CN221020844U - Nut dismantling device for screw - Google Patents

Abstract

The utility model relates to the technical field of dismounting tools for hydroelectric generating set equipment, in particular to a nut dismounting device for a screw, which comprises a bracket body and two rotating parts arranged on the bracket body, wherein the two rotating parts are respectively connected to two sides of the bracket body in a rotating way, the rotating parts are provided with embedded parts, the embedded parts are used for being in full-surrounding fit connection with a disc valve nut or a rotating tool, and the two rotating parts are in meshed connection and are used for enabling the two rotating parts to synchronously rotate. One of the rotating parts is sleeved on the disc-type valve nut through the embedded part, the fixation of the first pair is realized, the other rotating part can be inserted with a corresponding rotating tool through the embedded part, the other rotating part rotates along with the drive of the one rotating part, and then the disc-type valve nut is driven to start rotating.

Description

Nut dismantling device for screw

Technical Field

The utility model relates to the technical field of dismounting tools for hydroelectric generating set equipment, in particular to a nut dismounting device for a screw.

Background

When the hydropower station unit is overhauled, an oil pump trolley is usually adopted to operate a drain pan type valve to drain accumulated water in a volute and a draft tube of the unit to an intermediate gallery, and then the accumulated water is drained by a water pump. In order to prevent the valve core from sinking under the action of gravity, the disc valve is provided with a limit screw and a limit nut for fixing, and after the disc valve acts, the two limit nuts are required to be moved to corresponding positions, and the full stroke can reach 300mm.

The invention patent with publication number CN111922963A discloses a large-sized nut rapid rotating device, and the working principle is as follows: the operator holds the hand holding part 5, then sleeves the other end of the flexible toothed belt 4 on the nut to be screwed, tightens the flexible toothed belt 4, turns on the control switch 1, and drives the motor gear to rotate by the driving motor 7 so as to drive the flexible gear belt to rotate, thereby transmitting torque to the nut and enabling the nut to rotate so as to achieve the purpose of fast screwing the nut; the steering of the drive motor 7 can be controlled by the switch, so that the screwing-in and the screwing-out of the nut are realized.

However, in this working scenario, in order to ensure lubrication and rust prevention between the screw and the nut, a large amount of lubricating oil is coated on the whole screw and the bolt, and when the above-mentioned existing equipment is used for working, the flexible toothed belt is utilized to rotate the bolt, so that the bolt can slip due to the lubricating oil, and the effective rotation cannot be performed.

Disclosure of utility model

The utility model aims to provide a nut removing device for a screw rod, which solves the problem that slipping easily occurs in the prior art.

The embodiment of the utility model is realized by the following technical scheme:

The utility model provides a nut demolishs device for screw rod, includes support body and sets up two rotating parts on the support body, two rotating parts rotate respectively connect in the both sides of support body, be provided with the gomphosis portion on the rotating part, the gomphosis portion is used for with disk valve nut or the full laminating of revolving tool is connected, two the meshing is connected between the rotating part for make two rotating parts synchronous rotation.

The structure of the utility model mainly comprises a bracket body and two rotating parts arranged on the bracket body, wherein the rotating parts are provided with embedded parts which are used for being fully and annularly adhered and connected with a disc-type valve nut or a rotating tool, and the two rotating parts are in meshed connection. When the rotary valve is used, one rotary part is sleeved on the disc valve nut through the embedded part, the fixation of the first pair is realized, the other rotary part can be inserted with a corresponding rotary tool through the embedded part, the rotary tool can be electric or manual, the purpose is that the rotary part connected with the rotary tool can continue to rotate, the other rotary part rotates along with the rotary part under the drive of one rotary part under the meshing connection, and then the disc valve nut is driven to start to rotate, and the rotary tool is gradually taken out from the screw. Through this structure, can realize taking off the nut from the screw rod, simultaneously owing to the existence of gomphosis portion, reduced by a wide margin when rotatory with the nut between the possibility of skidding to carry out effectual rotation.

In an embodiment of the utility model, the two rotating parts are symmetrically arranged at two sides of the bracket body in a mutually perpendicular manner, the rotating parts comprise a connecting part and a bevel gear, and the bevel gear is rotationally connected to the bracket body through the connecting part.

