A device and method for adjusting the horizontal installation of annular steel frames of a steel pipe tower for a power transmission line

Abstract

The present invention provides a device and method for horizontal installation and adjustment of annular steel skeleton of a steel tube tower for a power transmission line. The device comprises an outer tube hoisting assembly, comprising a guide pulley and a steel wire rope, wherein two guide pulleys are respectively fixed on flanges at two ends of the outer tube, and the steel wire rope passes through the inner side and the outer side of the outer tube along the two guide pulleys to form a closed loop, and the steel wire rope on the inner side of the outer tube serves as an installation track; an outer tube bearing assembly, comprising a fixed base frame and bearing frames arranged at two ends of the fixed base frame, wherein roller frames embracing the middle are respectively arranged at both ends of the bearing frames, and rollers are respectively arranged at both ends of the roller frames, and the rollers are used to adjust the rotation angle of the outer tube; an inner tube hoisting assembly, comprising a hoisting pulley arranged at one end of the inner tube, and the hoisting pulley is used to travel on the installation track; the present invention can safely and stably install the annular steel skeleton of the steel tube tower for a power transmission line.

Description

Technical Field

[0001] The invention belongs to the technical field of power transmission equipment installation, and in particular relates to a device and method for adjusting the horizontal installation of annular steel frames of a steel pipe tower for a power transmission line. Background Art

[0002] In the large spanning project of 1,000-volt lines, the spanning tower is a steel pipe tower structure. To increase the strength, an annular inner steel frame is designed inside the steel pipe. During the construction process, the inner steel frame needs to be installed inside the steel pipe so that the inner and outer pipes of the steel pipe are plugged together. During the plugging process, due to the huge volume of the inner and outer pipes, generally steel pipes over 3200mm, external equipment such as forklifts and cranes must be relied on to complete the coordinated lifting. In the traditional lifting method, the inner pipe needs to be lifted by a crane and slowly fed into the outer pipe. Due to the long inner and outer pipes, on-site installation is difficult and the operation steps are cumbersome. In order to solve the above problems, this application proposes a horizontal installation and adjustment device and method for the annular steel frame of a transmission line steel pipe tower. Summary of the invention

[0003] The purpose of the present invention is to provide a device and method for horizontally installing and adjusting the annular steel frame of a steel pipe tower of a power transmission line, so as to solve the problems of difficult and complicated installation steps of a spanning tower at a construction site.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] In a first aspect, the present invention provides a transmission line steel pipe tower annular steel frame horizontal installation adjustment device, which is used for horizontal installation adjustment of inner pipe and outer pipe, comprising:

[0006] The outer tube hoisting assembly includes a guide pulley and a steel wire rope. The two guide pulleys are respectively fixed to the flanges at both ends of the outer tube. The steel wire rope passes through the inner side and the outer side of the outer tube along the two guide pulleys to form a closed loop. The steel wire rope inside the outer tube serves as a mounting track.

[0007] The outer tube bearing assembly comprises a fixed base frame and bearing frames arranged at both ends of the fixed base frame, the bearing frames are respectively provided with roller frames embracing the middle part at both ends, and the roller frames are respectively provided with rollers at both ends, and the rollers are used to adjust the rotation angle of the outer tube;

[0008] The inner tube hoisting assembly comprises a hoisting pulley arranged at one end of the inner tube, and the hoisting pulley is used for walking on the installation track.

[0009] Preferably, the guide pulley includes a first base plate, a pulley frame arranged on the first base plate, and a first fixed pulley fixed at both ends of the pulley frame, the steel wire rope is led out from the first fixed pulleys at both ends of the pulley frame to the inner side and the outer side of the outer tube respectively, and the first base plate is fixed to the flange at the end of the outer tube by fasteners.

[0010] Preferably, the lifting pulley includes a second base plate and a second fixed pulley, the second fixed pulley is provided with a mounting plate at only one end, the mounting plate is fixedly connected to the second base plate, and the second base plate is fixed to the side wall of the inner tube end by fasteners.

