiplexer utensil include sleeve and handle, and the sleeve is provided with the centre bore, is provided with the holding tank on the telescopic terminal surface, holding tank and centre bore intercommunication, handle and sleeve can dismantle and be connected. When the tool is fastened by using the bolt at the end part of the generator, the bolt at the end part of the generator is fixed by using a preset torque wrench, then the sleeve of the tool for fastening the bolt at the end part of the generator is sleeved on the nut matched with the bolt at the end part of the generator, and the part of the lug locking washer protruding out of the nut is ensured to be positioned in the accommodating groove, then the handle is held by hand to rotate so as to lock and fix the bolt at the end part of the generator, when the sleeve is sleeved on the locking nut matched with the bolt at the end part of the generator, the accommodating groove can accommodate the part of the lug locking washer protruding out of the nut on the bolt, so that the end surface of the sleeve is tightly attached to the end surface of the motor, and the end surface of the motor can support the sleeve, so that when the sleeve is rotated, the matching of the sleeve and the nut is not easy to loosen, the bolt at the end part of the motor can be conveniently fastened, time and labor are saved, the operation is simple and reliable, and the insulating pressing plate is prevented from being damaged due to overlarge torque in the fastening process, or the fastening torque is too small, so that the insulating pressing plate is loosened, and the generator is in failure. The handle and the sleeve are detachably connected, and the sleeves with different sizes can be conveniently replaced, so that the bolt fastening tool at the end part of the generator is suitable for nuts with different sizes.

Drawings

Fig. 1 is a schematic structural view of a generator end bolt fastening tool according to an embodiment of the present invention along a first viewing angle;

fig. 2 is a schematic structural view of a generator end bolt fastening tool provided in an embodiment of the present invention along a second viewing angle.

In the figure:

11. a first part; 12. a second section; 121. accommodating grooves; 13. a first connection portion;

2. a handle; 21. a second connecting portion;

3. and (5) lengthening the rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 and 2, the generator end bolt fastening tool comprises a sleeve and a handle 2, wherein the sleeve is provided with a central hole, an accommodating groove 121 is formed in the end face of the sleeve, the accommodating groove 121 is communicated with the central hole, and the handle 2 is detachably connected with the sleeve. When the tool is fastened by using the bolt at the end part of the generator, a preset torque wrench is used for fixing the bolt at the end part of the generator, then the sleeve of the tool for fastening the bolt at the end part of the generator is sleeved on the nut matched with the bolt at the end part of the generator, and the part of the monaural locking washer protruding out of the nut is ensured to be positioned in the accommodating groove 121, then the handle 2 is held by hand to rotate so as to lock and fix the bolt at the end part of the generator, when the sleeve is sleeved on the nut matched with the bolt at the end part of the generator, the accommodating groove 121 can accommodate the part of the monaural locking washer protruding out of the nut on the bolt, so that the end surface of the sleeve is tightly attached to the end surface of the motor, the end surface of the motor can support the sleeve, therefore, when the sleeve is rotated, the fit between the sleeve and the nut is not easy to loosen, the bolt at the end part of the motor can be conveniently fastened, time and labor are saved, the operation is simple and reliable, and the insulating pressing plate is prevented from being damaged due to overlarge torque in the fastening process, or the fastening torque is too small, so that the insulating pressing plate is loosened, and the generator is in failure. The handle 2 is detachably connected with the sleeve, and the sleeves with different sizes can be conveniently replaced, so that the bolt fastening tool at the end part of the generator is suitable for nuts with different sizes.

Preferably, the number of the receiving grooves 121 is plural, and the plural receiving grooves 121 are provided at intervals in the circumferential direction of the center hole. Set up a plurality of holding tanks 121, can conveniently adjust the position of this generator tip bolt-up multiplexer utensil to make and fasten the bolt to the generator tip under a good handheld environment, be provided with two holding tanks 121 in this embodiment, the shape of holding tank 121 is the rectangle.

Preferably, the sleeve and the handle 2 are connected by a bolt. Simple structure and convenience are installed and are dismantled sleeve and handle 2.

Preferably, the sleeve is provided with a first connecting portion 13, the handle 2 is provided with two second connecting portions 21 at intervals, the first connecting portion 13 is arranged between the two second connecting portions 21, and the bolt is sequentially screwed with one of the second connecting portions 21, the first connecting portion 13 and the other second connecting portion 21. Set up first connecting portion 13 between two second connecting portion 21, the both ends of first connecting portion 13 respectively with two second connecting portion 21 butts, two second connecting portion 21 can carry on spacingly to first connecting portion 13, can make sleeve and handle 2 be connected more firmly.

