CN218114892U - Transportation device for low-voltage sleeve of transformer - Google Patents

Abstract

The utility model relates to a transportation device for a transformer low-voltage sleeve, which comprises a supporting mechanism fixed on a transformer lifting bar, a crossbeam arranged on the supporting mechanism, a slide rail component laid on the crossbeam, and a lifting mechanism arranged on the slide rail component; the transportation device also comprises a supporting arm component for supporting the low-voltage sleeve, the supporting arm component is fixed on the lifting mechanism and extends towards the low-voltage sleeve, and the lifting mechanism controls the longitudinal displacement of the supporting arm component; the sliding rail component comprises a sliding rail which extends transversely and is parallel to the wall of the transformer box, the lifting mechanism can move back and forth on the sliding rail, and the supporting arm component moves along with the lifting mechanism; the low-voltage sleeve and the lifting seat thereof of the transformer of the unit can be integrally transported; the problem of the conveyer in the correlation technique can't get into the pain point of this narrow and small space to the low pressure sleeve pipe dismantlement is solved, the loaded down with trivial details process that needs to remove the transformer or cut closed bus among the correlation technique has also been subtracted.

Description

Transportation device for low-voltage sleeve of transformer

Technical Field

The utility model relates to a nuclear power field especially relates to a conveyer for transformer low pressure sleeve pipe.

Background

In the related art, in a plurality of power stations, the transformer is arranged on the concrete base, the low-voltage sleeves and the lifting bases thereof are arranged above the transformer, the closed buses are arranged above the low-voltage sleeves, and the steel structure 205 which is opposite to the transformer and used for supporting is arranged; a small moving space is left between the steel structure 205 and the tank wall 202 of the transformer; the bottom of the lifting seat is provided with a flange 201; the tank wall 202 of the transformer is also provided with a raised step 203 and a plurality of transformer lifting bars 204 positioned below the step 203; the transformer hanger 204 is cylindrical and extends outwardly along the tank wall 202.

In general, the low-pressure casing has problems such as dielectric loss abnormality, oil leakage defect, etc., and needs to be disassembled and replaced. But due to the confined space of the enclosed bus and the proximity of the steel structure 205 to the transformer; in addition, the total weight of the low-pressure sleeve and the lifting seat thereof is about 1600KG, which exceeds the limit of 1000KG of the allowable load of the general scaffold; due to the heavy weight limitation, the common transportation device cannot transport the disassembled low-voltage sleeve out.

At present, the low-voltage bushing can be detached and transported from the transformer only by moving the transformer or cutting the closed bus, but the two modes not only take long time, but also bring huge influence and manpower and material resource consumption to overhaul period or production; and the cost caused by disassembly is high.

SUMMERY OF THE UTILITY MODEL

To above-mentioned at least one defect among the prior art, the utility model provides a conveyer for transformer low voltage bushing.

The utility model provides a technical scheme that its technical problem adopted is: the transportation device for the low-voltage sleeve of the transformer is constructed and comprises a supporting mechanism fixed on a lifting bar of the transformer, a cross beam arranged on the supporting mechanism, a sliding rail assembly paved on the cross beam and a lifting mechanism arranged on the sliding rail assembly;

the transportation device further comprises a supporting arm component for supporting the low-voltage sleeve, the supporting arm component is fixed on the lifting mechanism and extends towards the low-voltage sleeve, and the lifting mechanism controls the longitudinal displacement of the supporting arm component; the sliding rail component comprises a sliding rail which extends transversely and is parallel to the wall of the transformer box, the lifting mechanism can move back and forth on the sliding rail, and the supporting arm component moves transversely along with the lifting mechanism.

Preferably, the supporting mechanism comprises a first hoop component, a second hoop component arranged below the first hoop component and a supporting component arranged at the upper part of the first hoop component;

the lower part of the first hoop component is combined and connected with the second hoop component to form a clamping part which is annularly arranged and clamped on the peripheral surface of the transformer lifting bar; the support assembly has a support surface for supporting the beam.

