Tower root opening adjustment device and adjustment method

Abstract

The present invention provides a tower base adjustment device and an adjustment method, belonging to the technical field of power transmission, wherein the tower base adjustment device comprises a corner support assembly and a length adjustment assembly; the corner support assembly comprises a first support arm and a second support arm hinged by means of the angle adjustment assembly, the first support arm and the second support arm are respectively used to connect to the two inner side walls of the tower foot; the angle adjustment assembly comprises a hinge shaft that passes through the first support arm and the second support arm in sequence from top to bottom and a locking member arranged on the hinge shaft; the length adjustment assembly comprises a fixed sleeve and two extension rods that respectively pass through the two ends of the fixed sleeve and extend outward, the extension rods are used to connect the hinge shaft; a locking assembly for limiting the extension rod is arranged in the fixed sleeve. The tower base adjustment device provided by the present invention increases the supporting force between the tower feet and realizes the real-time adjustment of the deformed tower feet, thereby improving the installation efficiency of the tower.

Description

Technical Field

[0001] The invention belongs to the technical field of power transmission, and more specifically, relates to an iron tower root opening adjustment device and an adjustment method. Background Art

[0002] The overall tower construction method is to assemble the tower as a whole on the ground and then use a crane to hoist it into place. Finally, the high-altitude personnel go up to the tower to remove the hook, which effectively reduces the number of people working at high altitudes. However, during the overall hoisting process, because only the lifting point is stressed and the tower body has a large deadweight, the tower will inevitably deform slightly, making it difficult to put the tower foot in place. Summary of the invention

[0003] The object of the present invention is to provide an iron tower base adjustment device and an adjustment method, which are intended to adjust the base distance of the iron tower and facilitate the installation of the tower foot in place.

[0004] To achieve the above object, the technical solution adopted by the present invention is to provide a tower root opening adjustment device, comprising:

[0005] A corner support assembly, the corner support assembly comprising a first support arm and a second support arm hingedly connected by means of an angle adjustment assembly, the first support arm and the second support arm being respectively used to be connected to two inner side walls of the tower foot; the angle adjustment assembly comprising a hinge shaft which sequentially passes through the first support arm and the second support arm from top to bottom and a locking member arranged on the hinge shaft;

[0006] The length adjustment component comprises a fixed sleeve and two extension rods respectively passing through two ends of the fixed sleeve and extending outward, wherein the extension rods are used to connect the hinge shaft; a locking component for limiting the extension rods is arranged in the fixed sleeve.

[0007] As another embodiment of the present application, the locking member includes:

[0008] Two baffles, both of which are arranged on the hinge shaft, and the two baffles are respectively located above the first support arm and below the second support arm, and a plurality of locking nails are slidably arranged on the baffles, and the plurality of locking nails are evenly distributed along a ring on the outside of the hinge shaft; the locking nails penetrate the baffles and extend to the first support arm or the second support arm; the locking nails on the two baffles correspond to each other or are staggered;

[0009] A positioning hole is provided on the first support arm and the second support arm, and the positioning hole cooperates with the locking pin on the corresponding baffle plate to limit the first support arm and the second support arm.

[0010] As another embodiment of the present application, the locking pin includes:

[0011] A nail rod, the nail rod passes through the baffle, a nail cap is provided on the side of the nail rod away from the first support arm or the second support arm, an elastic member is provided between the nail cap and the baffle; an installation cavity is provided at one end of the nail rod away from the nail cap; an elastic pin is hinged in the installation cavity, and a limiting protrusion is provided on the outer side of the installation cavity to limit the rotation angle of the elastic pin.

[0012] As another embodiment of the present application, the first support arm and the second support arm are both mounted on the hinge shaft by means of a rotating bearing, the end of the first support arm is vertically connected to a first angle iron, the end of the second support arm is vertically connected to a second angle iron, the first angle iron is located above the second angle iron, and the first angle iron and the second angle iron are both provided with bolt holes for connecting to the tower feet; a traction spring is also arranged between the first support arm and the second support arm, and the traction spring is located on the side of the hinge shaft away from the first angle iron and the second angle iron.

[0013] As another embodiment of the present application, a protractor with an angle dimension is provided on the first support arm, and the zero degree scale of the protractor corresponds to the axis of the first support arm; a pointer adapted to the protractor is provided on the second support arm, and the pointer corresponds to the axis of the second support arm, and the pointer points to the protractor.

