CN114590571A - Combined replacement unloading device and unloading method - Google Patents
Combined replacement unloading device and unloading method Download PDFInfo
- Publication number
- CN114590571A CN114590571A CN202210274540.3A CN202210274540A CN114590571A CN 114590571 A CN114590571 A CN 114590571A CN 202210274540 A CN202210274540 A CN 202210274540A CN 114590571 A CN114590571 A CN 114590571A
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- unloading
- support
- steel
- jacking mechanism
- supporting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
Abstract
The invention relates to the technical field of steel mesh frame construction, and particularly discloses a combined replacement unloading device and an unloading method, which are used for unloading steel mesh frame ball nodes, wherein the device comprises a supporting platform, a jacking mechanism arranged on the supporting platform, and a supporting frame arranged on the supporting platform and connected with the output end of the jacking mechanism; and one end of the supporting framework, which is far away from the supporting platform, is connected with the ball joint. The unloading method specifically comprises the following steps: designing a section steel lattice column; the section steel lattice column is arranged with the support platform; mounting a support disc; the jacking mechanism is mounted with the gasket piece; the whole thickness of the gasket piece is X +5mm when the gasket piece is not jacked, wherein X is the simulated unloading amount; the secondary support and the main support are arranged; hoisting a steel net rack, namely hoisting the steel net rack and the main support; and unloading until unloading is completed. The invention has fast unloading speed and high efficiency, does not relate to cutting construction, and greatly improves the construction safety; the application range is wide.
Description
Technical Field
The invention relates to the technical field of steel net rack unloading, in particular to a combined replacement unloading device and an unloading method.
Background
In the construction of large-span steel mesh frame, often with a plurality of piecemeal units of rack, assemble in the piecemeal unit on ground, set up support frame and uninstallation device at the angular point of piecemeal unit mounted position, recycle hoisting machinery and hoist and mount to the support frame on, connect each piecemeal unit for whole steel mesh frame, utilize the uninstallation device of strong point to uninstall at last, make whole steel mesh frame get into the design condition. At present, a plate cutting unloading method is commonly adopted by an unloading device, namely adjusting plates of steel plates are installed at two sides of a supporting point, a jack is installed in the middle of the supporting point, the structure is lifted upwards by a certain distance by the jack during unloading, then the adjusting plates with certain lengths are cut by a steel plate cutting machine, the jack is fallen back, and when the structure is deformed and the internal force is stable, cutting and unloading are carried out at the position, and the adjusting plates are sequentially unloaded to the designed installation position in a reciprocating mode.
In the unloading process, the steel plate needs to be cut for many times, and the jack can fall back only after the temperature of the steel plate is reduced in each cutting process, so that the unloading speed is very slow; in addition, the cutting process adopts the related power utilization, so that potential safety hazards exist; the steel plate cutting needs professional operation, and the suitability is low.
Disclosure of Invention
The invention aims to provide a combined replacement unloading device and an unloading method.
The technical problem to be solved by the invention is as follows:
on one hand:
a combined replacement unloading device is used for unloading a steel net rack ball joint and comprises a supporting platform, a jacking mechanism and a supporting framework, wherein the jacking mechanism is arranged on the supporting platform;
and one end of the support framework, which is far away from the support platform, is connected with the ball joint.
In some of the possible embodiments, the first and second,
the supporting framework comprises a plurality of secondary supports arranged on the supporting platform, a main support connected with the output end of the jacking mechanism, and a cross beam used for connecting the secondary supports and the main support.
In some of the possible embodiments, the first and second,
the secondary supports are arranged on the outer side of the jacking mechanism and form an annular structure, and the axis of the secondary supports is coaxial with the axis of the jacking mechanism.
In some of the possible embodiments, the first and second,
the supporting platform is also provided with a steel gasket unit for supporting the secondary support; the steel gasket units are arranged in a plurality of groups in one-to-one correspondence with the secondary supports, and each group of steel gasket units comprises gasket pieces which are different in thickness and are sequentially stacked on the supporting platform from top to bottom.
In some of the possible embodiments, the first and second,
and a supporting tray for mounting the steel gasket unit is also arranged on the supporting platform.