[0011] Preferably, the outer tube lifting assembly also includes a tensioning mechanism, which includes a first hydraulic cylinder, connecting plates arranged at both ends of the first hydraulic cylinder, and a connecting head arranged on the connecting plate, one end of the connecting head is threadedly connected to the connecting plate by a bolt, and the other end of the connecting head is connected to a crimping ring formed at the end of the wire rope.

[0012] Preferably, the tensioning mechanism further comprises a connecting rod, and connecting holes and connecting waist-shaped holes are respectively provided at both ends of the connecting rod, and the connecting rod is movably connected to the shaft seats provided on the connecting plates at both ends of the first hydraulic cylinder through the connecting holes and the connecting waist-shaped holes.

[0013] Preferably, there is at least one steel wire rope and it forms at least one closed loop, and the structures of the guide pulley, the hoisting pulley and the tensioning mechanism are matched with the number of steel wire ropes.

[0014] Preferably, the outer tube bearing assembly further comprises at least one motor, the motor is fixed to one side of the roller frame, and the main shaft of the motor is respectively connected to the rollers on the roller frame through belts.

[0015] Preferably, the bottom of the roller frame is slidably connected to the supporting frame, and a second hydraulic cylinder connected to the roller frames at both ends is arranged in the middle of the supporting frame, and the second hydraulic cylinder is used to adjust the distance between the roller frames at both ends so as to adjust the axial height of the supporting outer tube.

[0016] In a second aspect, the present invention provides a method for horizontally installing and adjusting annular steel frames of a steel pipe tower for a power transmission line, comprising:

[0017] Hoist the outer tube onto the outer tube bearing assembly by a crane;

[0018] Rotate the outer tube through the outer tube bearing assembly until the wire rope is at the highest position;

[0019] Hoist one end of the inner tube with the hoisting pulley to one end of the outer tube by a crane and keep the inner tube and the outer tube concentric;

[0020] Lift the other end of the inner tube by a forklift and move it toward the outer tube until the lifting pulley is arranged on the installation track;

[0021] Use a forklift to continue to push the inner tube into the outer tube until the inner tube and the outer tube are properly fitted;

[0022] Use another forklift to fork up the end of the inner tube with the lifting pulley to keep the inner tube stable;

[0023] The inner tube and the outer tube are installed and fixed by fasteners.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a device and method for horizontal installation and adjustment of annular steel frames of a steel pipe tower for a power transmission line. The device comprises an outer pipe hoisting assembly, an outer pipe bearing assembly and an inner pipe hoisting assembly. A walking track that can slide inside the outer pipe is formed by the outer pipe hoisting assembly. The outer pipe is moved to a suitable angle by the outer pipe bearing assembly, and then the inner pipe is placed on the walking track by the inner pipe hoisting assembly, thereby smoothly completing the assembly of the inner pipe and the outer pipe. The whole process is safe and convenient, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 is an overall schematic diagram of a horizontal installation adjustment device provided by an embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of the guide pulley structure provided by an embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of a lifting pulley provided by an embodiment of the present invention;

[0030] Figure 4 is a schematic structural diagram of a tensioning mechanism provided by an embodiment of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the outer tube bearing assembly provided by an embodiment of the present invention;

[0032] Figure 6 is a schematic diagram of the elevation angle of the outer tube bearing assembly structure provided by an embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of the installation of the inner tube and the outer appearance provided by an embodiment of the present invention;

[0034] Figure 8 It is a flow chart of a horizontal installation adjustment method provided by an embodiment of the present invention.

