Dry-type transformer coil lifting appliance

Abstract

The utility model relates to the technical field of transformers, in particular to a dry-type transformer coil lifting appliance which comprises a fixing pipe, a first lead screw is arranged in the fixing pipe, first lead screw nuts are symmetrically arranged outside the first lead screw, a first motor is arranged at one end of the first lead screw, a base plate is arranged at the bottom end of an installation block, and a second lead screw is arranged in the base plate. A second motor is arranged at one end of the second screw rod; a fixed box is arranged between the two clamping plates; an extrusion block is arranged at the output end of the electric push rod; a coil is arranged between the two base plates; by means of the structure of the lead screw, the lead screw nut, the base plate, the electric push rod, the extrusion block and the clamping plate, the problem that in the lifting process of the lifting appliance, if the coil slightly moves or deforms, contact between the arc-shaped clamping plate and the inner wall of the coil is unstable is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, specifically is a dry -type transformer coil lifting appliance. BACKGROUND

[0002] In the transformer production, the electrician will produce different kinds of coils according to the need. In the process of installing the coil into the transformer, in order to make the coil not to shift loose and damage, it is necessary to use a special transformer, this tool can be fixed in the transformer inside through the compression coil, to keep the stability and tightness of the coil, so no matter whether the transformer is in work time is subjected to vibration and impact, the coil can keep in the correct position and state, and keep good energy transfer and transmission efficiency.

[0003] And in the application file with publication number CN220564127U mentioned a dry-type transformer coil lifting appliance, the lifting appliance is through the lifting appliance before hoisting the coil, first through the coil is fixed, according to the vertical height of the coil, first rotate the hand wheel, the rotation of the hand wheel drives the worm to rotate, through the meshing of the worm and the worm wheel, the worm wheel drives the adjusting screw to rotate, through the thread transmission of the left-hand thread and the right-hand thread on the adjusting screw, and the sliding relationship between the adjusting block and the limiting groove, the two adjusting blocks can move simultaneously or oppositely, the movement of the adjusting block drives the connecting arm to move, the movement of the connecting arm drives the clamp to move, the movement of the clamp drives the pad to move, adjust the distance between the two pads, the distance between the two pads is greater than the height of the coil, then the coil is placed between the two pads, while pulling the two arc-shaped clamps on the pad, the two arc-shaped clamps move relative to each other, the movement of the arc-shaped clamp drives the slider to slide on the sliding groove and extrudes the spring, the distance between the two arc-shaped clamps is adjusted to be less than the inner diameter of the coil, then the two arc-shaped clamps are placed in the inner part of the coil, and under the elastic action of the spring, the outer surface of the arc-shaped clamp is tightly contacted with the inner wall of the coil, while rotating the hand wheel, the two pads move relative to each other, the top and bottom of the coil are tightly fixed, then the coil can be hoisted through the cooperation of the lifting ring and the external machinery, the lifting appliance can quickly adjust the distance between the two pads during the process of fixing the coil, which is convenient for fixing the coil of different sizes, improves the versatility of the lifting appliance, and the arc-shaped clamp can effectively limit the coil of different inner diameters when the pad fixes the coil in the axial direction, which is high in practicality, the lifting appliance can fix the coil through one lifting appliance during use, which is convenient for people to use, and the axial fixing effect of the coil relies on the meshing effect of the worm and the worm wheel to adjust the position of the pad, and according to the self-locking property of the worm and the worm wheel, the stability of the axial fixing effect of the pad on the coil can be ensured, but there are still some defects, which need to be optimized, and the specific defects are as follows: when the arc-shaped plate cooperates with the external pad to clamp the inner side wall of the coil, the operation is complex and inconvenient, and if the coil moves slightly or deforms during hoisting, the contact between the arc-shaped clamp and the inner wall of the coil will be unstable, and the whole process is manually operated, which is low in efficiency.

[0004] Therefore, it is particularly important to design a dry-type transformer coil lifting appliance to change the above technical defects and improve the overall practicality. Practical new type content

[0005] The utility model aims at providing a dry-type transformer coil lifting appliance to solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A dry -type transformer coil hoist, including fixed pipe, the inside of fixed pipe is equipped with first lead screw, the outside of first lead screw is equipped with first lead screw nut, one end of first lead screw is equipped with first motor, one end of first lead screw nut is equipped with mounting block, the bottom of mounting block is equipped with backing plate, the inside of backing plate is equipped with second lead screw, the outside of second lead screw is equipped with second lead screw nut, second lead screw nut connects support rod, support rod connects clamping plate, one end of second lead screw is equipped with second motor, and the fixed box is equipped between two clamping plates, the inside of fixed box is equipped with electric push rod, the output of electric push rod is equipped with extrusion block, and the coil is equipped between two backing plates, one side of fixed pipe is equipped with counterweight assembly, and the top of fixed pipe is equipped with lifting ring.