In some of the possible embodiments, the first and second,
the main support is on the same straight line with the sphere center of the sphere joint along the vertical axis;
the main support comprises a steel pipe and a support arranged on one side, far away from the supporting platform, of the steel pipe; one end of the support, which is far away from the steel pipe, is provided with an arc-shaped groove, and the circle center of the arc-shaped groove is on the same straight line with the axis of the steel pipe.
In some of the possible embodiments, the first and second,
the supporting platform comprises a section steel lattice column and a supporting platform arranged on the section steel lattice column.
In some of the possible embodiments, the first and second,
the supporting tray is of a cross structure and is arranged on the supporting platform;
the jacking mechanism is arranged in the center of the support platform; the four groups of secondary supports are respectively arranged on the cross-shaped structure and are equal to the distance between the jacking mechanisms.
On the other hand:
an unloading method of a combined replacement unloading device specifically comprises the following steps:
designing a section steel lattice column;
the section steel lattice column is arranged with the support platform;
mounting a support disc;
the jacking mechanism is mounted with the gasket piece; the whole thickness of the gasket piece is X +5mm when the gasket piece is not jacked, wherein X is the simulated unloading amount;
the secondary support and the main support are arranged;
hoisting a steel net rack, namely hoisting the steel net rack and the main support;
and unloading until unloading is completed.
In some of the possible embodiments, the first and second,
the unloading specifically comprises the following steps:
jacking the jacking mechanism; after the steel net frame is hoisted, the jacking mechanism jacks to separate the bottom of the secondary support from the steel gasket unit;
and replacing the steel gasket unit with the same thickness according to the simulated unloading amount, wherein the first unloading is not more than 10 mm.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the replacement of the gasket piece does not need to fire to cut the steel plate, the combined gasket with the thickness corresponding to the unloading amount is directly taken out, and the unloading speed is high;
the invention replaces the supports with different radians through the bolt connection points, and is suitable for ball joints with different sizes; or whether the support is applied or not, the support is not used, the steel mesh frame with flat supporting points is suitable, and different forms of steel mesh frames are used;
the invention can be repeatedly used, and the construction cost is reduced; the supporting tray and the supporting platform are detached, and the support is replaced by using the supporting seat, so that the device can be repeatedly used, the construction cost is reduced, and the green construction requirement is met;
according to the invention, the supporting tray is matched with the positioning column through the positioning hole, so that the supporting tray can be rapidly installed; the main support and the support are connected by bolts, so that the installation and the disassembly are rapid; the secondary support is directly placed in the mounting groove formed by the gasket piece and the short angle steel, positioning is not needed, and mounting efficiency is high;
the arc groove arranged on the support has the same radian as the spherical node, the spherical node of the steel net frame is placed in the support and directly slides to the lowest point, and the steel net frame is installed in place, so that the installation efficiency is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the support frame of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a state diagram of the present invention in use;
FIG. 5 is a schematic diagram of the position relationship of the middle support tray, the spacer member and the jacking mechanism according to the present invention;
wherein: 1. a support platform; 11. a support tray; 111. short angle steel; 2. a jacking mechanism; 3. a support frame; 31. secondary support; 32. a main support; 321. a steel pipe; 322. a support; 4. a steel shim unit; 10. a steel net frame; 101. and (4) a ball node.
Detailed Description
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. Reference herein to "first," "second," and similar words, does not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. In the implementation of the present application, "and/or" describes an association relationship of associated objects, which means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of the present application, the meaning of "a plurality" means two or more unless otherwise specified. For example, the plurality of positioning posts refers to two or more positioning posts. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The present invention will be described in detail below.
As shown in fig. 1-5:
on one hand:
a combined replacement unloading device is used for unloading a steel mesh frame ball joint 101 and comprises a supporting platform 1, a jacking mechanism 2 arranged on the supporting platform 1, a supporting framework 3 arranged on the supporting platform 1 and connected with the output end of the jacking mechanism 2, and a steel gasket unit 4 arranged between the supporting framework 3 and the supporting platform 1; the steel gasket unit 4 includes a plurality of gasket members having different thicknesses and stacked in order from top to bottom.
