Device and method for hoisting equipment in concrete frame

Abstract

The invention discloses a device and a method for hoisting equipment in a concrete frame, the device comprises a centering assembly, the centering assembly comprises vertical rods which are parallel to each other and are located on each angular point of a regular polygon, each vertical rod is provided with a sliding sleeve capable of freely sliding along the vertical rod, and the adjacent vertical rods are connected through a scissor support. The shear fork support comprises two connecting rods, the middles of the two connecting rods are connected through a middle shaft hinge, one end of each connecting rod is rotationally connected with one of the two adjacent vertical rods through a positioning shaft hinge, the position of the positioning shaft hinge is fixed relative to the vertical rod, and the sliding sleeve is located above the positioning shaft hinge. The centering assembly which can be suspended in the cavity and can expand and deform is used for assisting centering of the upper cavity and the lower cavity, the upper cavity and the lower cavity can be conveniently taken out from a port of equipment through contraction deformation after centering is completed, centering precision is high, efficiency is high, and the construction period can be shortened easily.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of equipment hoisting, in particular to a device hoisting device and method in a concrete frame. BACKGROUND

[0002] Some large chemical, petrochemical devices or pressure vessel type equipment usually need to be installed on high concrete frame, and most of the equipment body is in the concrete frame, for example, rectifying tower, absorption tower, washing tower and other tower devices, or reactor, regenerator and other equipment, the main body is usually a large vertical cylindrical cavity structure, which has the characteristics of large diameter and high installation elevation.

[0003] In the construction and installation process, if the whole hoisting is used, the crane arm length requirement is very high, and the crane tonnage requirement is very large, and the site usually does not have the condition of super large crane station.

[0004] Therefore, the hoisting method combining positive installation and reverse installation is usually used, that is, the equipment is divided into upper and lower two cavity sections, the lower cavity section is first hoisted into the concrete frame, temporarily fixed, and then the lower cavity section is hoisted into the concrete frame, so that the ports of the upper and lower cavity sections are vertically centered, and then the two are connected into a whole by welding and other methods. However, the upper tower body in the suspended state is extremely unstable and shakes obviously, which brings difficulties to the centering, and usually requires setting guiding devices, positioning devices and other auxiliary equipment around the connection position of the upper and lower cavity sections, and cooperating with many workers to assist the crane to make the upper and lower cavity sections accurately centered, and then the auxiliary equipment is removed after the butt joint is completed.

[0005] Therefore, the auxiliary equipment needs to be set in the concrete frame in the early stage, and the auxiliary equipment needs to be removed after the butt joint is completed, which is easy to cause the construction period to be prolonged and other problems, and the concrete frame is usually only slightly larger than the equipment to be hoisted, which is not conducive to the setting of auxiliary equipment and the simultaneous work of too many workers, and is easy to cause poor centering accuracy and accidents. SUMMARY

[0006] To solve at least one of the above technical problems, on the one hand, the present application provides a device hoisting device in a concrete frame, which has high centering accuracy, high efficiency and is beneficial to shorten the construction period.

[0007] On the other hand, the present application also provides a hoisting method using the device hoisting device in the concrete frame.

[0008] The technical scheme adopted by the present application is that a concrete frame equipment hoisting device is designed for the butt joint of upper and lower cavities of equipment, and the device comprises a centering assembly, the centering assembly comprises vertical rods which are parallel to each other and are located at each corner point of a regular polygon, a sliding sleeve which can freely slide along the vertical rod is arranged on the vertical rod, adjacent vertical rods are connected through a scissor support, the scissor support comprises two connecting rods which are connected through a middle part shaft hinge in the middle part, one end of the connecting rod is rotationally connected with one of the two adjacent vertical rods through a positioning shaft hinge which is fixed relative to the vertical rod, and the sliding sleeve is located above the positioning shaft hinge; the other end of the connecting rod is rotationally connected with the sliding sleeve on the other of the two adjacent vertical rods through a hinge; the sliding sleeve moves along the vertical rod, so that all the vertical rods synchronously approach or move away from the center of the circumscribed circle of the regular polygon in the radial direction; and the device further comprises an adjusting mechanism for controlling the movement of the sliding sleeve relative to the positioning shaft hinge.