In an embodiment of the utility model, the connecting part comprises a connecting cylinder and a bearing, the connecting cylinder is connected to the bottom of the bevel gear, the bracket body is provided with a corresponding through hole, and the connecting cylinder is rotationally connected in the through hole through the bearing.

In an embodiment of the utility model, a semicircular connecting hoop is arranged at the through hole, threaded holes are formed in the bracket body and the semicircular connecting hoop, the bracket body and the semicircular connecting hoop are connected through bolts and threads, and the semicircular connecting hoop and one side of the bracket body enclose the through hole.

In an embodiment of the utility model, the engaging portion is a hexagon socket and is disposed in the middle of the bevel gear.

In an embodiment of the present utility model, a plurality of through grooves are disposed on the inner side of the inner hexagonal hole, and protruding blocks are disposed in the through grooves.

In an embodiment of the utility model, a hand-held grab handle is arranged on one side of the bracket body.

In one embodiment of the utility model, the bottom of one of the bevel gears is provided with a rotating handle.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

The structure of the utility model mainly comprises a bracket body and two rotating parts arranged on the bracket body, wherein the rotating parts are provided with embedded parts which are used for being fully and annularly adhered and connected with a disc-type valve nut or a rotating tool, and the two rotating parts are in meshed connection. Under the drive of one rotating part, the other rotating part rotates along with the rotating part under the meshing connection, so that the disc valve nut is driven to start to rotate, and the disc valve nut is gradually taken out from the screw rod. Through this structure, can realize taking off the nut from the screw rod, simultaneously owing to the existence of gomphosis portion, reduced by a wide margin when rotatory with the nut between the possibility of skidding to carry out effectual rotation, very big improvement operating efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic rear view of the present utility model;

FIG. 3 is a schematic view of the structure of the present utility model during operation;

Fig. 4 is a schematic view showing the connection of the bevel gear and the bracket body according to the present utility model.

Icon: the device comprises a 1-bevel gear, a 2-semicircle connecting hoop, a 3-bracket body, a 4-disc valve nut, a 5-hand-held grab handle, a 6-rotary handle, a 7-connecting cylinder and an 8-bearing.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Referring to fig. 1-4, the nut removing device for a screw provided by the utility model comprises a bracket body 3 and two rotating parts arranged on the bracket body 3, wherein the two rotating parts have the same structure, the bracket body 3 is integrally an L-shaped bracket structure with two symmetrical sides, two sides are rectangular plate structures, and the middle parts of the two rectangular plates are fixedly connected.

The rotating part is respectively connected to two sides of the bracket body 3 in a rotating way, the rotating part is provided with a jogged part, the jogged part is used for being connected with the disc-type valve nut 4 or the rotating tool in a full-surrounding laminating way, the shape of the jogged part can be consistent with the outer contour of the nut, in order to be matched with the nut better, in the embodiment, the jogged part can be an inner hexagonal hole, is arranged in the middle of the bevel gear 1, and is tightly laminated with the hexagonal nut, so that slipping can not occur during operation.

The two rotating parts are connected in a meshed manner and are used for synchronously rotating.

The structure of the utility model mainly comprises a bracket body 3 and two rotating parts arranged on the bracket body 3, wherein the rotating parts are provided with jogging parts which are used for being fully and annularly jointed with a disc-type valve nut 4 or a rotating tool, and the two rotating parts are in meshed connection. When the rotary valve is used, one rotary part is sleeved on the disc valve nut 4 through the embedded part, the fixation of the first pair is realized, the other rotary part can be inserted with a corresponding rotary tool through the embedded part, the rotary tool can be electric or manual, the purpose is that the rotary part connected with the rotary tool can continue to rotate, and under the driving of one rotary part, the other rotary part rotates along with the rotation under the meshing connection, and then drives the disc valve nut 4 to start rotating and gradually take out from the screw rod. Through this structure, can realize taking off the nut from the screw rod, simultaneously owing to the existence of gomphosis portion, reduced by a wide margin when rotatory with the nut between the possibility of skidding to carry out effectual rotation.

