A main boom bottom support device

Abstract

This invention discloses a main mast bottom support device, belonging to the technical field of auxiliary equipment for high-voltage tower erection. It includes: a main mast, a universal ball joint support, a support plate, a lower hinge seat, an upper hinge seat, an upper connecting plate, and a support steel pipe. The two ends of the universal ball joint support are bolted to the main mast and the support plate, respectively. The support plate connects the various devices and supports the main mast. The lower hinge seat connects the support plate and one end of the support steel pipe. The other end of the support steel pipe is connected to the upper hinge seat via the upper connecting plate. The upper hinge seat is fixed to the square partition surface of the goblet-shaped tower. This invention primarily uses four support steel pipes to bear the tension from the main mast's own weight and its suspended load. When the main mast is lifted upwards, the main mast bottom support device can retract and rise along with the main mast, providing more stable and reliable support for the main mast during hoisting operations and offering better safety assurance for the overall construction of the goblet-shaped tower.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology for high-voltage tower erection, specifically a main mast bottom support device. Background Technology

[0002] During the construction of power transmission line foundations in high-altitude mountainous areas, the main support pole may become unstable due to factors such as strong winds, excessive hoisting height, and excessive weight of the hoisted object. This poses a significant safety hazard to the workers on site.

[0003] In traditional methods, when a steel tower is erected to a certain height, the main mast needs to be lifted. After the mast is lifted to a certain height, it is supported by waist rings and supporting ropes. This support method is no longer suitable for the erection of large steel towers in high-altitude areas. Therefore, it is necessary to invent a support device that can maintain the stability of the main mast during hoisting operations at a certain height and can be used when erecting steel towers of different heights. Summary of the Invention

[0004] The purpose of this invention is to provide a main support device at the bottom of the main support pole to solve the problems of main support stability and tower shape self-adaptation mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a main pole bottom support device, the main pole bottom support device comprising: a main pole, a support plate, a universal ball joint support, an upper connecting plate, an upper hinge seat, a support steel pipe and a lower hinge seat, wherein the two end faces of the universal ball joint support are respectively bolted to and fixed to the main pole and the support plate, and the support plate serves to connect the various devices and bear the main pole;

[0006] The lower hinge seat connects one end of the support plate and the support steel pipe, and the other end of the support steel pipe is connected to the upper hinge seat through the upper connecting plate. The upper hinge seat is fixed on the square partition surface of the goblet-shaped iron tower.

[0007] The universal ball joint support includes an upper connecting plate, a ball joint support column, a ball joint reinforcing rib, an elliptical ball head, a lower connecting plate, a square support, a connecting steel plate, and a support reinforcing rib. The upper connecting plate is welded to the ball joint support column. Four ball joint reinforcing ribs are welded to the side of the ball joint support column. An elliptical ball head is welded to the lower end of the ball joint support column and is installed inside the square support. The square support is divided into two parts, left and right, each with a support reinforcing rib welded to its side. After the elliptical ball head is installed into the square support, the two square supports are connected and fixed with screws via the connecting steel plate. Then, the upper connecting plate of the universal ball joint support is bolted to the pole cap of the main support rod, and the lower connecting plate is bolted to the support plate.

[0008] The universal ball joint support can adaptively rotate the elliptical ball head to bear the load in the event of a slight offset of the main strut.

[0009] The support plate is composed of two upper and lower petal-shaped steel plates holding a cross support frame. The cross support frame is welded from multiple square steel pipes. Bolt connection holes are opened on the cross support frame and the upper and lower petal-shaped steel plates. After positioning with bolts, it is welded and fixed.

[0010] The lower hinge seat includes a lower hinge joint, a lower hinge shank, and a lower hinge pin. The shank end of the lower hinge joint is installed in the square steel tube of the support plate and fixed with bolts. A through hole is opened at the other end of the lower hinge joint for installing the lower hinge pin. The shank end of the lower hinge shank is connected to the support steel tube with a pin. A through hole is also opened at the other end of the lower hinge shank. The lower hinge pin passes through the through holes of the lower hinge joint and the lower hinge shank to hinge the two together.