Preferably, the support assembly comprises a first connecting plate and a support plate connected to the upper part of the first connecting plate;

the lower part of the first connecting plate is fixedly connected to the side face, far away from the wall of the transformer tank, of the first hoop component; the upper part of the first connecting plate is higher than the top of the first hoop component to form an avoiding part for avoiding a step of the transformer tank wall;

the top surface of the support plate serves as the support surface.

Preferably, the clamping portion comprises a first clamping surface and a second clamping surface which are V-shaped and are oppositely arranged.

Preferably, the transportation device comprises at least two cross beams and a connecting frame connected between two adjacent cross beams; and one supporting mechanism is arranged below each cross beam.

Preferably, the lifting mechanism comprises a base which is slidably connected to the slide rail, an upright post which is seated on the top of the base, a movable frame which is sleeved on the periphery of the upright post, and a second power assembly which is mechanically connected with the movable frame to drive the movable frame to move along the axial direction of the upright post;

the bracket arm assembly is fixed on the movable frame.

Preferably, the bracket arm assembly comprises a fixed part fixed on the movable frame, and a pair of bracket arms arranged at two ends of the fixed part and extending towards the low-voltage sleeve; the pair of supporting arm parts are used for abutting against a flange positioned at the bottom of the lifting seat of the low-pressure sleeve;

each arm supporting part is of a V-shaped structure, and two free ends of each arm supporting part are mechanically connected to the fixing part respectively to form a triangular structure with the fixing part.

Preferably, the slide rail assembly comprises a slide rail, a slide block mounted on the slide rail and a slide plate fixed on the slide block; the lifting mechanism is arranged at the top of the sliding plate;

the sliding rail can move back and forth along the sliding rail so as to drive the lifting mechanism to move on the sliding rail.

Preferably, the slide rail assembly further comprises a first power assembly for driving the slide block to displace on the slide rail;

the first power assembly comprises a motor, a rack which is arranged on the cross beam and is parallel to the sliding rail, and a gear which is meshed and connected with the rack;

the rotating shaft of the motor penetrates through the sliding block and the gear, and the gear is driven by the motor to move on the rack so as to drive the sliding block to move on the sliding rail.

Preferably, the second power assembly comprises a hydraulic jack.

Implement the utility model discloses following beneficial effect has: the transportation device constructed by the utility model can be arranged on the transformer lifting bar on the wall of the transformer tank to transport the low-voltage sleeve and the lifting seat of the unit transformer integrally; the transportation device has reasonable integral structure design and can be used in a narrow space between the wall of the transformer tank and a steel structure; the requirements of lifting capacity, bidirectional movement and unidirectional displacement distance are met; the device has the characteristics of simple and convenient disassembly and assembly, light and convenient full-load movement, safety, small maintenance amount and small storage space; the problem of the conveyer among the correlation technique can't get into the pain point of this narrow and small space to the low pressure sleeve pipe dismantlement is solved, the loaded down with trivial details process that needs to remove the transformer or cut closed bus among the correlation technique has also been subtracted.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is a schematic diagram of a front view structure of the transportation device of the present invention built on some transformers;

fig. 2 is a schematic front view of the transportation device of the present invention built on another transformer;

FIG. 3 is a schematic diagram of the front view structure of the transportation device of the present invention installed on another transformers;

FIG. 4 is a schematic diagram of a side view of the transportation device of the present invention built on some transformers;

fig. 5 is a schematic front view of a conveyor support mechanism according to some embodiments of the invention;

FIG. 6 is a side view schematic of the structure of FIG. 5;

FIG. 7 is a schematic top view of the structure of FIG. 5;

fig. 8 is a schematic front view of a support mechanism for a transportation device according to another embodiment of the present invention;

fig. 9 is a schematic front view of a conveyor support mechanism according to further embodiments of the invention;

FIG. 10 is a side view schematic of the structure of FIG. 9;

FIG. 11 is a schematic top view of the structure of FIG. 9;

fig. 12 is a schematic structural view of a slide rail assembly of the transportation device of the present invention;

fig. 13 is a front view of the slide rail assembly with the bracket arm assembly and the motor of the transportation device of the present invention;

FIG. 14 is a side schematic view of FIG. 13;

