CN115818426B

CN115818426B - Mixed tower segment lifting auxiliary equipment

Info

Publication number: CN115818426B
Application number: CN202211597269.3A
Authority: CN
Inventors: 朱文杰; 魏思航; 赵学明
Original assignee: Jujie Technology Development Group Co ltd
Current assignee: Jujie Technology Development Group Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-06-20
Anticipated expiration: 2042-12-12
Also published as: CN115818426A

Abstract

The invention provides mixed tower duct piece hoisting auxiliary equipment which comprises an assembling platform, wherein a support column is arranged in the middle of the lower end of the assembling platform, positioning mechanisms which are positioned between two adjacent frame bars of the assembling platform and can move towards the axis of the assembling platform are uniformly distributed at the periphery of the assembling platform, each positioning mechanism comprises a screw block and a second motor which is fixed on the inner side of the screw block, a turntable is connected to an output shaft of the second motor and can move duct pieces leaning against the turntable, a pushing assembly driven by a descending duct piece and a turnover assembly driven by the pushing assembly are arranged on the screw block, and a jacking ball which can push the duct pieces against the turntable is elastically arranged at the turnover assembly. According to the auxiliary device for lifting the pipe pieces of the mixing tower, the pipe pieces are propped against the turntable by the descending pipe piece driving top ball, and the position of the pipe pieces is adjusted by moving the turntable, so that the auxiliary device is safe and efficient.

Description

Mixed tower segment lifting auxiliary equipment

Technical Field

The invention relates to the technical field of wind power concrete towers, in particular to auxiliary equipment for hoisting mixed tower segments.

Background

With the further development and utilization of wind resources in China, the wind generating set gradually develops to high power and high cavitation, and the traditional wind power flexible all-steel tower technology is difficult to meet the requirements of wind generating set towers with large rigidity and large diameter. In recent years, along with popularization of assembly type concrete technology in China, the application of the segmented precast assembled type concrete tower drum in the field of wind power generation is increasingly popular, the defects of low rigidity and small diameter of a flexible steel tower are effectively overcome, in general, the concrete tower drum is divided into a plurality of segments in the height direction of the tower drum, and each segment is basically formed by splicing 4 precast concrete segments on site.

At present, a duct piece is hung to an assembly platform for assembly, middle holes are vertically formed in the middle of the assembly platform, 8 support bars are circumferentially and uniformly distributed at the assembly platform, a foot support is arranged at the outer side of the lower end of each support bar, pin holes for placing locating pins are formed in the upper ends of the support bars at equal intervals along the length direction of each support bar, duct pieces are bound below long arms of a crane by binding bands and are hung vertically, a worker is required to hold the hung duct piece in the process of being close to the assembly platform, and position adjustment is carried out on the duct piece continuously through manpower, so that the locating holes at the lower end of the duct piece can accurately enter the locating pins, and the duct piece falling-down is dangerous and troublesome to operate.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to solve the technical problem of providing a mixing tower duct piece hoisting auxiliary device, wherein a descending duct piece drives a top ball to push a duct piece against a turntable, and the turntable moves the duct piece to adjust the position of the duct piece.

(2) Technical proposal for solving the problems

The invention provides mixed tower duct piece hoisting auxiliary equipment, which comprises an assembling platform, wherein a support column is arranged in the middle of the lower end of the assembling platform, positioning mechanisms which are positioned between two adjacent frame bars of the assembling platform and can move towards the axis of the assembling platform are uniformly distributed at the periphery of the assembling platform, each positioning mechanism comprises a screw block and a second motor which is fixed on the inner side of the screw block, a turntable is connected to an output shaft of the second motor and can move a duct piece which is close to the turntable, a pushing component driven by a descending duct piece and a turnover component driven by the pushing component are arranged on the screw block, a jacking ball which can push the duct piece against the turntable is elastically arranged at the turnover component, the hoisted duct piece descends and drives the turnover component and the jacking ball through the pushing component, and the jacking ball enables the duct piece to be close to the turntable and can be aligned to a positioning pin through the rotation of the turntable.