[0035] The markings in the figure are:

[0036] 1. Inner tube, 2. Outer tube, 3. Outer tube lifting assembly, 31. Guide pulley, 311. First base plate, 312. Pulley frame, 313. First fixed pulley, 32. Wire rope, 33. Tensioning mechanism, 331. First hydraulic cylinder, 332. Connecting plate, 333. Connecting head, 334. Connecting rod, 335. Connecting hole, 336. Connecting waist hole, 4. Outer tube bearing assembly, 41. Fixed base frame, 42. Bearing frame, 43. Roller frame, 44. Roller, 45. Motor, 46. Second hydraulic cylinder, 5. Inner tube lifting assembly, 51. Lifting pulley, 511. Second base plate, 512. Second fixed pulley, 513. Mounting plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1

[0039] like Figure 1 As shown, this embodiment provides a horizontal installation and adjustment device for the annular steel frame of a transmission line steel pipe tower, which is used for the horizontal installation and adjustment of the inner pipe 1 and the outer pipe 2.

[0040] like Figure 1 and 2 As shown, the outer tube lifting assembly 3 includes a guide pulley 31 and a steel wire rope 32. The two guide pulleys 31 are respectively fixed on the flanges at both ends of the outer tube 2. The steel wire rope 32 passes through the inner and outer sides of the outer tube 2 along the two guide pulleys 31 to form a closed loop. The steel wire rope 32 on the inner side of the outer tube 2 serves as a mounting track.

[0041] Specifically, the guide pulley 31 includes a first base plate 311, a pulley frame 312 arranged on the first base plate 311, and a first fixed pulley 313 fixed at both ends of the pulley frame 312. The wire rope 32 is led out to the inner side and the outer side of the outer tube 2 by the first fixed pulleys 313 at both ends of the pulley frame 312, and the first base plate 311 is fixed to the flange at the end of the outer tube 2 by fasteners.

[0042] like Figure 4As shown, the outer tube lifting assembly 3 also includes a tensioning mechanism 33, which includes a first hydraulic cylinder 331, connecting plates 332 arranged at both ends of the first hydraulic cylinder 331, and a connecting head 333 arranged on the connecting plate 332. One end of the connecting head 333 is threadedly connected to the connecting plate 332 by a bolt, and the other end of the connecting head 333 is connected to a crimping ring formed at the end of the wire rope 32. The tightness of the wire rope 32 is adjusted by the first hydraulic cylinder 331 to keep a certain tension on the wire rope 32.

[0043] The tensioning mechanism 33 also includes a connecting rod 334, which has a connecting hole 335 and a connecting waist-shaped hole 336 at both ends. The connecting rod 334 is movably connected to the shaft seats set on the connecting plates 332 at both ends of the first hydraulic cylinder 331 through the connecting hole 335 and the connecting waist-shaped hole 336. The setting of the connecting rod 334 can facilitate the installation of the first hydraulic cylinder 331 and protect the safety of the first hydraulic cylinder 331.

[0044] like Figure 3 As shown, the inner tube hoisting assembly 5 includes a hoisting pulley 51 arranged at one end of the inner tube 1, and the hoisting pulley 51 is used to walk on the installation track. The hoisting pulley 51 can disperse the load of the inner tube 1 on the one hand, and can make the inner tube 1 enter the outer tube 2 more stably on the other hand.

[0045] Specifically, the lifting pulley 51 includes a second bottom plate 511 and a second fixed pulley 512. The second fixed pulley 512 is provided with a mounting plate 513 at only one end. The mounting plate 513 is fixedly connected to the second bottom plate 511. The second bottom plate 511 is fixed to the side wall of the end of the inner tube 1 by fasteners.

[0046] In the specific implementation process, there is at least one steel wire rope 32 and at least one closed loop is formed. In order to ensure balance and stability, the present embodiment provides two left-right symmetrical steel wire ropes 32 to form two left-right symmetrical closed loops and a mounting track. When two steel wire ropes 32 are provided, the structures of the guide pulley 31, the hoisting pulley 51 and the tensioning mechanism 33 must be matched with the number of steel wire ropes 32 respectively. Here, the pulley frame 312 on the guide pulley 31 needs to be provided with two, the second fixed pulley 512 and the mounting plate 513 on the hoisting pulley 51 need to be provided with two, and the connectors 333 at both ends of the tensioning mechanism 33 need to be provided with two respectively.