[0011] The supporting steel pipe includes a square supporting pipe, reinforcing steel plates, a square tube pin, and an upper hinged long handle. The square supporting pipe is a square steel pipe with three evenly distributed through holes on each of its two ends. There are four reinforcing steel plates, each in the shape of a cuboid, with three evenly distributed through holes on each plate. The reinforcing steel plates are welded to the two ends of the square supporting pipe, with the through holes corresponding one-to-one. The square tube pin passes through the aforementioned through holes, connecting and fixing the square supporting pipe to the lower hinged long handle and the upper hinged long handle.

[0012] The connection process between the square tube pin and the lower hinged long handle and the upper hinged long handle is a hot riveting process to ensure that all three square tube pins are interference-fitted; a weld is required at the connection interface between the square tube pin and the lower hinged long handle and the upper hinged long handle.

[0013] The angle between the supporting steel pipe and the horizontal plane is 35°.

[0014] The upper connecting plate includes a hinged steel plate and an upper hinge pin. The hinged steel plate is a pair of rectangular steel plates with two through holes. The upper hinge pin passes through the through holes of the hinged steel plate, the upper hinged long handle, and the upper hinged vertical plate to complete the hinged fixation.

[0015] The upper hinge seat includes an upper hinge vertical plate, an upper hinge rib plate, and an upper hinge bottom plate. The upper hinge vertical plate has a through hole for hinge. The upper hinge rib plate is welded to both sides of the upper hinge vertical plate to enhance the connection strength of the upper hinge vertical plate. The upper hinge vertical plate and the upper hinge rib plate are welded to the upper hinge bottom plate. The upper hinge bottom plate has a bolt guide groove. The upper hinge seat can move a certain distance along the guide groove to facilitate the assembly of the main support rod bottom support device onto the square partition.

[0016] The positional accuracy of the hinge through hole of the upper hinged vertical plate on the square partition surface determines the degree of stress distribution of the main support device at the bottom of the main pole.

[0017] In the aforementioned main support device for the bottom of the mast, all bolted parts use a double-nut anti-loosening structure; and the hinged parts are locked with cotter pins.

[0018] The bottom support device of the main gantry can be lifted together with the main gantry. When the main gantry is lifted, the bottom support device no longer supports the main gantry. At this time, the worker ties a steel wire rope to the upper hinged long handle, then stands on the square partition to take out the upper hinged pin, pulls the steel wire rope to the corner of the square partition and pulls it to lift the support steel pipe. Then the support steel pipe is fixed on the main gantry, and the winch is started to lift the main gantry so that the device is lifted together with the main gantry.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The main gantry bottom support device of the present invention is directly installed at the bottom of the main gantry, and the self-weight of the main gantry and its suspended weight are transferred to the tower through the universal ball joint support, thus solving the stability problem of the main gantry during hoisting operations; the present invention can be lifted together with the main gantry, and as long as corresponding hanging points are provided on the working surface of the main gantry for installing the device, it can adapt to towers of different heights and types, improve the safety of the tower erection process, and ensure the smooth progress of the tower erection. Attached Figure Description

[0020] Figure 1 This is an isometric view of the main support device at the bottom of the main support pole according to an embodiment of the present invention;

[0021] Figure 2 This is a front view of the main support pole bottom support device according to an embodiment of the present invention;

[0022] Figure 3 This is a top view of the main support pole bottom support device according to an embodiment of the present invention;

[0023] Figure 4 This is an axonometric view of a universal ball joint support according to an embodiment of the present invention;

[0024] Figure 5 This is a cross-sectional view of a universal ball joint support according to an embodiment of the present invention;

[0025] Figure 6 This is a side view of the hinge seat installation according to an embodiment of the present invention;

[0026] Figure 7 This is a side view of the hinge seat mounting according to an embodiment of the present invention;

[0027] In the diagram: 1-Square partition; 2-Support plate; 3-Universal ball joint support; 4-Main mast; 5-Upper connecting plate; 6-Upper hinge seat; 7-Support steel pipe; 8-Lower hinge seat;

[0028] 201-Lower lobe-shaped steel plate; 202-Cross support frame; 203-Upper lobe-shaped steel plate; 301-Lower connecting plate; 302-Square support; 303-Connecting steel plate; 304-Upper connecting plate; 305-Spherical hinge support; 306-Spherical hinge reinforcing rib; 307-Support reinforcing rib; 309-Elliptical ball head; 501-Hinged steel plate; 502-Upper hinge pin; 601-Upper hinge vertical plate; 602-Upper hinge rib; 603-Upper hinge base plate; 701-Square support tube; 702-Reinforcing steel plate; 703-Square tube pin; 704-Upper hinge long handle; 801-Lower hinge joint; 802-Lower hinge long handle; 803-Lower hinge pin. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Example 1: Please refer to Figures 1-3 One embodiment provided by the present invention: Working stage of the main support pole bottom support device:

[0033] The present invention provides a main support pole bottom support device, which includes a main support pole 4, a support plate 2, a universal ball joint support 3, an upper connecting plate 5, an upper hinge seat 6, a support steel pipe 7, and a lower hinge seat 8.