Further, the propulsion assembly comprises a pressing bar vertically sliding on the screw block, an elastic piece is connected between the lower end of the pressing bar and the screw block, an incomplete gear is rotationally arranged above the screw block, partial teeth matched with the incomplete gear are arranged on the inner side of the pressing bar, a first gear is coaxially connected to one side of the incomplete gear, a second gear is meshed with the outer side of the first gear, a sliding bar is slidingly arranged in the middle of the screw block along the length direction of the screw block, and partial teeth meshed with the second gear are arranged on the inner side of the upper end of the sliding bar.

Further, a disc is arranged at the top end of the pressing strip, a flat plate is arranged at the lower end of the pressing strip, and a limit column contacted with the bottom of the screw block is arranged at the upper end of the flat plate.

Further, when the teeth of the incomplete gear are separated from the partial teeth of the pressing bar, the pressing bar abuts against the incomplete gear, and the incomplete gear can be locked.

Further, the upset subassembly is including being fixed in the fixed block in the outside of draw runner upper end, the bilateral symmetry of fixed block is provided with the traveller, the both sides of spiral shell piece are fixed with the fixed plate symmetrically, two rotationally be provided with two connecting rods between the fixed plate, the kicking ball set up in elastically the inboard of connecting rod upper end, the lower extreme of connecting rod is followed the length direction of connecting rod has seted up and has held the traveller sliding fit's slide hole.

Further, the top ball is arranged on the inner side of the upper end of the connecting rod through an elastic telescopic rod, and the telescopic direction of the elastic telescopic rod is perpendicular to the connecting rod.

Further, be provided with first motor up in the support column, the key joint has first conical gear on the output shaft of first motor, screw rod department spiro union has the extension to in the centre bore of assembling the platform, be provided with on the assembling the platform with the screw rod is parallel and with the spacing of screw rod piece side laminating, the tip key joint of screw rod have with first conical gear meshing second conical gear.

Further, an inner connecting block and an outer connecting block which are used for allowing the screw to rotate are connected between the two frame bars at the position adjusting mechanism, the limiting bars are connected with the inner connecting block and the outer connecting block, and the screw block moves between the inner connecting block and the outer connecting block.

(3) Advantageous effects

According to the auxiliary device for lifting the pipe pieces of the mixing tower, the pipe pieces are propped against the rotary table through the descending pipe piece driving top ball, the annular positions of the pipe pieces are positioned, and the rotary table moves the pipe pieces to adjust the left and right positions of the annular positions of the pipe pieces, so that the auxiliary device is safe and efficient; the ejector ball which is elastically and telescopically arranged is not separated after being propped against the outer wall of the duct piece, and in the process, the duct piece can be always leaned against the turntable; the ejector ball enables the pipe piece to lean against the rotary table, at the moment, the pipe piece is positioned above the positioning pin, the positioning hole at the lower end of the pipe piece and the positioning pin are positioned in the same circle, and the pipe piece can be aligned to the positioning pin through rotation of the rotary table; the pressing bar is pressed down when the duct piece descends, the pressing bar drives the sliding bar to move outwards, the sliding bar drives the connecting rod and the top ball to turn over, other energy sources are not needed for driving and controlling, and the operation procedures are reduced; the pressing bar is lifted to the top, the incomplete gear is locked by the pressing bar, the connecting rod can be prevented from being disturbed, the sliding bar is moved to the bottom outside, the ejector ball props against the duct piece, the incomplete gear is locked by the pressing bar, and the ejector ball can be prevented from being separated from the duct piece; the spacing column is arranged to limit the distance for the pressing strip to move upwards, and when the spacing column is propped against the bottom of the screw block, the pressing strip can only be pressed downwards; the connecting rod is turned over, so that a space can be reserved for the descending duct piece, the duct piece is pressed down to the pressing strip and does not touch other parts, accurate descending is not needed, and the hoisting is simple; after the duct piece of one layer is completed, the duct piece of the next layer is not required to be pushed by manpower in sequence, and the first motor drives the positioning mechanism to move the same distance to the axis of the assembly platform so as to adapt to the duct piece hoisting of the next layer; the screw rod can be stabilized to interior connecting block, outer connecting block for the screw rod can bear the structure of screw rod piece and top, and spacing both can make the screw rod piece remove and not rotate along the direction of screw rod, and can strengthen the structural strength of interior connecting block, outer connecting block.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic diagram of the structure of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a top view of the present invention;