FIG. 15 is a cross-sectional view of the slide rail assembly with the trailing arm assembly of the transportation device of the present invention;

FIG. 16 is a schematic top view of a track assembly with a trailing arm assembly for a transportation device according to the present invention;

fig. 17 is a schematic top view of the connecting frame of the transportation device of the present invention.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are merely for convenience in describing the present technical solution and are not to be construed as indicating or implying any relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The utility model constructs a transportation device 100 for the low-voltage sleeve of the transformer, which can be arranged on a transformer lifting bar 204 positioned on a transformer box wall 202 to integrally disassemble the low-voltage sleeve and a lifting seat thereof of a unit transformer; the transportation device 100 has reasonable integral structure design and can be used in a narrow space between the transformer box wall 202 and the steel structure 205; the requirements of hoisting capacity, bidirectional movement and unidirectional displacement distance, hoisting height and measures for preventing the hoisted object from overturning are met; the device has the characteristics of simple and convenient disassembly and assembly, light and convenient full-load movement, safety, small maintenance amount and small storage space; the problem of the conveyer among the correlation technique can't get into the pain point of this narrow and small space to the low pressure sleeve pipe dismantlement is solved, the loaded down with trivial details process that needs to remove the transformer or cut closed bus among the correlation technique has also been subtracted.

Moreover, the device can be shared by a plurality of power stations, and different supporting mechanisms 1 can be selected according to different relative positions between the low-voltage sleeve and the transformer lifting bar 204, so that the purpose of sharing the plurality of power stations is achieved.

As shown in fig. 1, the longitudinal direction Y (simply referred to as the longitudinal direction) in the following description refers to the height direction of the transformer tank wall 202; the transverse direction X (simply referred to as transverse direction) in the following description refers to the longitudinal direction of the transformer tank wall 202.

As shown in fig. 1-4, the transport device 100 in some embodiments includes a support mechanism 1, a cross beam 2, a slide assembly 3, a lift mechanism 4, and a trailing arm assembly 5. Wherein, the supporting mechanism 1 is fixed on the transformer lifting bar 204 and used for supporting the beam 2. The beam 2 is built on the supporting mechanism 1, transversely arranged on the outer side of the transformer box wall 202 and used for bearing the sliding rail assembly 3, the lifting mechanism 4 and the supporting arm assembly 5. The slide rail component 3 is arranged at the top of the cross beam 2; the lifting mechanism 4 is arranged on the sliding rail component 3 and can transversely move along the sliding rail component 3. The bracket arm component 5 is used for supporting the low-pressure sleeve and the lifting seat thereof, the bracket arm component 5 is arranged on the lifting mechanism 4, and the lifting mechanism 4 controls the longitudinal displacement of the bracket arm component 5 on the basis of keeping synchronous transverse displacement with the lifting mechanism 4.

It will be appreciated that during the replacement of the low-voltage bushing, the transport device 100 is quickly assembled on the transformer tank wall 202; the lifting mechanism 4 and the support arm assembly 5 are moved to be positioned on the same longitudinal line with the low-voltage sleeve integrally by using the slide rail assembly 3; the lifting mechanism 4 controls the longitudinal displacement of the bracket arm assembly 5 to abut against a flange 201 at the bottom of a lifting seat of the low-pressure sleeve, so that the whole low-pressure sleeve and the lifting seat thereof are supported; subsequently, the longitudinal and transverse displacement of the bracket arm assembly 5 is realized again through the lifting mechanism 4 and the sliding rail assembly 3, and the whole low-pressure sleeve and the lifting seat thereof are moved to the proper position.

Referring to fig. 5-11, the supporting mechanism 1 may include a first hoop assembly 11, a second hoop assembly 12, and a supporting assembly 13. Specifically, the first hoop assembly 11 may be connected to the second hoop assembly 12 in a combined manner, and fixed around the circumferential wall of the transformer lifting bar 204. A support assembly 13 is mounted to an upper portion of the first hoop assembly 11 and has a support surface for supporting the cross beam 2.