[0014] As another embodiment of the present application, a gear set is arranged in the fixed sleeve, and the gear set includes a rotating shaft passing through the fixed sleeve and a first gear and a second gear sleeved on the rotating shaft, and the first gear and the second gear are respectively located inside and outside the fixed sleeve; the first gear is simultaneously engaged with the toothed plates on the two extension rods, and the rotation of the first gear drives the extension rods to move in opposite or reverse directions; the second gear rotates synchronously with the first gear, and the second gear is connected to the locking assembly to limit the rotation of the first gear.

[0015] As another embodiment of the present application, the locking assembly includes:

[0016] A locking member, the locking member is rotatably connected to the fixing sleeve, the locking member is located at one side of the second gear, a locking portion is provided on the locking member, and the locking portion abuts between two adjacent teeth of the second gear to prevent the second gear from rotating;

[0017] A limiting member, the limiting member is located on a side of the second gear away from the locking member, the limiting member moves along the length direction of the fixing sleeve, and the limiting member abuts against the inner side of the locking member to limit the locking member.

[0018] As another embodiment of the present application, a positioning member is provided on the fixing sleeve, and the positioning member is located on a side of the hinge axis between the locking member and the fixing sleeve away from the second gear, and the positioning member is connected to the locking member by means of a locking spring.

[0019] The beneficial effect of the iron tower base adjustment device provided by the present invention is that compared with the prior art, the iron tower base adjustment device of the present invention effectively increases the supporting strength of the inner side of the tower foot by arranging a corner support assembly and a length adjustment assembly, thereby overcoming the problem that the tower foot is deformed during the lifting process due to insufficient supporting force between the tower feet, and the tower foot is difficult to install due to difficulty in adjustment after deformation; thereby achieving the effect of increasing the supporting force between the tower feet and real-time adjustment of the deformed tower feet, thereby improving the installation efficiency of the iron tower.

[0020] The present invention also provides a tower spacing adjustment method, which uses the tower spacing adjustment device, and comprises the following steps:

[0021] S1. Install two corner support assemblies at both ends of the length adjustment assembly respectively; and cross-arrange two tower root adjustment assemblies up and down;

[0022] S2, connecting the first support arm and the second support arm of the corner support assembly to the tower foot, and fixing the locking member and the locking assembly;

[0023] S3. When the hoisting tower is ready to be put in place, open the locking assembly and fine-tune the distance between the tower feet by adjusting the length of the extension rod extending out of the fixing sleeve.

[0024] As another embodiment of the present application, in step S2, a length adjustment component is provided between two adjacent tower feet, and the length adjustment component is respectively connected to the first support arm or the second support arm on the two adjacent tower feet.

[0025] The beneficial effect of the iron tower root adjustment method provided by the present invention is that: compared with the prior art, the iron tower root adjustment method of the present invention adopts the above-mentioned iron tower root adjustment device, has all the beneficial effects thereof, realizes the effect of increasing the supporting force between the tower feet and real-time adjustment of the deformed tower feet, and improves the installation efficiency of the iron tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of a tower root opening adjustment device provided in an embodiment of the present invention;

[0028] Figure 2 A side view of a corner support assembly provided by an embodiment of the present invention;

[0029] Figure 3 A cross-sectional view of a locking pin provided in an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the structure of a length adjustment assembly provided in an embodiment of the present invention;

[0031] Figure 5 A top view of a length adjustment assembly provided in accordance with a first embodiment of the present invention;

[0032] Figure 6 A cross-sectional view of a length adjustment assembly provided in accordance with a first embodiment of the present invention;

[0033] Figure 7 A top view of a length adjustment assembly provided in accordance with a second embodiment of the present invention;

[0034] Figure 8 A cross-sectional view of a length adjustment assembly provided in accordance with a third embodiment of the present invention.