The end of the support frame 3 away from the support platform 1 is connected to the ball joint 101.
The supporting framework 3 is connected with the ball joint 101, the jacking mechanism 2 is connected with one side of the supporting framework 3, which is far away from the ball joint 101, and the gasket piece is arranged on the supporting platform 1 and used for supporting the supporting framework 3; when unloading is carried out, the output end of the jacking mechanism 2 moves upwards along the vertical direction, so that the supporting framework 3 moves to one side far away from the steel gasket unit 4, and the steel gasket unit 4 is separated from the supporting framework; replacing the gasket pieces with the same thickness according to the simulated unloading amount, and taking out 1 gasket piece with 10mm according to the unloading modulus such as unloading 8mm, putting in 1 steel gasket unit 4 with 2mm, or respectively taking out 1 steel gasket unit 4 with 1mm, 2mm and 5 mm; and repeating the unloading process to finish unloading.
In some possible embodiments, in order to effectively realize the connection of the support framework 3 with the ball joint 101, the jacking mechanism 2 and the support platform 1;
the supporting frame 3 includes a plurality of sub-brackets 31 provided on the supporting platform 1, a main bracket 32 connected to an output end of the jacking mechanism 2, and a cross member for connecting the sub-brackets 31 and the main bracket 32.
In some possible embodiments, to ensure that the support member is evenly stressed when lifted, thereby making the ball joint 101 evenly stressed;
the plurality of secondary brackets 31 are disposed outside the jacking mechanism 2, and form an annular structure, and the axis of the annular structure is coaxial with the axis of the jacking mechanism 2.
The steel gasket units 4 are arranged in a plurality of groups in one-to-one correspondence with the secondary supports, and each group of steel gasket units 4 comprises gasket pieces which are different in thickness and are sequentially stacked on the supporting platform 1 from top to bottom.
In some possible embodiments, in order to effectively realize the installation of the steel gasket unit 4, the installation position of the steel gasket unit 4 is positioned;
and a supporting tray 11 for mounting the steel gasket unit 4 is also arranged on the supporting platform 1.
Preferably, the supporting tray 11 is provided with a positioning hole, the supporting platform 1 is provided with a positioning column which is matched with the positioning hole, and the length of the positioning column is equal to the thickness of the supporting tray 11; this effectively realizes positioning and mounting of the holding tray 11.
The supporting tray 11 is used for fixing the positions of the steel gasket unit 4 and the jacking mechanism 2;
preferably, the bracket tray 11 is provided with a short angle steel 111 for limiting the position of the spacer and the jacking mechanism 2; the short angle steel 111 is welded to the support tray 11.
In some possible embodiments, to effectively ensure offloading to ball node 101;
the main support 32 is on the same straight line with the center of the ball joint 101 along the vertical axis;
the main support 32 comprises a steel pipe 321 and a support 322 arranged on one side of the steel pipe 321 far away from the support platform 1; one end of the support 322, which is far away from the steel pipe 321, is provided with an arc-shaped groove, and the circle center of the arc-shaped groove is on the same straight line with the axis of the steel pipe 321.
The arc-shaped side of the support 322 far away from the steel pipe 321 is provided, and the opening of the arc-shaped side is arranged on the side far away from the steel pipe 321, so that the support 322 can be effectively ensured to be completely matched and connected with the ball joint 101;
further, the diameter of the circular arc-shaped groove is matched with the diameter of the ball joint 101.
In some of the possible embodiments, the first and second,
the supporting platform 1 comprises a section steel lattice column and a supporting platform arranged on the section steel lattice column.
In some of the possible embodiments, the first and second,
the supporting tray 11 is of a cross structure and is arranged on the supporting platform;
preferably, the positioning hole is arranged in the center of the cross-shaped structure.
The jacking mechanism 2 is installed at the center of the support platform and fixed through short angle steel 111, and the steel gasket units 4 are installed on four branches of the cross structure and fixed through the short angle steel 111; the four secondary supports 31 are respectively arranged on the cross structure and have the same distance with the jacking mechanism 2.
The spacer member and its corresponding short angle 111 form a mounting groove for the mounting of the secondary bracket 31, which eliminates the need for positioning the secondary bracket 31.