[0008] As the preferred scheme of the utility model, the first lead screw and the second lead screw are connected with the first motor and the second motor through the shaft coupling, and the inner threads of the two first lead screw nuts and the second lead screw nuts are oppositely arranged.

[0009] As the preferred scheme of the utility model, the backing plate and the fixed pipe are provided with an avoiding groove for avoiding the second lead screw nut and the first lead screw nut.

[0010] As the preferred scheme of the utility model, one side of the extrusion block close to the coil is provided with a pressure sensor, and the output end of the electric push rod and the extrusion block are connected by a key.

[0011] As the preferred scheme of the utility model, the counterweight assembly includes a counterweight box, a partition, and a sealing door, the inside of the counterweight box is provided with a plurality of partitions, and the plurality of partitions are arranged at equal intervals, the sealing door is connected with the counterweight box through a hinge, and the counterweight box and the sealing door are connected and fixed by a lock catch.

[0012] As the preferred scheme of the utility model, one side of the outside of the fixed pipe is provided with a storage battery and a control panel, the control panel and the storage battery are electrically connected, used for providing power support, and the control panel, the first motor, the second motor and the electric push rod are electrically connected.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The utility model discloses a dry -type transformer coil hoist, utilize the structure of lead screw, lead screw nut, backing pad, electric push rod, extruding piece, clamping plate, drive two backing pads each other high with first lead screw, carry out the extrusion of height to coil, and the extruding piece in fixed box is equipped with on backing pad, and the clamping plate of cooperation of second lead screw driven of fixed box interior can position limit to coil, prevent its deformation when displacement, replace the coil of placing after inconveniently pulling the operation of arc plate originally, solveed that the hoist in utilize arc plate cooperation external backing pad to the clamping of coil inner side wall, complex and inconvenient operation simultaneously, if coil is slightly moved or deformed in the process of hoisting, will lead to the contact of arc clamping plate and coil inner wall is not stable, and the whole process is artificial operation, and the problem of low efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the overall structural diagram of the utility model;

[0016] Fig. 2 It is the overall plane schematic diagram of the utility model;

[0017] Fig. 3 It is the schematic diagram of the coilless whole of the utility model.

[0018] In the drawing: 1, fixed pipe, 101, first lead screw, 102, first lead screw nut, 103, first motor, 104, mounting block, 2, backing pad, 201, second lead screw, 202, second lead screw nut, 203, support rod, 204, clamping plate, 205, second motor, 3, fixed box, 301, electric push rod, 302, extruding piece, 4, coil, 401, counterweight assembly, 402, lifting ring. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Several embodiments of the utility model are given. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] It should be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, it should be understood that when an element is referred to as being "connected, coupled or linked to" another element, it can be directly connected, coupled or linked to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "left", "right" and the like are merely used for the purpose of illustration and description.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] Embodiment, please refer to Figs. 1-3 The application provides a technical scheme:

[0024] A dry-type transformer coil lifting appliance, comprising a fixed tube 1, the inside of the fixed tube 1 is provided with a first lead screw 101, the outside of the first lead screw 101 is symmetrically provided with a first lead screw nut 102, one end of the first lead screw 101 is provided with a first motor 103, one end of the first lead screw nut 102 is provided with a mounting block 104, the bottom end of the mounting block 104 is provided with a pad 2, the inside of the pad 2 is provided with a second lead screw 201, the outside of the second lead screw 201 is symmetrically provided with a second lead screw nut 202, the second lead screw nut 202 is connected with a support rod 203, the support rod 203 is connected with a clamping plate 204, one end of the second lead screw 201 is provided with a second motor 205, a fixed box 3 is arranged between the two clamping plates 204, the inside of the fixed box 3 is symmetrically provided with an electric push rod 301, the output end of the electric push rod 301 is provided with a pressing block 302, a coil 4 is arranged between the two pads 2, one side of the fixed tube 1 is provided with a counterweight assembly 401, the top end of the fixed tube 1 is provided with a lifting ring 402, an operator places the coil 4 on the lower pad 2, then starts the first motor 103 to drive the first lead screw 101 to rotate through a control panel, drives the two pads 2 to approach each other, adapts to coils 4 of different heights, and at the same time, the second lead screw 201 drives the two clamping plates 204 to limit the outside of the coil, the electric push rod 301 pushes the pressing block 302 to approach the coil 4, and the pressing force of the pressing block 302 on the coil is monitored in real time through a pressure sensor, when the pressing force reaches a set value, the electric push rod 301 will automatically stop stretching, to avoid excessive pressing on the coil 4, finally, according to the size and weight of the coil 4, an appropriate amount of counterweight is added in the counterweight assembly 401 to keep the balance of the fixed tube 1, and then the lifting appliance can be hung on a lifting device through the lifting ring 402;