In this embodiment, two rotating parts are symmetrically arranged on two sides of the bracket body 3 in a mutually perpendicular manner, the rotating parts comprise a connecting part and a bevel gear 1, wherein the bevel gear 1 is a straight bevel gear 1 adopted by the bevel gear 1, the bevel gear 1 is rotationally connected to the bracket body 3 through the connecting part, and the bevel gear 1 can rotate with the bracket body 3 at will.

More specifically, the connecting portion includes connecting cylinder 7 and bearing 8, and connecting cylinder 7 is inside hollow tubular structure, and the top fixed connection of its one end is in the bottom of bevel gear 1, has offered a through-hole on support body 3, and the outer lane of bearing 8 can be fixed to be set up in the through-hole of support body 3, and the inner circle of bearing 8 then is connected with the outside of connecting cylinder 7, and the hollow part of connecting cylinder 7 is used for screw rod and screw thread to pass.

For the convenience of disassembly and replacement of the bevel gear 1, through holes in the embodiment are arranged to be detachable, semicircular connecting hoops 2 are arranged at the through holes, threaded holes are formed in both the support body 3 and the semicircular connecting hoops 2, the support body 3 and the semicircular connecting hoops 2 are connected through screw threads, and the semicircular connecting hoops 2 form through holes with one side wall of the support body 3.

In this embodiment, the inner side of the inner hexagonal hole is provided with a plurality of through grooves, the through grooves are internally provided with protruding blocks, when the nut smaller than the inner hexagonal hole is disassembled, the appropriate protruding blocks can be arranged in the same grooves, so that the rotation of the inner hexagonal hole can be effectively transmitted to the nut, and the bevel gear 1 conforming to most threads can be selected for use when the device is manufactured.

In addition, a hand-held grab handle 5 is arranged on one side of the bracket body 3 and is used for holding the device during operation, so that shaking is reduced as much as possible.

In this embodiment, the bottom of one of the bevel gears 1 is provided with the rotating handle 6, so that the rotating handle 6 can be directly rotated without using other tools, and the corresponding bevel gear 1 can be rotated to provide rotating power.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides a nut demolishs device for screw rod, its characterized in that includes support body (3) and sets up two rotation parts on support body (3), two rotation parts rotate respectively connect in the both sides of support body (3), be provided with the gomphosis portion on the rotation part, the gomphosis portion is used for with disk valve nut (4) or rotating tool all surrounds the laminating and is connected, two the meshing is connected between the rotation part for make two rotation parts synchronous rotation.

2. Nut remover for threaded rods according to claim 1, characterized in that two of said rotating parts are symmetrically arranged on both sides of the bracket body (3) perpendicular to each other, said rotating parts comprise a connecting part and a bevel gear (1), said bevel gear (1) being rotatably connected to said bracket body (3) by means of the connecting part.

3. The nut removing device for a screw according to claim 2, wherein the connecting portion comprises a connecting cylinder (7) and a bearing (8), the connecting cylinder (7) is connected to the bottom of the bevel gear (1), the bracket body (3) is provided with a corresponding through hole, and the connecting cylinder (7) is rotatably connected in the through hole through the bearing (8).

4. A nut removing device for a threaded rod according to claim 3, wherein a semicircular connecting hoop (2) is arranged at the through hole, threaded holes are formed in the bracket body (3) and the semicircular connecting hoop (2), the bracket body (3) and the semicircular connecting hoop (2) are connected through bolt threads, and the semicircular connecting hoop (2) and one side of the bracket body (3) enclose the through hole.

5. A nut remover for a screw as claimed in claim 2, wherein said fitting portion is a hexagonal hole provided in the middle of said bevel gear (1).

6. The nut remover for a screw as defined in claim 5, wherein the inside of said internal hexagonal hole is provided with a plurality of through grooves for providing the protruding block therein.

7. Nut remover for threaded rods according to any of claims 2-6, characterized in that one side of the holder body (3) is provided with a hand-held grip (5).

8. Nut remover for threaded rods according to claim 7, characterized in that the bottom of one of said bevel gears (1) is provided with a rotating handle (6).