[0035] In the figure: 10, first support arm; 11, first angle iron; 12, second support arm; 13, second angle iron; 14, baffle; 15, protractor; 16, pointer; 17, traction spring; 18, locking nail; 181, nail cap; 182, nail rod; 183, installation cavity; 184, elastic pin; 19, hinge shaft; 20, fixing sleeve; 21, extension rod; 22, second gear; 23, limit member; 24, hexagonal nut; 25, locking member; 26, positioning member; 27, driving motor; 28, threaded rod; 29, tooth plate; 30, first gear; 31, tension wheel; 32, flange. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] See also Figures 1 to 8, the tower base adjustment device and adjustment method provided by the present invention are now described. The tower base adjustment device includes a corner support assembly and a length adjustment assembly; the corner support assembly includes a first support arm 10 and a second support arm 12 hinged by the angle adjustment assembly, and the first support arm 10 and the second support arm 12 are respectively used to connect to the two inner side walls of the tower foot; the angle adjustment assembly includes a hinge shaft 19 that passes through the first support arm 10 and the second support arm 12 from top to bottom in sequence and a locking member provided on the hinge shaft 19; the length adjustment assembly includes a fixed sleeve 20 and two extension rods 21 that respectively pass through the two ends of the fixed sleeve 20 and extend outward, and the extension rod 21 is used to connect the hinge shaft 19; a locking assembly for limiting the extension rod 21 is provided in the fixed sleeve 20.

[0038] Compared with the prior art, the tower base adjustment device provided by the present invention has corner support assemblies connected to both ends of the length adjustment assembly, and the first support arm 10 and the second support arm 12 are respectively connected to the two inner walls of the tower foot. After installation, the first support arm 10 and the second support arm 12 are fixed by means of a locking member, and the angle between the first support arm 10 and the second support arm 12 is determined; during hoisting, the angle of the tower foot is prevented from being deflected and deformed. Two sets of tower base adjustment devices are staggered up and down on the tower foot, and the two sets of length adjustment assemblies are staggered up and down. When the first support arm 10 and the second support arm 12 are installed, the locking assembly on the fixed sleeve 20 is in the open state, and the extension rod 21 slides freely along its length direction to achieve the purpose of extension or shortening.

[0039] Before installation, first complete the assembly of the entire tower, determine the positions of the four tower feet and the distances between adjacent tower feet, and determine the angles of the two side walls on the inner side of each tower foot; then install the first connecting arm and the second connecting arm, and determine the angle between the first connecting arm and the second connecting arm; take the two diagonally arranged tower feet as a group, and install at least two groups, and the two groups of tower root adjustment devices are cross-shaped and staggered up and down. After the installation is completed, fix it with the help of locking parts and locking components. Finally, hoist the tower. During the hoisting process, the tower feet are affected by the length adjustment components and the corner support components, and maintain the original state without deformation, or can be adjusted in time through the length adjustment components after slight deformation, so as to facilitate the installation of the tower feet.

[0040] The tower base adjustment device provided by the present invention effectively increases the supporting strength of the inner side of the tower foot by arranging a corner support assembly and a length adjustment assembly, thereby overcoming the problems of deformation of the tower foot during lifting due to insufficient supporting force between the tower feet, and difficulty in installing the tower foot due to difficulty in adjusting after deformation; thereby achieving the effect of increasing the supporting force between the tower feet and real-time adjustment of the deformed tower feet, thereby improving the installation efficiency of the tower.

[0041] As a specific implementation method of the tower root opening adjustment device provided by the present invention, please refer to Figure 1 and Figure 2 The locking member includes two baffles 14 and positioning holes; the two baffles 14 are both arranged on the hinge shaft 19, and the two baffles 14 are respectively located above the first support arm 10 and below the second support arm 12. A plurality of locking nails 18 are slidably arranged on the baffles 14, and the plurality of locking nails 18 are evenly distributed along the ring on the outside of the hinge shaft 19; the locking nails 18 penetrate the baffles 14 and extend to the first support arm 10 or the second support arm 12; the locking nails 18 on the two baffles 14 correspond to each other one by one or are arranged alternately; the positioning holes are opened on the first support arm 10 and the second support arm 12, and the positioning holes cooperate with the locking nails 18 on the corresponding baffles 14 to limit the first support arm 10 and the second support arm 12.

[0042] Specifically, the locking member includes a baffle 14 provided at both ends of the hinge shaft 19 and positioning holes provided on the first support arm 10 and the second support arm 12; the two baffles 14 are respectively provided above the first support arm 10 and below the second support arm 12, and the locking pin 18 on the baffle 14 located above the first support arm 10 moves downward until it extends into the positioning hole on the first support arm 10, and the locking pin 18 is connected to the positioning hole on the first support arm 10 to limit the rotation of the first support arm 10; similarly, the locking pin 18 on the baffle 14 located below the second support arm 12 moves upward until it extends into the positioning hole on the second support arm 12, and the locking pin 18 is connected to the positioning hole on the second support arm 12 to limit the rotation of the second support arm 12.