In some embodiments, the first hoop assembly 11 includes a first embracing portion 111 located above the transformer hanger 204; the upper portion of the first surrounding portion 111 is used for connecting the supporting component 13, and the lower portion thereof has a first clamping surface 112 for abutting against the transformer hanger 204, and two first connecting portions 113 respectively extending along two opposite sides of the first clamping surface 112.

The second hoop assembly 12 includes a second hoop part 121 and two second connecting parts 123 located at two ends of the second hoop part 121. The second surrounding part 121 is arranged below the transformer hanger 204; which is provided with a second clamping surface 122 for abutting against the transformer tab 204. The two first connecting portions 113 of the first hoop assembly 11 are used for being mechanically connected with the two second connecting portions 123 of the second hoop assembly 12.

It can be understood that the first clamping surface 112 and the second clamping surface 122 can symmetrically abut against the upper and lower circumferential surfaces of the transformer hanger 204, and the first connecting portion 113 and the second connecting portion 123 are mechanically connected by a bolt or the like, so that the first hoop assembly 11 and the second hoop assembly 12 are connected in combination to form a clamping portion 124 annularly arranged and clamped on the outer circumferential surface of the transformer hanger 204, thereby fixing the supporting mechanism 1 on the transformer hanger 204. In some embodiments, the first clamping surface 112 and/or the second clamping surface 122 may be V-shaped.

In some embodiments, the support assembly 13 includes a first connecting plate 131, a support plate 132, and a first reinforcing plate 133.

The lower part of the first connecting plate 131 is mounted on the side of the first hoop component 11 away from the transformer tank wall 202 so as to be fixed on the first hoop component 11; the upper portion of the first connecting plate 131 is higher than the top of the first hoop assembly 11 to leave a space for assembling the cross beam 2; it is understood that the upper portion of the first connection plate 131 and the top portion of the first hoop module 11 form an avoiding portion for avoiding the step 203 of the transformer tank wall 202. In addition, a plurality of first through holes 1311 for mechanically connecting to the beam 2 are opened at the upper portion of the first connection plate 131.

The supporting plate 132 extends from the top of the first connecting plate 131 to a direction away from the transformer tank wall 202, and is preferably connected to the first connecting plate 131 perpendicularly; the top surface of the support plate 132 serves as the above-mentioned support surface for supporting the cross member 2.

The first reinforcing plate 133 is installed at the bottom of the supporting plate 132 and fixedly connected to the supporting plate 132 and the first connecting plate 131, respectively, to reinforce the supporting ability of the supporting plate 132. In some embodiments, the first reinforcing plate 133 has a plate-shaped structure having a trapezoidal shape; of course, the first reinforcing plate 133 may be formed in a shape that may be changed according to actual needs as long as the supporting strength of the supporting plate 132 is ensured.

It is to be understood that the first reinforcing plate 133 may be provided in plurality to further secure the supporting strength of the supporting plate 132. Preferably, the support assembly 13 further includes a second reinforcing plate 134, and the second reinforcing plate 134 is fixed to the bottom of the support plate 132 and transversely penetrates all the first reinforcing plates 133 to further ensure the support strength of the support plate 132.

Referring to fig. 1-3, the transportation device 100 of the present invention is respectively mounted on transformers with different structures. In particular, in the transformer configuration of fig. 3, the location of the two low voltage bushings is not located between the two transformer tabs 204, and is of an eccentric design.

Similar to the transformer structure of fig. 1 and 2, the support plate 132 may be located directly above the transformer hanger 204. Similar to the transformer structure of fig. 3, the transformer hoops are not located on both sides of the low-voltage bushing; for force balance, referring to fig. 9-11, the position of the supporting plate 132 is adjusted to be offset toward the low-voltage bushing, i.e. the center point of the supporting plate 132 in the transverse direction X is not located on the same vertical plane as the axial center line of the transformer tab 204.

The present invention provides three different embodiments of a support mechanism 1, as shown in fig. 5-11. The optimal support mechanism 1 can be selected according to the relative position between the transformer hanger 204 and the low-voltage bushing in different transformers.

In some embodiments, as shown in fig. 3, the support mechanism 1 further comprises a support column 14 for supporting the cross beam 2, according to the needs of the field; the support column 14 is fixed at one end to the concrete base and extends at the other end upwardly against the beam 2.