FIG. 5 is a cross-sectional view A-A of FIG. 4;

FIG. 6 is a top view of the present invention with the tube sheets lowered adjacent to the splicing platform;

FIG. 7 is a cross-sectional view of the present invention with the tube sheets lowered adjacent the splicing platform;

FIG. 8 is a cross-sectional view of the segment pressing bar of the present invention with the ejector ball pushing against the turntable;

FIG. 9 is a cross-sectional view of the present invention with the tube sheet lowered to the bottom;

fig. 10 is an enlarged view of a portion B of fig. 1;

fig. 11 is an enlarged view of a portion C of fig. 5;

fig. 12 is an enlarged view of a portion D of fig. 8;

fig. 13 is a perspective view of a molding, an incomplete gear of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 13, the invention provides a mixed tower duct piece hoisting auxiliary device, which comprises an assembling platform 1, wherein middle holes are vertically formed in the middle of the assembling

platform

1, 8 frame bars are circumferentially and uniformly distributed at the assembling platform 1, a foot support is arranged at the outer side of the lower end of each frame bar, pin holes for placing locating pins are equidistantly formed at the upper end of each frame bar along the length direction of each frame bar, a support column 2 is arranged in the middle of the lower end of the assembling platform 1, positioning mechanisms which are circumferentially and uniformly distributed at the assembling platform 1 and are positioned between two adjacent frame bars of the assembling platform 1 and can move towards the axis of the assembling platform 1 are sequentially overlapped, the outer walls of the duct pieces of the mixed tower are obliquely upwards, the positioning mechanisms can be applicable to duct pieces of different layers through the axial movement towards the assembling platform, each positioning mechanism comprises a screw block 7, a second motor 9 fixed at the inner side of the screw block 7, a rotary disk 10 is connected to the output shaft of the second motor 9, the second motor and the turntables are symmetrically arranged on two sides of the inner side of the spiral block, the two turntables can prevent the pipe piece leaning against the turntables from shifting, the pipe piece leaning against the turntables 10 can be moved, the spiral block 7 is provided with a pushing component 11 driven by the descending pipe piece and a turnover component 12 driven by the pushing component 11, the turnover component 12 is elastically provided with a jacking ball 14 which can jack the pipe piece leaning against the turntables 10, the outer wall of the pipe piece is slightly inclined, the jacking ball which is elastically arranged is not separated after the jacking ball is propped against the outer wall of the pipe piece in the process of descending the pipe piece, the pipe piece can be always leaning against the turntables in the process, the hoisted pipe piece descends and drives the turnover component 12 and the jacking ball 14 through the pushing component 11, the jacking ball 14 enables the pipe piece to lean against the turntables 10, the pipe piece is positioned above the locating pin at the moment, and the locating hole at the lower end of the pipe piece is positioned in the same circle with the locating pin, the pipe pieces can be aligned to the positioning pins through the rotation of the rotary disc 10, the second motor drives the rotary disc to rotate, the rotary disc enables the pipe pieces leaning against the rotary disc to rotate around the center of the assembly platform until the positioning holes at the lower ends of the pipe pieces are aligned with the positioning pins, then the pipe pieces continue to descend and are inserted into the positioning pins, 4 pipe pieces are hoisted in sequence to form a circular ring, (the last pipe piece does not need to rotate, two adjacent pipe pieces are located, the last pipe piece is located), and staff installs arc bolts in the adjacent pipe pieces to connect the pipe pieces together, and then the pipe pieces are hoisted layer by layer to form the mixing tower.