Preferably, the spacer member is a rectangular structure, is mounted on the supporting tray 11 and is positioned by a short angle steel 111; the spacer member may be 1mm, 2mm, 5mm, 10mm thick.
When the spacer is rectangular, the short angle steel 111 corresponding to the spacer will be located on three sides of the spacer to form a U-shaped structure, and the spacer can be installed into the U-shaped structure through the opening, preferably, the opening is located on the side away from the main bracket 32.
Furthermore, the jacking mechanism 2 is mainly used for controlling the supporting framework 3 to move vertically, and can be realized by adopting a jack, a hydraulic cylinder, an air cylinder and other equipment; in the present invention, a jack is preferably used.
On the other hand:
an unloading method of a combined replacement unloading device specifically comprises the following steps:
designing a section steel lattice column; the nodes of the section steel lattice column are welded, simulation calculation is carried out by adopting finite element software according to the vertical force of a supporting point, the stress ratio and the displacement of each component are calculated, the calculated values simultaneously meet the 1/250 requirements that the stress ratio is less than 1 and the maximum displacement is less than the height of the supporting frame, and the strength, the stability and the displacement control of the supporting frame meet the requirements;
the section steel lattice column is arranged with the support platform;
the steel lattice column is formed by splicing and welding according to the design of the steel lattice column, a supporting table on the top of the steel lattice column is also formed by welding at the same time, and the top surface of the supporting table is ensured to be a horizontal plane during installation, namely, the elevations of all points on the top surface are consistent; and hoisting the structure to the supporting point of the steel truss 10 by adopting hoisting.
Mounting a supporting tray 11; when the support tray 11 is installed, the positioning holes of the support tray 11 are aligned with the positioning columns and are put down, the horizontal condition of the support tray 11 is checked, and the support tray 11 is welded with the support platform 1 after the horizontal condition is determined.
Marking the center of a supporting point of a steel tapping net rack 10 on a supporting table, and welding a positioning column with the size of a positioning hole of a supporting tray 11;
when the supporting tray 11 is installed, the positioning holes of the supporting tray 11 are put down relative to the positioning columns, the horizontal condition of the supporting tray 11 is checked, and the supporting tray 11 is welded with the supporting platform 1 after the horizontal condition is determined.
The jacking mechanism 2 is installed with the steel gasket unit 4;
the gasket piece and the jacking mechanism 2 are respectively placed in the short angle steel 111 corresponding to the support tray 11; when not jacked, the thickness of the gasket member mounted on the supporting tray 11 is X +5mm, where X is the simulated unloading amount;
the gasket piece is processed into a plurality of thicknesses of 1mm, 2mm, 5mm and 10mm, the initial placement thickness of the gasket piece is the supporting point simulated unloading amount plus 5mm, and the supporting point can be ensured to be emptied after final unloading;
if the unloading amount of the supporting point of the steel net rack 10 is 43mm, a gasket piece with the thickness of 48mm needs to be placed under the secondary support 31, namely 4 gasket pieces with the thickness of 10mm, 1 gasket piece with the thickness of 5mm, 1 gasket piece with the thickness of 2mm, 1 gasket piece with the thickness of 1mm can be placed, and the total number of the gasket pieces is 7, and other gasket pieces can be combined.
The secondary support 31 and the main support 32 are arranged; hoisting the steel net rack 10 on the main support 32; placing secondary support 31 directly on the spacer member; selecting different radian supports 322 according to different steel net racks 10, for example, selecting the support 322 with the radian corresponding to different spherical nodes 101, wherein the support 322 is fixedly connected with the main support 32 through bolts; for non-radian structures such as steel beams, the main support 32 is directly used for supporting without the support 322.
Hoisting the steel net rack 10; hoisting is carried out according to the installation scheme of the steel net rack 10, and the steel net rack 10 is hoisted on the main support 32.
And unloading until unloading is completed.
In some of the possible embodiments, the first and second,
the unloading specifically comprises the following steps:
the jacking mechanism 2 jacks back; after the steel net rack 10 is hoisted, the jacking mechanism 2 jacks to separate the bottom of the secondary support 31 from the steel gasket unit 4;
replacing the steel gasket unit 4 with the same thickness according to the simulated unloading amount; if 8mm is required to be unloaded, 1 gasket piece with 10mm can be taken out and put into 1 gasket piece with 2mm, or 1 gasket piece with 1mm, 2mm and 5mm can be respectively taken out.