[0047] like Figure 5 and 6As shown, the outer tube bearing assembly 4 includes a fixed base frame 41 and a bearing frame 42 arranged at both ends of the fixed base frame 41, and roller frames 43 embracing the middle are respectively arranged at both ends of the bearing frame 42, and rollers 44 are respectively arranged at both ends of the roller frame 43. The rollers 44 are used to adjust the rotation angle of the outer tube 2; the outer tube bearing assembly 4 also includes at least one motor 45, the motor 45 is fixed to one side of the roller frame 43, and the main shaft of the motor 45 is connected to the rollers 44 on the roller frame 43 through belts.

[0048] The bottom of the roller frame 43 is slidably connected to the support frame 42. A second hydraulic cylinder 46 connecting the roller frames 43 at both ends is provided in the middle of the support frame 42. The second hydraulic cylinder 46 is used to adjust the distance between the roller frames 43 at both ends so as to adjust the axis height of the outer tube 2 supported thereon. The outer tube support assembly 4 adopts a closed-loop structure design with good integrity and guaranteed structural strength. The outer tube 2 rotates around the axis by adjusting the motor 45 to drive the roller 44 (the roller 44 can be a polyurethane wheel) to rotate, so as to prepare for subsequent assembly. When the inner tube 1 is assembled into the outer tube 2, the inner tube 1 and the outer tube 2 can be accurately assembled by adjusting the first hydraulic cylinder 331 and the motor 45.

[0049] Embodiment 2

[0050] like Figure 8 As shown, this embodiment provides a method for horizontally installing and adjusting the annular steel frame of a steel pipe tower for a power transmission line, comprising the following steps:

[0051] Step 1: Use a crane to hoist the outer tube 2 onto the outer tube bearing assembly 4.

[0052] Step 2: Rotate the outer tube 2 through the outer tube bearing assembly 4 until the steel wire rope 32 is at the highest position.

[0053] Step 3: Use a crane to hoist one end of the inner tube 1 with the hoisting pulley 51 to one end of the outer tube 2 and keep the inner tube 1 and the outer tube 2 concentric.

[0054] Step 4: Use a forklift to lift the other end of the inner tube 1 and move it toward the outer tube 2 until the lifting pulley 51 is placed on the installation track; Figure 7 shown.

[0055] Step 5: Use a forklift to continue to push the inner tube 1 into the outer tube 2 until the inner tube 1 and the outer tube 2 are properly fitted.

[0056] Step 6: Use another forklift to fork up one end of the inner tube 1 with the lifting pulley 51 to keep the inner tube 1 stable.

[0057] Step 7: Install and fix the inner tube 1 and the outer tube 2 using fasteners.