[0025] The first screw rod 101 and the second screw rod 201 are connected with the first motor 103 and the second motor 205 through a shaft coupling, and the inner threads of the two first screw rod nuts 102 and the second screw rod nuts 202 are oppositely arranged, so that the two pads can control the extrusion of the coil in the height direction, and the two clamps can control the position of the coil, and the pads 2 and the fixed tube 1 are provided with avoiding grooves for avoiding the second screw rod nut 202 and the first screw rod nut 102, so that the screw rod nut can move, a pressure sensor is arranged on the side surface of the extrusion block 302 close to the coil 4, and the output end of the electric push rod 301 is connected with the extrusion block 302 through a key, so that the extension of the electric push rod can be stopped, the counterweight assembly 401 comprises a counterweight box, a partition plate and a sealing door, a plurality of partition plates are arranged in the counterweight box at equal intervals, the sealing door is connected with the counterweight box through a hinge, and the counterweight box and the sealing door are connected and fixed by a lock catch, so that the balance of the fixed tube 1 on the left and right sides is maintained, and the fixed tube 1 is prevented from tilting and falling, a storage battery and a control panel are arranged on the outer side surface of the fixed tube 1, the control panel is electrically connected with the storage battery, and the control panel is electrically connected with the first motor 103, the second motor 205 and the electric push rod 301, so that the on-off element can be controlled.

[0026] The working process of the utility model is as follows: when the dry-type transformer coil lifting appliance is used, first, the operator places the coil 4 on the lower pad 2, then starts the first motor 103 to drive the first screw rod 101 to rotate through the control panel, drives the two pads 2 to move close to each other, and adapts to the coil 4 with different heights, and at the same time, the second screw rod 201 drives the two clamps 204 to limit the outer part of the coil, the electric push rod 301 pushes the extrusion block 302 to move close to the coil 4, and the pressure sensor is used to monitor the extrusion force of the extrusion block 302 on the coil in real time, when the extrusion force reaches the set value, the electric push rod 301 will automatically stop extending, so as to avoid excessive extrusion of the coil 4, finally, according to the size and weight of the coil 4, appropriate counterweights are added in the counterweight assembly 401 to maintain the balance of the fixed tube 1, and then the lifting appliance can be hung on the hoisting equipment through the lifting ring 402.

[0027] 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 modifications can be made to the 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 dry-type transformer coil hoist comprising a stationary tube (1), characterized in that: The inside of the fixed pipe (1) is provided with a first lead screw (101), the outside of the first lead screw (101) is provided with a first lead screw nut (102) symmetrically, one end of the first lead screw (101) is provided with a first motor (103), one end of the first lead screw nut (102) is provided with a mounting block (104), the bottom end of the mounting block (104) is provided with a backing plate (2), the inside of the backing plate (2) is provided with a second lead screw (201), the outside of the second lead screw (201) is provided with a second lead screw nut (202) symmetrically, the second lead screw nut (202) is connected with a support rod (203), the support rod (203) is connected with a clamping plate (204), one end of the second lead screw (201) is provided with a second motor (205), a fixed box (3) is arranged between the two clamping plates (204), the inside of the fixed box (3) is provided with a motor push rod (301) symmetrically, the output end of the motor push rod (301) is provided with a extrusion block (302), a coil (4) is arranged between the two backing plates (2), one side of the fixed pipe (1) is provided with a counterweight assembly (401), and the top end of the fixed pipe (1) is provided with a lifting ring (402).

2. A dry-type transformer coil lifter according to claim 1, characterized in that: The first lead screw (101) and the second lead screw (201) are connected with the first motor (103) and the second motor (205) through a shaft coupling respectively, and the inner threads of the two first lead screw nuts (102) and the second lead screw nuts (202) are oppositely arranged.

3. A dry-type transformer coil lifter according to claim 1, characterized in that: The backing plate (2) and the fixed pipe (1) are provided with an avoiding groove for avoiding the second lead screw nut (202) and the first lead screw nut (102).

4. A dry-type transformer coil lifter according to claim 1, characterized in that: The extrusion block (302) is provided with a pressure sensor on the side close to the coil (4), and the output end of the motor push rod (301) is connected with the extrusion block (302) through a key.

5. A dry-type transformer coil lifter according to claim 1, characterized in that: The counterweight assembly (401) comprises a counterweight box, a partition plate and a sealing door, the inside of the counterweight box is provided with a plurality of partition plates, the plurality of partition plates are arranged at equal intervals, the sealing door is connected with the counterweight box through a hinge, and the counterweight box and the sealing door are connected and fixedly closed through a lock catch.

6. A dry-type transformer coil lifter according to claim 1, characterized in that: One side of the outside of the fixed pipe (1) is provided with a storage battery and a control panel, the control panel and the storage battery are electrically connected, used for providing power support, and the control panel is electrically connected with the first motor (103), the second motor (205) and the motor push rod (301).

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