[0034] Please see Figures 1-3 The two ends of the universal ball joint support 3 of this invention are bolted to the main support rod 4 and the support plate 2 respectively. After bearing the weight of the main support rod 4 and its suspended load, the force is transmitted to the support plate 2. At this time, the four supporting steel pipes 7, which are hinged to the lower hinge seat 8, are under tension and transmit the force to the upper hinge seat 6. Since the upper hinge seat 6 is connected to the square partition 1, which is part of the main body of the tower, the tower ultimately bears the force from the weight of the main support rod and its suspended load. The structure of the four rods under tension providing rigid support for the main support rod 4 can greatly improve the stability of the main support rod 4 during hoisting operations. The parts connected by the hinge are also easy to disassemble and assemble, and it is also convenient to maintain the device. Among them, the parts fixed by bolts all use a double nut anti-loosening structure, and the parts connected by hinges are locked with cotter pins.

[0035] Assembly stage of the main mast bottom support device:

[0036] Example 2: Please refer to Figure 4 and Figure 5 The universal ball joint support 3 includes a lower connecting plate 301, a square support 302, a connecting steel plate 303, an upper connecting plate 304, a ball joint support column 305, a ball joint reinforcing rib 306, a support reinforcing rib 307, and an elliptical ball head 308. The upper connecting plate 304 is welded to the ball joint support column 305. Four ball joint reinforcing ribs 306 are welded to the side of the ball joint support column 305. An elliptical ball head 308 is welded to the lower end of the ball joint support column 305 and is installed inside the square support 302. The square support 302 is divided into left and right parts, and its sides are welded with support... The reinforcing rib 307 is used to install the elliptical ball head 308 into the square support 302. The two square supports 302 are then connected and fixed with screws through the connecting steel plate 303. Then, the upper connecting plate 304 of the universal ball joint support 3 is bolted to the pole cap of the main pole 4, and the lower connecting plate 301 is bolted to the support plate 2. The universal ball joint support 3 can adaptively rotate the elliptical ball head 309 to bear the load when the main pole 4 is slightly offset. All parts that are fixed by bolts use a double nut anti-loosening structure.

[0037] Example 3: Please refer to Figure 2 and Figure 6The support plate 2 is composed of two upper and lower petal-shaped steel plates 201 and 203 that hold the cross support frame 202. The cross support frame 202 is welded from multiple square steel pipes. Bolt connection holes are opened on the cross support frame 202 and the upper and lower petal-shaped steel plates 201 and 203. After being positioned by bolts, it is welded and fixed. Among them, all parts that are fixed by bolts use a double nut anti-loosening structure.

[0038] Example 4: Please refer to Figure 6 The lower hinge seat 8 includes a lower hinge joint 801, a lower hinge shank 802, and a lower hinge pin 803. The shank end of the lower hinge joint 801 is installed in the square steel tube of the support plate 2 and fixed with bolts. A through hole is opened at the other end of the lower hinge joint 801 for installing the lower hinge pin 803. The shank end of the lower hinge shank 802 is connected to the support steel tube 7 with a pin. A through hole is also opened at the other end of the lower hinge shank 802. The lower hinge pin 803 passes through the through holes of the lower hinge joint 801 and the lower hinge shank 802 to hinge the two together. Among them, the parts fixed by bolts all use a double nut anti-loosening structure, and the parts connected by hinges use cotter pins for locking.