The pushing assembly 11 comprises a pressing strip 11.1 vertically and slidingly matched with the screw block 7, an elastic piece is connected between the lower end of the pressing strip 11.1 and the screw block 7, an incomplete gear 11.2 is rotationally arranged above the screw block 7, partial teeth matched with the incomplete gear 11.2 are arranged on the inner side of the pressing strip 11.1, a first gear 11.3 is coaxially connected to one side of the incomplete gear 11.2, a second gear 11.4 is meshed with the outer side of the first gear 11.3, a sliding strip 11.5 is slidingly arranged in the middle of the screw block 7 along the length direction of the screw block 7, partial teeth meshed with the second gear 11.4 are arranged on the inner side of the upper end of the sliding strip 11.5, and when the teeth of the incomplete gear 11.2 are separated from the partial teeth of the pressing strip 11.1, the pressing strip 11.1 abuts against the incomplete gear 11.2, and the incomplete gear 11.2 can be locked. When the pipe piece descends, the pressing strip is pressed down, when the pressing strip descends, partial teeth of the pressing strip rotate with the incomplete gear, the incomplete gear rotates with the second gear through the first gear, the second gear drives the sliding strip to move outwards through partial teeth on the sliding strip, the sliding strip enables the ejector ball to prop against the outer wall of the pipe piece through the overturning assembly, the pipe piece is propped against the turntable, at the moment, the pipe piece is located above the locating pin, the locating hole at the lower end of the pipe piece is located on the same circle with the locating pin, at the moment, the teeth of the incomplete gear are separated from partial teeth of the pressing strip, the incomplete gear is locked, the pipe piece continues to press down, the sliding strip does not move, the ejector ball still props against the pipe piece, the turntable rotates with the pipe piece around the axis of the assembly platform until the locating hole at the lower end of the pipe piece is aligned with the locating pin, and the locating pin is inserted into the locating hole, as shown in fig. 9.

The top of the press bar 11.1 is provided with a disc, the disc can disperse pressure when the duct piece is pressed down so as to avoid damaging the press bar, the lower end of the press bar 11.1 is provided with a flat plate, the upper end of the flat plate is provided with a limit column contacted with the bottom of the screw block 7, and when the duct piece moves away from the press bar, the press bar moves upwards to reset under the action of an elastic piece until the limit column abuts against the bottom of the screw block, so that the distance of the upward movement of the press bar is limited.

Through draw runner drive connecting rod, kicking ball upset for the kicking ball is propped the section of jurisdiction and is leaned on in the carousel, and upset subassembly 12 is including being fixed in the fixed block 12.1 in the outside of draw runner 11.5 upper end, and the bilateral symmetry of fixed block 12.1 is provided with traveller 12.2, and the both sides of spiral shell piece 7 are fixed with fixed plate 12.4 symmetrically, are provided with two connecting rods 12.3 rotationally between two fixed plates 12.4, and kicking ball 14 elastically sets up in the inboard of connecting rod 12.3 upper end, and Rong Huazhu 12.2 smooth sliding hole has been seted up along the length direction of connecting rod 12.3 to the lower extreme of connecting rod 12.3. The sliding bar moves outwards and carries the fixed block and the sliding column to move outwards, the sliding column carries the connecting rod to rotate around the fixed plate through the sliding hole, the connecting rod and the ejector ball are enabled to overturn, the ejector ball is propped against the outer wall of the duct piece, and the duct piece is enabled to lean against the turntable. Meanwhile, a space can be reserved for the descending duct piece, the duct piece is pressed down to the pressing strip and does not touch other parts, accurate descending is not needed, and hoisting is simple.

The elastic telescopic rod is simple and practical in material taking, the top ball 14 is arranged on the inner side of the upper end of the connecting rod 12.3 through the elastic telescopic rod 13, and the telescopic direction of the elastic telescopic rod 13 is perpendicular to the connecting rod 12.3. The elastic telescopic rod is simple and practical in material taking, when the ejector ball is propped against the pipe piece, the pipe piece is propped against the rotary table, the outer wall of the pipe piece is slightly inclined, the ejector ball is required to be elastically propped outwards, the pipe piece is ensured to be always propped against the rotary table, and when the ejector ball is not propped against the pipe piece, the ejector ball is outwards stretched to the bottom.