Wherein the first unloading does not exceed 10 mm.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. A combined replacement unloading device is used for unloading a steel net rack ball joint and is characterized by comprising a supporting platform, a jacking mechanism and a supporting framework, wherein the jacking mechanism is installed on the supporting platform;
and one end of the support framework, which is far away from the support platform, is connected with the ball joint.
2. The combination displacement unloading apparatus of claim 1, wherein the support frame comprises a plurality of secondary lugs disposed on the support platform, a primary lug connected to the output end of the jacking mechanism, and a cross member connecting the secondary lugs to the primary lug.
3. The apparatus according to claim 2, wherein a plurality of said secondary supports are disposed outside the jacking mechanism and form a ring structure having an axis coaxial with the axis of the jacking mechanism.
4. A combined displacement unloading device according to claim 2, wherein a steel shim unit for supporting the secondary rest is further provided on the support platform; the steel gasket units are arranged in a plurality of groups in one-to-one correspondence with the secondary supports, and each group of steel gasket units comprises gasket pieces which are different in thickness and are sequentially stacked on the supporting platform from top to bottom.
5. A combined displacement unloading device according to claim 4, characterised in that a holding tray for mounting steel shim units is also provided on the support platform.
6. A combined displacement unloading device according to any of claims 2-5, characterised in that the main lug is in line with the centre of the ball joint along a vertical axis;
the main support comprises a steel pipe and a support arranged on one side of the steel pipe, which is far away from the supporting platform; one end of the support, which is far away from the steel pipe, is provided with an arc-shaped groove, and the circle center of the arc-shaped groove is on the same straight line with the axis of the steel pipe.
7. A combined displacement unloading device according to claim 6, characterised in that the support platform comprises a section steel lattice column and a support platform mounted on the section steel lattice column.
8. The modular displacement unloader of claim 7, wherein said support tray is of a cruciform configuration and is mounted on said support base;
the jacking mechanism is arranged in the center of the supporting platform; the four groups of secondary supports are respectively arranged on the cross-shaped structure and are equal to the distance between the jacking mechanisms.
9. Unloading method of a combined displacement unloading device according to any of claims 1-8, characterized in that it comprises the following steps:
designing a section steel lattice column;
the section steel lattice column is arranged with the support platform;
mounting a support disc;
the jacking mechanism is installed with the steel gasket unit;
the secondary support and the main support are arranged;
hoisting a steel net rack, namely hoisting the steel net rack and the main support;
and unloading until unloading is completed.
10. Unloading method of a combined displacement unloading device according to claim 9,
the unloading specifically comprises the following steps:
jacking the jacking mechanism; after the steel net frame is hoisted, the jacking mechanism jacks to separate the bottom of the secondary support from the steel gasket unit;
and replacing the steel gasket unit with the same thickness according to the simulated unloading amount, wherein the first unloading amount is not more than 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210274540.3A CN114590571A (en) | 2022-03-21 | 2022-03-21 | Combined replacement unloading device and unloading method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210274540.3A CN114590571A (en) | 2022-03-21 | 2022-03-21 | Combined replacement unloading device and unloading method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114590571A true CN114590571A (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210274540.3A Pending CN114590571A (en) | 2022-03-21 | 2022-03-21 | Combined replacement unloading device and unloading method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059312A (en) * | 2022-07-06 | 2022-09-16 | 中国五冶集团有限公司 | Tool suitable for positioning, installing and unloading large steel structure and construction method |
-
2022
- 2022-03-21 CN CN202210274540.3A patent/CN114590571A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059312A (en) * | 2022-07-06 | 2022-09-16 | 中国五冶集团有限公司 | Tool suitable for positioning, installing and unloading large steel structure and construction method |
| WO2024007866A1 (en) * | 2022-07-06 | 2024-01-11 | 中国五冶集团有限公司 | Tool suitable for positioning, mounting and unloading large steel structure, and construction method |
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