[0058] The present invention provides a device and method for horizontal installation and adjustment of annular steel frames of a steel pipe tower for a power transmission line. The device comprises an outer pipe hoisting assembly 3, an outer pipe bearing assembly 4 and an inner pipe hoisting assembly 5. A walking track that can slide in an outer pipe 2 is formed by the outer pipe hoisting assembly 3. The outer pipe 2 is moved to a suitable angle by the outer pipe bearing assembly 4. Then, the inner pipe 1 is placed on the walking track by the inner pipe hoisting assembly 5, thereby smoothly completing the assembly of the inner pipe 1 and the outer pipe 2. The method works with the help of existing cranes and forklifts. The whole process is safe and convenient, and is suitable for popularization and use.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A horizontal installation and adjustment device for annular steel frame of a transmission line steel pipe tower, used for horizontal installation and adjustment of inner and outer pipes. It is characterized in that include: The outer tube hoisting assembly includes a guide pulley and a steel wire rope. The two guide pulleys are respectively fixed to the flanges at both ends of the outer tube. The steel wire rope passes through the inner side and the outer side of the outer tube along the two guide pulleys to form a closed loop. The steel wire rope inside the outer tube serves as a mounting track. The outer tube bearing assembly comprises a fixed base frame and bearing frames arranged at both ends of the fixed base frame, the bearing frames are respectively provided with roller frames embracing the middle part at both ends, the roller frames are respectively provided with rollers at both ends, and the rollers are used to adjust the rotation angle of the outer tube; the outer tube bearing assembly also comprises at least one motor, the motor is fixed to one side of the roller frame, and the main shaft of the motor is respectively connected to the rollers on the roller frame through belts; the bottom of the roller frame is slidably connected to the bearing frame, and a second hydraulic cylinder connected to the roller frames at both ends is arranged in the middle of the bearing frame, and the second hydraulic cylinder is used to adjust the distance between the roller frames at both ends so as to adjust the axis height of the outer tube it carries; The inner tube hoisting assembly comprises a hoisting pulley arranged at one end of the inner tube, and the hoisting pulley is used for walking on the installation track.

2. A transmission line steel pipe tower ring steel frame horizontal installation adjustment device according to claim 1, It is characterized in that The guide pulley includes a first base plate, a pulley frame arranged on the first base plate, and a first fixed pulley fixed at both ends of the pulley frame. The steel wire rope is led out from the first fixed pulleys at both ends of the pulley frame to the inner side and the outer side of the outer tube respectively. The first base plate is fixed to the flange at the end of the outer tube by fasteners.

3. A transmission line steel pipe tower ring steel frame horizontal installation adjustment device according to claim 1, It is characterized in that The lifting pulley comprises a second bottom plate and a second fixed pulley, wherein only one end of the second fixed pulley is provided with a mounting plate, wherein the mounting plate is fixedly connected to the second bottom plate, and the second bottom plate is fixed to the side wall of the inner tube end by fasteners.

4. A transmission line steel pipe tower ring steel frame horizontal installation adjustment device according to claim 1, It is characterized in that The outer tube lifting assembly also includes a tensioning mechanism, which includes a first hydraulic cylinder, connecting plates arranged at both ends of the first hydraulic cylinder, and a connecting head arranged on the connecting plate, one end of the connecting head is threadedly connected to the connecting plate by a bolt, and the other end of the connecting head is connected to a crimping ring formed at the end of the wire rope.

5. A transmission line steel pipe tower ring steel frame horizontal installation adjustment device according to claim 4, It is characterized in that The tensioning mechanism also includes a connecting rod, and connecting holes and connecting waist-shaped holes are respectively arranged at both ends of the connecting rod. The connecting rod is movably connected to the shaft seats arranged on the connecting plates at both ends of the first hydraulic cylinder through the connecting holes and the connecting waist-shaped holes.

6. A transmission line steel pipe tower ring steel frame horizontal installation adjustment device according to claim 4, It is characterized in that There is at least one steel wire rope and it forms at least one closed loop. The structures of the guide pulley, the hoisting pulley and the tensioning mechanism are matched with the number of steel wire ropes.

7. An adjustment method for the horizontal installation adjustment device of the ring-shaped steel frame of a steel pipe tower for a power transmission line based on any one of claims 1 to 6, It is characterized in that include: Hoist the outer tube onto the outer tube bearing assembly by a crane; Rotate the outer tube through the outer tube bearing assembly until the wire rope is at the highest position; Hoist one end of the inner tube with the hoisting pulley to one end of the outer tube by a crane and keep the inner tube and the outer tube concentric; Lift the other end of the inner tube by a forklift and move it toward the outer tube until the lifting pulley is arranged on the installation track; Use a forklift to continue to push the inner tube into the outer tube until the inner tube and the outer tube are properly fitted; Use another forklift to fork up the end of the inner tube with the lifting pulley to keep the inner tube stable; The inner tube and the outer tube are installed and fixed by fasteners.

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