[0043] Optionally, the locking pins 18 on the two baffles 14 are arranged one by one or staggered. The center of the circular track where the locking pins 18 on each baffle 14 are located is consistent with the axis of the baffle 14; the center angle between two adjacent locking pins 18 is adjusted according to actual conditions. Optionally, the center angle between two adjacent locking pins 18 is 10°.

[0044] As a specific implementation method of the tower root opening adjustment device provided by the present invention, please refer to Figure 3 The locking nail 18 includes a nail rod 182, which passes through the baffle 14. A nail cap 181 is provided on the side of the nail rod 182 away from the first support arm 10 or the second support arm 12, and an elastic member is provided between the nail cap 181 and the baffle 14; an installation cavity 183 is opened at one end of the nail rod 182 away from the nail cap 181; an elastic pin 184 is hinged in the installation cavity 183, and a limiting protrusion for limiting the rotation angle of the elastic pin 184 is provided on the outer side of the installation cavity 183.

[0045] Specifically, the two ends of the locking nail 18 are respectively provided with a nail cap 181 and an elastic pin 184. The locking nail 18 penetrates the baffle plate 14 with the help of the end provided with the elastic pin 184 and is limited on the baffle plate 14 by the elastic pin 184. A mounting cavity 183 is provided on the nail rod 182 at the end of the locking nail 18 away from the nail cap 181. The elastic pin 184 is hingedly installed in the mounting cavity 183 and rotates and extends outward with the help of elasticity. When not affected by external forces, the elastic pin 184 is in an expanded state, and the elastic pin 184 extends out of the mounting cavity 183. A limiting protrusion is provided on the nail rod 182 outside the mounting cavity 183. The limiting protrusion achieves the function of limiting the elastic pin 184, and prevents the elastic pin 184 from rotating too much. When inward pressure is applied to the elastic pin 184, the elastic pin 184 retracts into the mounting cavity 183. After the free end of the nail rod 182 passes through the positioning hole on the first support arm 10 or the second support arm 12, the elastic pin 184 pops out to the outside without being affected by the outside and is clamped on the lower end of the first support arm 10 or the upper end of the second support arm 12.

[0046] A mounting cavity 183 is provided on a nail rod 182, and the mounting cavity 183 horizontally penetrates the nail rod 182. Two elastic pins 184 are symmetrically installed in the mounting cavity 183, and a spring is provided between the two elastic pins 184. In a stress-free state, the two elastic pins 184 extend outward under the elastic force of the spring.

[0047] The hinge point between the elastic pin 184 and the mounting cavity 183 is located at an end of the elastic pin 184 away from the nail cap 181. The elastic pin 184 rotates around the hinge point to extend or retract.

[0048] Optionally, the cross section of the elastic pin 184 is triangular, and in a state without force, the two elastic pins 184 are extended outward by the action of the middle spring. The side surface of the elastic pin 184 that is in contact with the first support arm 10 or the second support arm 12 is a plane.

[0049] Optionally, a spring is further provided between the nail cap 181 and the baffle 14, and the spring is sleeved on the outside of the nail rod 182. When the elastic pin 184 is retracted into the installation cavity 183, the nail rod 182 moves to the side away from the baffle 14 under the elastic action of the spring. When the nail rod 182 is located on the first support arm 10 under the action limit of the elastic pin 184, an external force inward is applied to the elastic pin 184 to move it inward into the installation cavity 183. At this time, the elastic force applied by the spring on the nail rod 182 to the nail cap 181 drives the nail rod 182 to escape from the positioning hole on the first support arm 10.

[0050] As a specific implementation method of the tower root opening adjustment device provided by the present invention, please refer to Figure 2The first support arm 10 and the second support arm 12 are both mounted on the hinge shaft 19 by means of a rotating bearing sleeve. The end of the first support arm 10 is vertically connected to the first angle iron 11, and the end of the second support arm 12 is vertically connected to the second angle iron 13. The first angle iron 11 is located above the second angle iron 13, and the first angle iron 11 and the second angle iron 13 are both provided with bolt holes for connecting the tower feet; a traction spring 17 is also arranged between the first support arm 10 and the second support arm 12, and the traction spring 17 is located on the side of the hinge shaft 19 away from the first angle iron 11 and the second angle iron 13.