After the segment of one deck is accomplished, need not the manual work and promote in proper order, remove the same distance to the axis of assembling platform through first motor drive positioning mechanism, in order to adapt to the hoist and mount of segment of next floor, be provided with first motor 3 up in the support column 2, the last key joint of the output shaft of first motor 3 has first conical gear 4, screw rod 7 department spiro union has the screw rod 6 that extends to the centre bore of assembling platform 1, be provided with on the assembling platform 1 with screw rod 6 parallel and with screw rod 7 side laminating spacing 8, screw rod 6's tip key joint has the second conical gear 5 with first conical gear 4 meshing. The first motor is a stepping motor, the first motor drives the first conical gear to rotate, the first conical gear enables the screw rod to rotate through the second conical gear, the screw rod drives the screw rod to move along the direction of the screw rod (namely to the axis direction of the assembly platform) due to the fact that the screw rod is limited to rotate by the limiting strip, and the four screw rod blocks move by the same distance so as to adapt to the pipe piece lifting of the next layer.

The screw rod 6 pivoted interior linkage piece 15, outer connecting block 16 are connected with between two frame strips of positioning mechanism department, interior linkage piece, outer connecting block can stabilize the screw rod for the screw rod can bear the structure of screw rod piece and top, and spacing 8 connects interior linkage piece 15, outer connecting block 16, and spacing both can make the screw rod piece remove and not rotate along the direction of screw rod, and can strengthen the structural strength of interior linkage piece, outer connecting block, and screw rod 7 removes between interior linkage piece 15, outer connecting block 16.

The specific working procedure of the invention is as follows: the pipe piece is bound below the long arm of the crane by a binding belt and is vertically hung down, as shown in fig. 6 and 7, the pipe piece descends while the pressing strip is pressed down, when the pressing strip descends, part of teeth of the pressing strip rotate with the incomplete gear, the incomplete gear rotates with the second gear through the first gear, the second gear drives the sliding strip to move outwards through part of teeth on the sliding strip, the sliding strip moves outwards with the fixed block and the sliding column, the sliding column rotates around the fixed plate through the sliding hole with the connecting rod, so that the connecting rod and the jacking ball overturn, the jacking ball is propped against the outer wall of the pipe piece, the pipe piece is propped against the turntable, at the moment, the pipe piece is positioned above the positioning pin, the positioning hole at the lower end of the pipe piece is positioned in the same circle with the positioning pin, as shown in fig. 8, at the moment, the teeth of the incomplete gear are separated from part of teeth of the pressing strip, the incomplete gear is locked, the sliding strip is continuously pressed down, the sliding strip is still propped against the pipe piece, the second motor is controlled by the staff to rotate the turntable, the turntable drives the segments to rotate around the axis of the assembly platform until the positioning holes at the lower end of the segments are aligned with the positioning pins, the segments continue to descend and the positioning pins are inserted into the positioning holes, as shown in figure 9, 4 segments are hoisted in sequence to form a circular ring, (the last segment does not need to rotate the turntable, the last segment is positioned by two adjacent segments), the staff installs arc bolts in the adjacent segments to connect the segments together and then hoist the segments to move to other places, the layering is lifted and reset under the action of the elastic piece while the segments ascend, part of teeth of the layering drive the incomplete gears to reverse, the incomplete gears drive the connecting rod and the ejector ball to reverse and reset through the first gear and the second gear to drive the sliding strip to move inwards, after the part of teeth of the layering are separated from the incomplete gears, the layering continues to lock the incomplete gears, then the first motor drives the first conical gear to rotate, the first conical gear enables the screw to rotate through the second conical gear, the screw drives the screw to move along the direction of the screw (namely towards the axis direction of the assembly platform) due to the fact that the limiting strip limits the screw to rotate, the four screw blocks and the components above the screw blocks move the same distance to adapt to the pipe piece hoisting of the next layer, and the annular pipe piece is lapped layer by layer to form the mixing tower.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.