The number of support mechanisms 1 depends on the number of transformer hangers 204. In some embodiments, two transformer hangers 204 are provided on the transformer tank wall 202, and two support mechanisms 1 may be provided, each fixed to the two transformer hangers 204.

As shown in fig. 12, the cross member 2 is in some embodiments an elongated L-shaped structure including a first plate 21 and a second plate 22 connected to each other. The first flat plate 21 is transversely arranged and fixed on the outer side of the transformer tank wall 202; specifically, the plurality of support rods 23 are inserted into the transformer tank wall 202 after passing through the first through hole 1311 and the first plate 21 of the first connection plate 131, respectively, so as to fix the beam 2 outside the transformer tank wall 202. The second plate 22 is mounted on the support plate 132, and the second plate 22 is formed to extend in the transverse direction, with one end thereof extending to the edge of the transformer tank wall 202 and the other end thereof extending to the transverse position of the low-voltage bushing.

In some embodiments, the cross beam 2 is provided with one, supported by two support mechanisms 1. In other embodiments, referring to fig. 1-3, two beams 2 are provided, and the two beams 2 are mechanically connected to each other by a connecting frame 6 to be connected in series and located on the same straight line. The two cross beams 2 are each supported by a support mechanism 1. It is understood that the number of the cross beams 2 includes at least one, and when there are a plurality of cross beams 2, the cross beams are connected by one or more connecting frames 6, and the number is not particularly limited as long as the structural strength of the cross beams 2 is ensured.

As shown in fig. 1 and 17, the connecting frame 6 has an i-shaped structure in some embodiments, and four free ends of the connecting frame 6 are mechanically and fixedly connected with two adjacent cross beams 2 respectively.

As shown in fig. 12, the slide rail assembly 3 includes a slide rail 31, a slide block 32 mounted on the slide rail 31, and a slide plate 33 fixed to the slide block 32. Wherein, the slide rail 31 is mounted on the second flat plate 22 of the beam 2, and the extending direction of the slide rail is the same as that of the second flat plate 22; the length of the slide rail 31 is less than or equal to the length of the second plate 22. The sliding plate 33 is fixed on the top of the sliding block 32, and when the sliding block 32 slides and moves on the sliding rail 31, the sliding plate 33 can be driven to move back and forth along the extending direction of the sliding rail 31.

Alternatively, one sliding rail 31 or a plurality of parallel sliding rails 31 can be arranged on the second plate 22; each slide rail 31 is provided with at least one slider 32. In this embodiment, the device includes two parallel slide rails 31 and four slide blocks 32 installed on the two slide rails 31 two by two; the slide plate 33 is fixedly connected to the top of the four sliders 32.

In some embodiments, stoppers 34 are further installed at both ends of the slide rail 31 to prevent the slide block 32 from derailing.

In some embodiments, the slide rail assembly 3 further comprises a first power assembly 35 for driving the displacement of the slide block 32 on the slide rail 31. The first power assembly 35 includes a motor 351, a rack 352, and a gear 353; a rotating shaft of the motor 351 is connected to the gear 353 in a penetrating manner so as to drive the gear 353 to rotate; the gear 353 is mounted on the rack 352 and engaged with the rack 352, and the gear 353 is displaced on the rack 352 by the motor 351.

Referring to fig. 12 and 14, the rack 352 is mounted on the bottom of the beam 2 and parallel to the slide rail 31. The slider 32 adjacent the rack 352 is provided with a downwardly extending engagement portion; the rotating shaft of the motor 351 penetrates through the matching part to be connected with the gear 353, and the gear 353 can be driven to displace on the rack 352 when the motor 351 rotates, so that the sliding block 32 is driven to displace on the sliding rail 31.

The motor 351 is installed below the elevating mechanism 4 and moves on the guide rail 421 together with the elevating mechanism 4. In some embodiments, the base 41 of the lift mechanism 4 is provided with a downwardly extending mounting plate 45 to which the motor 351 is mounted. In some embodiments, the motor 351 can be a speed reducer with an operating handle that can be manipulated by a worker to rotate the gear 353.