[0009] In some embodiments, the regular polygon is a regular hexagon.

[0010] In some embodiments, the adjusting mechanism comprises an upper pulling rope and a lower pulling rope, the lower pulling rope is connected with at least two symmetrical sliding sleeves, and the upper pulling rope is connected with at least two symmetrical middle part shaft hinges.

[0011] In some embodiments, the vertical rod is provided with a support end for supporting the inner wall of the cavity.

[0012] In some embodiments, the upper end of the vertical rod is fixedly connected with an upper inclined rod, and the lower end of the vertical rod is fixedly connected with a lower inclined rod; the support end is arranged at the end of the upper inclined rod and the lower inclined rod, so that the support end is inclined downward relative to the vertical rod.

[0013] In some embodiments, the upper end of the vertical rod is connected with the middle part of the upper inclined rod.

[0014] In some embodiments, the adjusting mechanism comprises a center rod located at the geometric center of the regular polygon, a plurality of parallel rods which are symmetrical relative to the center rod and parallel to the vertical rods, an upper support rod which is hingedly connected with the upper end of the vertical rod and the parallel rod, and a lower support rod which is hingedly connected with the lower end of the vertical rod and the parallel rod; the vertical rod, the parallel rod, the upper support rod and the lower support rod constitute a parallel four-bar mechanism; the adjusting mechanism further comprises an upper pulling rope and a lower pulling rope, the lower pulling rope is connected with at least two symmetrical sliding sleeves, and the upper pulling rope is connected with the center rod.

[0015] In some embodiments, in the radial direction, the outer end of the upper support rod and the lower support rod is provided with a support end for supporting the inner wall of the cavity.

[0016] In some embodiments, the support tip of the upper support rod end is a guide wheel, and the support tip of the lower support rod end is a fixed friction tip.

[0017] A device hoisting method using the device hoisting device in the concrete frame first drops the lower cavity into the concrete frame to be fixed, so that the upper end of the lower cavity is vertically upward; then the lower end of the hoisting device is located in the upper end of the lower cavity by internal support or suspension, so that the upper end of the hoisting device is located outside the upper end of the lower cavity, then the upper cavity is hoisted to the upper side of the lower cavity, then the upper cavity is lowered, so that the upper end of the hoisting device enters the lower end of the upper cavity, then the vertical rods move outward in the radial direction until all the vertical rods support the inner walls of the upper and lower cavities, at this time, it indicates that the upper and lower cavities are vertically opposite, then the upper cavity continues to move downward under the guidance of the hoisting device until the lower end port is connected with the upper end port of the lower cavity, and then the connection is welded and fixed.

[0018] Compared with the prior art, the present application has the following beneficial effects: The present application uses the centering assembly which can be expanded and deformed to assist the centering of the upper and lower two-part cavities suspended in the cavity, and after the centering is completed, it can be conveniently taken out from the port of the device after being deformed by contraction, the centering precision is high, the efficiency is fast, and it is beneficial to shorten the construction period. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be described in detail below with specific embodiments and drawings, in order to show details, facilitate understanding of its principles, which are not necessarily drawn to scale, and similar reference numerals can describe similar components in different views. The drawings generally show the embodiments discussed herein in an exemplary and non-limiting manner.

[0020] Wherein: Figure 1 is a perspective view of the centering assembly.

[0021] Figure 2 is a front view of the centering assembly.

[0022] Figure 3 is a top view of the centering assembly.

[0023] Figure 4 is Figure 3 A-A cross-sectional view of.

[0024] Figure 5 is a schematic view of the centering assembly after expansion.

[0025] Figure 6 is a schematic view of the centering assembly in the contracted state of embodiment one.

[0026] Figure 7 is a schematic view of the centering assembly of example one after expansion to center the upper and lower cavities.

[0027] Figure 8 is a schematic view of the centering assembly of example two in the cavities.