Claims

1. Mixed tower section of jurisdiction hoist and mount auxiliary assembly, including assembling platform (1), its characterized in that: the middle of the lower end of the assembly platform (1) is provided with a support column (2), the assembly platform (1) is circumferentially and uniformly distributed with a positioning mechanism which is positioned between two adjacent frame bars of the assembly platform (1) and can move towards the axis of the assembly platform (1), the positioning mechanism comprises a screw block (7), a second motor (9) which is fixed on the inner side of the screw block (7), an output shaft of the second motor (9) is connected with a rotary table (10) and can enable a segment which is leaning against the rotary table (10) to move, the screw block (7) is provided with a pushing component (11) which is driven by a descending segment and a turnover component (12) which is driven by the pushing component (11), the turnover component (12) is elastically provided with a jacking ball (14) which can push the segment to lean against the rotary table (10), the jacking ball (14) is lowered and driven by the pushing component (11), the jacking ball (14) enables the segment to lean against the rotary table (10) and the rotary table (7) to be aligned with the rotary table (11) vertically, the segment (11) is connected with the compression bar (11), the top of spiral shell piece (7) is rotationally provided with incomplete gear (11.2), the inboard of layering (11.1) be provided with the partial tooth of incomplete gear (11.2) matched with, one side coaxial coupling of incomplete gear (11.2) has first gear (11.3), the outside meshing of first gear (11.3) has second gear (11.4), the centre of spiral shell piece (7) is followed the length direction of spiral shell piece (7) is slided and is furnished with draw runner (11.5), the inboard of draw runner (11.5) upper end be provided with the partial tooth of second gear (11.4) meshing.

2. The mixing tower segment lifting auxiliary device according to claim 1, wherein: the top of layering (11.1) is provided with the disc, the low end of layering (11.1) is provided with the flat board, the upper end of flat board be provided with spacing post of spiral shell piece (7) bottom contact.

3. The mixing tower segment lifting auxiliary device according to claim 1, wherein: when the teeth of the incomplete gear (11.2) are separated from part of the teeth of the pressing strip (11.1), the pressing strip (11.1) abuts against the incomplete gear (11.2) so that the incomplete gear (11.2) can be locked.

4. The mixing tower segment lifting auxiliary device according to claim 1, wherein: the turnover assembly (12) comprises a fixed block (12.1) fixed on the outer side of the upper end of the sliding bar (11.5), sliding columns (12.2) are symmetrically arranged on two sides of the fixed block (12.1), fixing plates (12.4) are symmetrically fixed on two sides of the screw block (7), two connecting rods (12.3) are rotatably arranged between the fixing plates (12.4), a top ball (14) is elastically arranged on the inner side of the upper end of the connecting rod (12.3), and sliding holes for accommodating the sliding columns (12.2) are formed in the lower end of the connecting rod (12.3) along the length direction of the connecting rod (12.3).

5. The mixing tower segment lifting auxiliary device according to claim 4, wherein: the top ball (14) is arranged on the inner side of the upper end of the connecting rod (12.3) through an elastic telescopic rod (13), and the telescopic direction of the elastic telescopic rod (13) is perpendicular to the connecting rod (12.3).

6. The mixing tower segment lifting auxiliary device according to claim 1, wherein: be provided with first motor (3) up in support column (2), the last key joint of output shaft of first motor (3) has first conical gear (4), screw rod (6) in screw rod piece (7) department spiro union has the extension to in the mid hole of assembled platform (1), be provided with on assembled platform (1) with screw rod (6) parallel and with spacing (8) of screw rod piece (7) side laminating, the tip key joint of screw rod (6) have with second conical gear (5) of first conical gear (4) meshing.

7. The mixing tower segment lifting auxiliary device according to claim 6, wherein: two frame bars of positioning mechanism department are connected with and hold interior connecting block (15), outer connecting block (16) of screw rod (6) pivoted, spacing (8) are connected interior connecting block (15) outer connecting block (16), screw rod piece (7) remove in interior connecting block (15) between outer connecting block (16).