[0039] Example 5: Please refer to Figure 1 , Figure 6 and Figure 7 The supporting steel pipe 7 includes a square supporting pipe 701, a reinforcing steel plate 702, a square pipe pin 703, and an upper hinged long handle 704. The square support tube 701 is a square steel tube with three evenly distributed through holes on each of its two ends. There are four reinforcing steel plates 702, each rectangular in shape, with three evenly distributed through holes on each plate. The reinforcing steel plates 702 are welded to the two ends of the square support tube 701, with each through hole corresponding to the previous one. Square tube pins 703 pass through these through holes, connecting and fixing the square support tube 701 to the lower hinged long handle 802 and the upper hinged long handle 704. The connection process between the square tube pins 703 and the lower hinged long handle 802 and the upper hinged long handle 704 is a hot riveting process, ensuring that all three square tube pins 703 are interference-fitted. Welds are required at the connection interfaces between the square tube pins 703 and the lower hinged long handle 802 and the upper hinged long handle 704. The angle between the support steel tube 701 and the horizontal plane is 35°.

[0040] Example 6: Please refer to Figure 7 The upper connecting plate 5 includes a hinged steel plate 501 and an upper hinge pin 502. The hinged steel plate 501 is a rectangular steel plate in pairs, with two through holes. The upper hinge pin 502 passes through the through holes of the hinged steel plate 502 and the upper hinged long handle (04) and the upper hinged vertical plate 601 to complete the hinged fixation. The hinged parts are locked with cotter pins.

[0041] Example 7: Please refer to Figure 7The upper hinge seat 6 includes an upper hinge vertical plate 601, an upper hinge rib plate 602, and an upper hinge base plate 603. The upper hinge vertical plate 601 has a through hole for hinge connection. The upper hinge rib plate 602 is welded to both sides of the upper hinge vertical plate 601 to strengthen its connection. The upper hinge vertical plate 601 and the upper hinge rib plate 602 are welded to the upper hinge base plate 603. The upper hinge base plate 603 has a bolt guide groove, allowing the upper hinge seat 6 to move along the guide groove to facilitate the assembly of the main pole bottom support device onto the square partition 1. The positional accuracy of the hinge through hole of the upper hinge vertical plate 601 on the square partition 1 determines the strength of the main pole bottom support device. All bolted parts use a double-nut anti-loosening structure, and hinged parts are locked using cotter pins.

[0042] Example 8: Please refer to Figure 1 and Figure 2 The bottom support device of the main mast can be lifted together with the main mast 4. When the main mast 4 is lifted, the bottom support device of the main mast no longer supports the main mast. At this time, the worker ties a steel wire rope to the upper hinged long handle 704, then stands on the square partition 1 and takes out the upper hinged pin 502. The steel wire rope is pulled to the opposite corner of the square partition 1 and pulled to lift the support steel pipe 7. Then the support steel pipe 7 is fixed to the main mast 4, and the winch is started to lift the main mast 4 so that the device is lifted together with the main mast.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A main boom bottom support device, characterized by: The main support device at the bottom of the main pole includes: main pole (4), support plate (2), universal ball joint support (3), upper connecting plate (5), upper hinge seat (6), support steel pipe (7) and lower hinge seat (8). The two ends of the universal ball joint support (3) are respectively bolted to the main pole (4) and support plate (2). The support plate (2) serves to connect the various devices and support the main pole (4). The lower hinge seat (8) connects one end of the support plate (2) and the support steel pipe (7), and the other end of the support steel pipe (7) is connected to the upper hinge seat (6) through the upper connecting plate (5). The upper hinge seat (6) is fixed on the square partition (1) of the goblet-shaped iron tower. The universal ball joint support (3) includes an upper connecting plate (304), a ball joint support column (305), a ball joint reinforcing rib (306), an elliptical ball head (309), a lower connecting plate (301), a square support (302), a connecting steel plate (303), and a support reinforcing rib (307); the upper connecting plate (304) is welded to the ball joint support column (305), four ball joint reinforcing ribs (306) are welded to the side of the ball joint support column (305), and an elliptical ball head (309) is welded to the lower end of the ball joint support column (305). The elliptical ball head (309) is installed inside the square support (302); the square support (302) is divided into two parts, left and right, and each side is welded with a support reinforcing rib (307). After the elliptical ball head (309) is installed into the square support (302), the two square supports (302) are connected and fixed by screws through the connecting steel plate (303); then the upper connecting plate (304) of the universal ball joint support (3) is bolted to the rod cap of the main rod (4), and the lower connecting plate (301) is bolted to the support plate (2); The universal ball joint support (3) can adaptively rotate the elliptical ball head (309) to bear the load when the main support rod (4) is slightly offset; The supporting steel pipe (7) includes a square supporting pipe (701), a reinforcing steel plate (702), a square tube pin (703), and an upper hinged long handle (704). The square supporting pipe (701) is a square steel pipe with three evenly distributed through holes on both sides of its ends. There are four reinforcing steel plates (702), which are cuboid in shape and have three evenly distributed through holes on them. The reinforcing steel plates (702) are welded to both sides of the square supporting pipe (701), and their through holes correspond one to one. The square tube pin (703) passes through the above-mentioned through holes to connect and fix the square supporting pipe (701) to the lower hinged long handle (802) and the upper hinged long handle (704). The connection process between the square tube pin (703) and the lower hinged long handle (802) and the upper hinged long handle (704) is a hot riveting process to ensure that all three square tube pins (703) are interference-fitted; a weld is required at the connection interface between the square tube pin (703) and the lower hinged long handle (802) and the upper hinged long handle (704).