As shown in fig. 13-16, the lifting mechanism 4 is a detachable structure and can be assembled and formed on the beam 2. In some embodiments, the lifting mechanism 4 includes a base 41, a column 42 standing on the top of the base 41, a movable frame 43 sleeved on the periphery of the column 42, and a second power assembly 44 connected to the movable frame 43 to drive the movable frame to move along the axial direction of the column 42. Wherein the base 41 is mounted on the top of the sliding plate 33 of the sliding rail assembly 3, and the whole lifting mechanism 4 can move transversely along with the sliding plate 33. The upright column 42 may be a square column in some embodiments, and a guide rail 421 extending along the axial direction of the upright column 42 is provided on the peripheral surface thereof; the movable frame 43 has a movable block 431 on an inner wall surface thereof, which is fitted to the guide rail 421, and the movable frame 43 is displaceable in the axial direction of the column 42 by fitting the movable block 431 to the guide rail 421. The second power assembly 44 is adjacent to the periphery of the movable frame 43, one end of the second power assembly is fixed on the base 41, and the other end of the second power assembly can be mechanically connected with the movable frame 43 and drive the movable frame 43 to axially displace.

In some embodiments, the second power assembly 44 may include a hydraulic jack, and the specific configuration of the hydraulic jack may refer to the related art, which will not be described in detail herein. Preferably, the apparatus uses a jack having a lifting height of 500mm, and it is not recommended to exceed 80% of the lifting height of the jack to ensure safety.

In some embodiments, the lifting mechanism 4 includes a pin (not shown) for inserting into the post 42, which is understandably inserted into the post 42 to prevent the hydraulic jack from being vented when the bracket arm assembly 5 is manipulated to jack up the low pressure sleeve to raise the low pressure sleeve to a certain height.

As shown in fig. 14 and 16, the bracket assembly 5 may include a fixed portion 51 fixed to the movable frame 43, and a pair of bracket portions 52 provided on the fixed portion 51 and extending toward the low-voltage bushing. Specifically, the fixed part 51 is mounted on the upper part of the movable frame 43, and the transverse length of the fixed part 51 is greater than that of the fixed frame and greater than the diameter of the low-pressure sleeve; in some embodiments, the stationary portion 51 is centrally secured to the side of the movable frame 43 facing the low pressure bushing. The pair of arm receiving portions 52 are fixed to the side surfaces of the fixed portion 51 facing the low-pressure bushing, and are located on both sides of the movable frame 43; the pair of arm receiving portions 52 extend to opposite peripheral sides of the low-pressure liner, respectively, and the top portions thereof are adapted to abut against the flange 201 of the bottom portion of the elevated seat to receive the entire low-pressure liner and the elevated seat thereof.

In some embodiments, each arm supporting portion 52 has a V-shaped structure, and the two free ends 521 of the arm supporting portion 52 are used for being mechanically connected to the fixing portion 51 to form a stable triangular structure with the fixing portion 51. In some embodiments, the bracket arm assembly 5 further includes a third reinforcing plate 53 for reinforcing the structural strength, and the third reinforcing plate is fixedly connected to the inner circumference of the bracket arm 52, so that two stable triangular structures are formed between the bracket arm 52 and the fixing portion 51.

In addition, when at least two cross beams 2 are installed, after the low-pressure sleeve corresponding to one of the cross beams 2 is removed, the lifting mechanism 4 and the bracket arm assembly 5 can be installed on the other cross beam 2 after being removed, so that the other low-pressure sleeve can be removed and carried.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. A transportation device for a transformer low-voltage sleeve is characterized by comprising a supporting mechanism (1) fixed on a transformer lifting bar (204), a cross beam (2) arranged on the supporting mechanism (1), a sliding rail assembly (3) laid on the cross beam (2), and a lifting mechanism (4) arranged on the sliding rail assembly (3);

the transportation device (100) further comprises a supporting arm component (5) for supporting the low-pressure sleeve, the supporting arm component (5) is fixed on the lifting mechanism (4) and extends towards the low-pressure sleeve, and the lifting mechanism (4) controls the longitudinal displacement of the supporting arm component (5); the sliding rail component (3) comprises a sliding rail (31) which extends transversely and is parallel to the wall (202) of the transformer tank, the lifting mechanism (4) can move back and forth on the sliding rail (31), and the supporting arm component (5) moves transversely along with the lifting mechanism (4).