[0028] Figure 9 is a schematic view of the centering assembly of example two in the cavities. Figure 8 is a schematic view of the B-B section of

[0029] In the figure, 1 is a vertical rod; 2 is a connecting rod; 3 is a positioning shaft hinge; 4 is a sliding sleeve; 5 is a connecting plate; 6 is an upper pulling rope; 7 is a lower pulling rope; 8 is a lower cavity; 9 is an upper cavity; 10 is an upper inclined rod; 11 is a lower inclined rod; 12 is a support end; 13 is a central rod; 14 is a parallel rod; 15 is an upper support rod; 16 is a lower support rod; 17 is a guide wheel; 18 is a friction end; and 19 is a middle shaft hinge. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present application, and the technical solutions of the present application are further described in conjunction with the accompanying drawings, but the present application is not limited to these embodiments, and the following embodiments do not limit the invention involved in the claims. In addition, all combinations of the features described in the embodiments are not necessarily required by the solutions of the invention.

[0031] The principles and structures of the present application are described in detail below in conjunction with the accompanying drawings and examples.

[0032] Example One As shown in Figures 1-7 , a concrete frame equipment hoisting device for the butt joint of an upper and lower cavity 8 of equipment. The hoisting device comprises a centering assembly, which comprises mutually parallel vertical rods 1 located at each corner point of a regular polygon, the regular polygon in this embodiment being a regular hexagon, but it can also be other regular polygons. The vertical rods 1 are provided with sliding sleeves 4 that can freely slide along the vertical rods 1, adjacent vertical rods 1 are connected by a scissors support, and the scissors support comprises two connecting rods 2, which are connected by a middle shaft hinge 19.

[0033] One end of the connecting rod 2 is rotationally connected to one of the two adjacent vertical rods 1 by a positioning shaft hinge 3 whose position is fixed relative to the vertical rod 1, and the sliding sleeve 4 is located above the positioning shaft hinge 3, i.e. the positioning shaft hinge 3 is axially fixed in position relative to the vertical rod 1, while the sliding sleeve 4 is axially movable along the vertical rod 1; the other end of the connecting rod 2 is rotationally connected to the sliding sleeve 4 on the other of the two adjacent vertical rods 1 by a hinge; if the centering assembly is regarded as a structure similar to a hexagonal prism, the vertical rods 1 correspond to the six side edges of the hexagonal prism, and the scissors support is located on the six side faces of the hexagonal prism.

[0034] All vertical rods 1 are of the same shape, all connecting rods 2 are of the same shape, and all positioning shaft hinges 3 are of the same height, i.e. located on the same plane of the vertical rods 1, so that when the sliding sleeve 4 moves along the vertical rods 1, all the vertical rods 1 are synchronously close to or away from the center of the circumscribed circle of the regular hexagon (i.e. the geometric center) in the radial direction of the circumscribed circle, and the vertical rods 1 substantially remain upright during the movement, realizing the radial expansion or contraction of the entire centering assembly.

[0035] Connecting plates 5 with a sixty-degree bend can be provided on the sliding sleeve 4 and the positioning shaft hinge 3, respectively, for rotating the end of the connecting rod 2.

[0036] The adjusting mechanism for controlling the movement of the sliding sleeve 4 relative to the positioning shaft hinge 3 is also included, for example, the adjusting mechanism can be a telescopic rod connected between two vertical rods 1 or a telescopic rod connected between the sliding sleeve 4 and the positioning shaft hinge 3. The telescopic rod can be, for example, a pneumatic cylinder, an electric cylinder or a hydraulic cylinder, etc., but such telescopic rods need to be connected to the gas supply or electric or liquid supply equipment, which is relatively troublesome. Therefore, the adjusting mechanism of the present embodiment includes an upper pull rope 6 and a lower pull rope 7, the lower pull rope 7 is connected to at least two symmetrical sliding sleeves 4, and the upper pull rope 6 is connected to at least two symmetrical positioning shaft hinges 19. When the distance between the vertical rods 1 needs to be increased, the upper pull rope 6 can be pulled by a crane, and the lower pull rope 7 can be pulled by a ground winch, so that the sliding sleeve 4 is close to the positioning shaft hinge 3, thereby expanding the radial direction of the centering assembly, and when the radial direction of the centering assembly needs to be contracted, the lower pull rope 7 can be released to release the downward pulling of the sliding sleeve 4, at this time, under the tendency of the device's own center of gravity moving downward, the vertical rods 1 are close to each other, i.e. the radial direction of the centering assembly is contracted.