2. A main boom bottom support device according to claim 1, characterized in that: The support plate (2) is composed of two upper and lower petal-shaped steel plates (201, 203) holding a cross support frame (202). The cross support frame (202) is welded from multiple square steel pipes. Bolt connection holes are provided on the cross support frame (202) and the upper and lower petal-shaped steel plates (201, 203). After positioning with bolts, it is welded and fixed.

3. A main boom bottom support apparatus according to claim 1, characterized in that: The lower hinge seat (8) includes a lower hinge joint (801), a lower hinge long shank (802), and a lower hinge pin (803). The long shank end of the lower hinge joint (801) is installed in the square steel tube of the support plate (2) and fixed with bolts. The other end of the lower hinge joint (801) has a through hole for installing the lower hinge pin (803). The long shank end of the lower hinge long shank (802) is connected to the support steel tube (7) with a pin. The other end of the lower hinge long shank (802) also has a through hole. The lower hinge pin (803) passes through the through holes of the lower hinge joint (801) and the lower hinge long shank (802) to hinge the two together.

4. A main boom bottom support apparatus according to claim 1, characterized in that: The angle between the supporting steel pipe (7) and the horizontal plane is 35°.

5. A main boom bottom support apparatus according to claim 1, characterized in that: The upper connecting plate (5) includes a hinged steel plate (501) and an upper hinge pin (502). The hinged steel plate (501) is a rectangular steel plate in pairs, with two through holes. The upper hinge pin (502) passes through the through holes of the hinged steel plate (501), the upper hinged long handle (704), and the upper hinged vertical plate (601) to complete the hinged fixation.

6. A main boom bottom support apparatus according to claim 1, characterized in that: The upper hinge seat (6) includes an upper hinge vertical plate (601), an upper hinge rib plate (602), and an upper hinge bottom plate (603). The upper hinge vertical plate (601) has a through hole for hinge. The upper hinge rib plate (602) is welded to both sides of the upper hinge vertical plate (601) to strengthen the connection strength of the upper hinge vertical plate (601). The upper hinge vertical plate (601) and the upper hinge rib plate (602) are welded to the upper hinge bottom plate (603). The upper hinge bottom plate (603) has a bolt guide groove. The upper hinge seat (6) can move a certain distance along the guide groove to facilitate the assembly of the main support rod bottom support device on the square partition (1). The positional accuracy of the hinge through hole of the upper hinged vertical plate (601) on the square partition (1) determines the degree of stress distribution of the main support device at the bottom of the main pole.

7. A main support pole bottom support device according to any one of claims 1-6, characterized in that: All parts that are fixed by bolts use a double-nut anti-loosening structure; and all parts that are hinged use cotter pins for locking.

8. The main support pole bottom support device according to claim 1, characterized in that: The bottom support device of the main pole can be lifted together with the main pole (4). When the main pole (4) is lifted, the bottom support device of the main pole no longer supports the main pole (4). At this time, the worker ties a steel wire rope to the upper hinged long handle (704), then stands on the square partition (1) and takes out the upper hinged pin (502). The steel wire rope is pulled to the opposite corner of the square partition (1) and pulled to lift the support steel pipe (7). Then the support steel pipe (7) is fixed on the main pole (4), and the winch is started to lift the main pole (4) so ​​that the device is lifted together with the main pole (4).

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