2. The transportation device for the low-voltage bushing of the transformer according to claim 1, characterized in that, the supporting mechanism (1) comprises a first hoop assembly (11), a second hoop assembly (12) arranged below the first hoop assembly (11), and a supporting assembly (13) arranged on the upper portion of the first hoop assembly (11);

the lower part of the first hoop component (11) is combined and connected with the second hoop component (12) to form a clamping part (124) which is annularly arranged and clamped on the outer peripheral surface of the transformer lifting bar (204); the support assembly (13) has a support surface for supporting the cross member (2).

3. A transport unit for transformer low voltage bushings as claimed in claim 2 characterized in that said supporting assembly (13) comprises a first connecting plate (131) and a supporting plate (132) connected to the upper part of said first connecting plate (131);

the lower part of the first connecting plate (131) is fixedly connected to the side, away from the transformer tank wall (202), of the first hoop component (11); the upper part of the first connecting plate (131) is higher than the top of the first hoop component (11) to form an avoiding part for avoiding a step (203) of the transformer tank wall (202);

the top surface of the support plate (132) serves as the support surface.

4. A transport device for transformer low voltage bushings according to claim 3, characterized in that the clamping portion (124) comprises a first clamping surface (112) and a second clamping surface (122) in V-shape and arranged opposite each other.

5. A transport device for transformer low voltage bushings according to claim 1, characterized in that the transport device (100) comprises at least two cross beams (2) and a connecting frame (6) connected between two adjacent cross beams (2); and one supporting mechanism (1) is arranged below each cross beam (2).

6. The transportation device for the transformer low-voltage bushing according to claim 1, wherein the lifting mechanism (4) comprises a base (41) slidably connected to the sliding rail (31), a column (42) standing on top of the base (41), a movable frame (43) sleeved on the periphery of the column (42), and a second power assembly (44) mechanically connected with the movable frame (43) to drive the movable frame to move along the axial direction of the column (42);

the bracket arm assembly (5) is fixed on the movable frame (43).

7. A transport unit for low-voltage bushings of transformers according to claim 6, characterized in that said corbel assembly (5) comprises a fixed part (51) fixed to said mobile frame (43), a pair of corbel parts (52) provided on the two ends of said fixed part (51) and extending towards the low-voltage bushing; the pair of trailing arm portions (52) is used for abutting against a flange (201) located at the bottom of a lifting seat of the low-pressure sleeve;

each support arm part (52) is of a V-shaped structure, two free ends (521) of each support arm part (52) are mechanically connected to the fixing part (51) respectively, and a triangular structure is formed between each support arm part and the fixing part (51).

8. The transport unit for low-voltage bushings for transformers according to claim 1, characterized in that said sliding track assembly (3) comprises a sliding track (31), a sliding block (32) mounted on said sliding track (31) and a sliding plate (33) fixed on said sliding block (32); the lifting mechanism (4) is arranged at the top of the sliding plate (33);

the sliding rail (31) can move back and forth along the sliding rail (31) to drive the lifting mechanism (4) to move on the sliding rail (31).

9. A transport unit for transformer low voltage bushings according to claim 8, characterized in that the sliding rail assembly (3) further comprises a first power assembly (35) for driving the displacement of the slider (32) on the sliding rail (31);

the first power assembly (35) comprises a motor (351), a rack (352) which is arranged on the cross beam (2) and is parallel to the sliding rail (31), and a gear (353) which is meshed and connected with the rack (352);

the rotating shaft of the motor (351) penetrates through the sliding block (32) and the gear (353), and the motor (351) drives the gear (353) to displace on the rack (352) so as to drive the sliding block (32) to displace on the sliding rail (31).

10. Transportation device for transformer low-voltage bushings according to claim 6, characterized in that the second power assembly (44) comprises a hydraulic jack.

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