[0037] When the device is hoisted, first, the lower cavity 8 is dropped into the concrete frame to be fixed, so that the upper end of the lower cavity 8 is vertically upward; then the lower end of the hoisting device is located in the upper end of the lower cavity 8 by internal support or suspension, so that the upper end of the hoisting device is located outside the upper end of the lower cavity 8, then the upper cavity 9 is hoisted above the lower cavity 8, then the upper cavity 9 is lowered, so that the upper end of the hoisting device enters the lower end of the upper cavity 9, then the vertical rod 1 moves outward in the radial direction until all the vertical rods 1 support the inner walls of the upper and lower cavities 8, at this time, the upper and lower cavities 8 are vertically opposite, then the upper cavity 9 continues to move downward under the guidance of the hoisting device until the lower end is connected with the upper end of the lower cavity 8, then the connection is welded and fixed to complete the hoisting. After the hoisting is completed, the radial contraction of the centering assembly can be reduced, so that the upper pulling rope 6 is hoisted out of the upper end of the device or the device is lowered to the ground below the lower end of the device, realizing the taking out of the device, the centering accuracy is high, the efficiency is fast, and the construction period is shortened.

[0038] The vertical rod 1 is provided with a support end head 12 for supporting the inner wall of the cavity, and the support end heads 12 are located on the same circle in the circumferential direction. The upper end of the vertical rod 1 of the embodiment is fixedly connected with the upper inclined rod 10, and the lower end of the vertical rod 1 is fixedly connected with the lower inclined rod 11; the support end head 12 is arranged at the end of the upper inclined rod 10 and the lower inclined rod 11, so that the support end head 12 is inclined downward relative to the vertical rod 1, improving the downward supporting force. The upper end of the vertical rod 1 is connected with the middle part of the upper inclined rod 10, so that the upper inclined rod 10 has a rod segment inclined upward relative to the center, thereby providing guidance for the device to enter the upper cavity 9. Therefore, during hoisting, the support end head 12 of the lower inclined rod 11 can be first supported on the inner wall of the lower cavity 8, and then the entire device is sleeved to realize centering under the guidance of the upper inclined rod 10.

[0039] Embodiment two As Figure 8 , 9As shown, the adjusting mechanism of the embodiment comprises a center rod 13 located at the geometric center of the regular hexagon, a plurality of parallel rods 14 symmetrically arranged with respect to the center rod 13 and parallel to the vertical rods 1, an upper support rod 15 hingedly connected to the upper ends of the vertical rods 1 and the parallel rods 14, and a lower support rod 16 hingedly connected to the lower ends of the vertical rods 1 and the parallel rods 14; the vertical rods 1, the parallel rods 14, the upper support rod 15 and the lower support rod 16 constitute a parallel four-bar mechanism; further comprising an upper pulling rope 6 and a lower pulling rope 7, the lower pulling rope 7 being connected to at least two symmetric slide sleeves 4, and the upper pulling rope 6 being connected to the center rod 13; thus, not only can the device be controlled to shrink or expand by pulling the upper pulling rope 6 and the lower pulling rope 7 as in the first embodiment, but the upper support rod 15 also guides the movement of the upper cavity 9, i.e. the lower end of the upper cavity 9 can slide downward along the upper support rod 15 after contacting the upper support rod 15, so that the axis of the upper cavity 9 moves to the center rod 13, so that the upper cavity 9 and the lower cavity 8 are coaxial, i.e. the upper and lower cavities 8 are centered.