Optionally, the handle also comprises an extension bar 3, and the extension bar 3 is detachably connected with the handle 2. The handle 2 is provided with the extension bar 3, so that the nut can be rotated more easily.

Preferably, extension bar 3 is provided with the external screw thread, and handle 2 is provided with the internal thread, external screw thread and internal thread spiro union, and extension bar 3 can stretch into or stretch out handle 2. The distance between the extension bar 3 and the handle 2 is the distance that the extension bar 3 extends into the handle 2, and the distance between the extension bar 3 and the handle 2 is controlled to adjust the distance that the extension bar 3 is exposed out of the handle 2 properly, so that the handle is convenient to use.

Preferably, the handle 2 is arranged at an angle to the sleeve. Set up handle 2 and sleeve and be the contained angle setting, can avoid handle 2 and bolt surrounding parts to interfere for this generator tip bolt-up multiplexer utensil's use is convenient easy more, and in this embodiment, handle 2 is 5 contained angles with telescopic terminal surface.

Preferably, the sleeve comprises a first portion 11 and a second portion 12 fixedly connected with the first portion 11, the outer diameter of the second portion 12 is smaller than the outer diameter of the first portion 11, a central hole penetrates through the first portion 11 and the second portion 12, the handle 2 is connected with the first portion 11, the accommodating groove 121 is arranged on the second portion 12, and the accommodating groove 121 penetrates through the hole wall of the central hole. The handle 2 is connected with the first part 11 to enable the handle 2 to be stably connected with the sleeve, the accommodating groove 121 of the second part 12 penetrates through the hole wall of the central hole, and the part of the single lug lock washer protruding out of the nut can extend out of the second part 12, so that the accommodating groove 121 is not affected by the length of the part of the single lug lock washer protruding out of the nut.

Preferably, the sleeve and the handle 2 are made of stainless steel material. The sleeve and the handle 2 can have sufficient strength and rigidity by adopting the stainless steel material.

Preferably, the central hole is octagonal in shape. In other embodiments, the central aperture may be hexagonal in shape.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A generator end bolt fastening tool, comprising:

the sleeve is provided with a central hole, an accommodating groove (121) is formed in the end face of the sleeve, and the accommodating groove (121) is communicated with the central hole;

the handle (2), handle (2) with the sleeve can be dismantled and be connected.

2. The generator end bolt fastening tool according to claim 1, wherein the number of the receiving grooves (121) is plural, and the plural receiving grooves (121) are provided at intervals in a circumferential direction of the center hole.

3. Generator end bolting tool according to claim 1, characterised in that said sleeve and said handle (2) are bolted.

4. The generator end bolt fastening tool according to claim 3, wherein the sleeve is provided with a first connecting portion (13), the handle (2) is provided with two second connecting portions (21) at intervals, the first connecting portion (13) is arranged between the two second connecting portions (21), and the bolt is screwed with one of the second connecting portions (21), the first connecting portion (13) and the other second connecting portion (21) in sequence.

5. The generator end bolt fastening tool according to claim 1, further comprising an extension bar (3), the extension bar (3) being detachably connected with the handle (2).

6. Generator end bolt fastening tool according to claim 5, wherein the extension bar (3) is provided with an external thread, the handle (2) is provided with an internal thread, the external thread and the internal thread are in screw connection, and the extension bar (3) can be extended into or out of the handle (2).

7. Generator end bolt fastening tool according to any of claims 1-6, wherein the handle (2) is arranged at an angle to the sleeve.

8. Generator end bolting tool according to any of the claims 1-6, wherein said sleeve comprises a first part (11) and a second part (12) fixedly connected to said first part (11), said second part (12) having an outer diameter smaller than the outer diameter of said first part (11), said central hole extending through said first and second parts (11, 12), said handle (2) being connected to said first part (11), said receiving groove (121) being provided in said second part (12), and said receiving groove (121) extending through the wall of said central hole.

9. Generator end bolt fastening tool according to any of claims 1-6, wherein the sleeve and the handle (2) are made of stainless steel material.

10. Generator end bolt fastening tool according to any of claims 1-6, wherein the central hole is octagonal in shape.

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