[0040] In the radial direction, the outer ends of the upper support rod 15 and the lower support rod 16 are provided with support end heads 12 for supporting the inner walls of the cavities, i.e. the support end heads 12 of the embodiment are provided on the ends of the upper and lower support rods 16. As a priority, the support end head 12 at the end of the upper support rod 15 can be a guide wheel 17 to facilitate the guidance of the upward and downward movement of the upper cavity 9, and the support end head 12 at the end of the lower support rod 16 is a fixed friction end head 18, e.g. a rubber block with good friction, to facilitate the support and positioning with respect to the lower cavity 8.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A concrete frame in equipment hoisting device for the docking of equipment upper and lower cavities, characterized by, The centering assembly comprises mutually parallel vertical rods located at each corner point of a regular polygon, a sliding sleeve is arranged on each vertical rod and can freely slide along the vertical rod, adjacent vertical rods are connected by a scissors support, the scissors support comprises two connecting rods which are hingedly connected by a middle shaft, one end of each connecting rod is hingedly connected to one of the two adjacent vertical rods by a positioning shaft hinge, the sliding sleeve is located above the positioning shaft hinge, the other end of each connecting rod is hingedly connected to the sliding sleeve on the other of the two adjacent vertical rods, the sliding sleeve moves along the vertical rod so that all the vertical rods synchronously approach or move away from the center of the circumscribed circle of the regular polygon in the radial direction, and an adjusting mechanism is arranged to control the movement of the sliding sleeve relative to the positioning shaft hinge.

2. The concrete frame-in-device hoist of claim 1, wherein, The regular polygon is a regular hexagon.

3. The concrete frame-in-device hoist of claim 1, wherein, The adjusting mechanism comprises an upper pulling rope and a lower pulling rope, the lower pulling rope is connected to at least two symmetrical sliding sleeves, and the upper pulling rope is connected to at least two symmetrical middle shaft hinges.

4. The concrete frame-in-device hoist of claim 3, wherein, A support end is arranged on the vertical rod to support the inner wall of the cavity.

5. A concrete frame-in-device hoist apparatus as claimed in claim 4, wherein, An upper inclined rod is fixedly connected to the upper end of the vertical rod, and a lower inclined rod is fixedly connected to the lower end of the vertical rod, the support end is arranged at the end of the upper inclined rod and the lower inclined rod, so that the support end is inclined downward relative to the vertical rod.

6. A concrete frame-in-device hoist apparatus as claimed in claim 5, wherein, The upper end of the vertical rod is connected to the middle part of the upper inclined rod.

7. The concrete frame-in-device hoist of claim 1, wherein, The adjusting mechanism comprises a central rod located at the geometric center of the regular polygon, a plurality of parallel rods which are symmetrical about the central rod and parallel to the vertical rods, an upper support rod which is hingedly connected to the upper end of the vertical rods and the parallel rods, and a lower support rod which is hingedly connected to the lower end of the vertical rods and the parallel rods, the vertical rods, the parallel rods, the upper support rod and the lower support rod form a parallel four-bar mechanism, and the adjusting mechanism comprises an upper pulling rope and a lower pulling rope, the lower pulling rope is connected to at least two symmetrical sliding sleeves, and the upper pulling rope is connected to the central rod.

8. The concrete frame-in-device hoist of claim 7, wherein, In the radial direction, the outer end of the upper support rod and the lower support rod is provided with a support end for supporting the inner wall of the cavity.

9. A concrete frame-in-device hoist apparatus according to claim 8, wherein, The support end at the end of the upper support rod is a guide wheel, and the support end at the end of the lower support rod is a fixed friction end.

10. A method of hoisting equipment using the equipment hoisting device according to any one of claims 1 to 9, characterized by, Firstly, the lower cavity is fixed in the concrete frame so that the upper end of the lower cavity is vertically upward, then the lower end of the hoisting device is located in the upper end of the lower cavity by internal support or suspension, the upper end of the hoisting device is located outside the upper end of the lower cavity, the upper cavity is hoisted above the lower cavity, the upper cavity is lowered so that the upper end of the hoisting device enters the lower end of the upper cavity, then the vertical rods move outward in the radial direction until all the vertical rods support the inner walls of the upper and lower cavities, at this time, the upper and lower cavities are vertically opposite, then the upper cavity continues to move downward under the guidance of the hoisting device until the lower end is connected with the upper end of the lower cavity, and then the connection is welded and fixed.

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