[0051] The first support arm 10 and the second support arm 12 both rotate around the hinge shaft 19, and a rotation bearing is provided between the first support arm 10 and the hinge shaft 19, and a rotation bearing is provided between the second support arm 12 and the hinge shaft 19. During installation, the hinge shaft 19 and the two baffles 14 connected to the hinge shaft 19 remain stationary, and the first support arm 10 and the second support arm 12 rotate around the hinge shaft 19. The ends of the first support arm 10 and the second support arm 12 are provided with a first angle iron 11 and a second angle iron 13, and the first angle iron 11 and the second angle iron 13 are provided horizontally to increase the contact area between the first support arm 10 and the second support arm 12 and the tower foot, thereby improving the connection strength.

[0052] Bolt holes are provided on the first angle iron 11 and the second angle iron 13, and the first angle iron 11 and the second angle iron 13 are connected to the tower foot by means of bolts. A traction spring 17 is provided between the first support arm 10 and the second support arm 12, and the traction spring 17 is located at one end of the first support arm 10 and the second support arm 12 away from the first angle iron 11 and the second angle iron 13.

[0053] In the unstressed state, the traction spring 17 pulls the first support arm 10 and the second support arm 12 to move toward each other so that they overlap each other. At this time, the first support arm 10 and the second support arm 12 overlap and are on the same straight line, the first angle iron 11 and the second angle iron 13 are both connected to the tower foot, and the first support arm 10 or the second support arm 12 is connected to the length adjustment device, so that the support and adjustment between two adjacent tower feet can be realized.

[0054] like Figure 1 and Figure 2 As shown, the traction spring 17 is connected to the side walls of the first support arm 10 and the second support arm 12 or the two ends of the traction spring 17 are connected to the lower end of the first support arm 10 and the upper end of the second support arm 12 respectively.

[0055] As a specific implementation method of the tower root opening adjustment device provided by the present invention, please refer to Figure 1 and Figure 2The first support arm 10 is provided with a protractor 15 with an angle dimension, and the zero degree scale of the protractor 15 corresponds to the axis of the first support arm 10; the second support arm 12 is provided with a pointer 16 adapted to the protractor 15, and the pointer 16 corresponds to the axis of the second support arm 12, and the pointer 16 points to the protractor 15.

[0056] Specifically, a goniometer 15 is provided on the first support arm 10, the central angle of the goniometer 15 is 180°, the zero degree scale of the goniometer 15 is consistent with the axial direction of the first support arm 10, and the two ends of the goniometer 15 are respectively connected to the axis of the first support arm 10 on both sides of the hinge shaft 19. A pointer 16 is installed on the side of the second support arm 12 away from the second angle iron 13, and the connecting shaft of the pointer 16 extends downward to the upper end surface of the second support arm 12. Optionally, the pointer 16 is located on the side of the goniometer 15 away from the hinge shaft 19.

[0057] Optionally, the connecting shaft of the pointer 16 passes through the second support arm 12 in the longitudinal direction, and the connecting shaft of the pointer 16 is slidably connected to the second support arm 12. When the first support arm 10 and the second support arm 12 are set at an angle, the pointer 16 slides upward to the lower end of the protractor 15 or is horizontal with the protractor 15 to indicate the angle scale. When the first support arm 10 and the second support arm 12 overlap, the pointer 16 slides downward to fit on the second support arm 12 to avoid collision with the first support arm 10.

[0058] As a specific implementation method of the tower root opening adjustment device provided by the present invention, please refer to Figure 4 A gear set is arranged inside the fixed sleeve 20, and the gear set includes a rotating shaft penetrating the fixed sleeve 20 and a first gear 30 and a second gear 22 sleeved on the rotating shaft, and the first gear 30 and the second gear 22 are respectively located inside and outside the fixed sleeve 20; the first gear 30 is meshed with the toothed plates 29 on the two extension rods 21 at the same time, and the first gear 30 rotates to drive the extension rods 21 to move in opposite or reverse directions; the second gear 22 rotates synchronously with the first gear 30, and the second gear 22 is connected to the locking assembly to limit the rotation of the first gear 30.

[0059] Specifically, the driving component in the fixed sleeve 20 for driving the extension rod 21 to move is a gear set, which includes a rotating shaft passing through the fixed sleeve 20 and a first gear 30 and a second gear 22 arranged on the rotating shaft, wherein the first gear 30 is located on the inner side of the fixed sleeve 20, and the second gear 22 is located on the outer side of the fixed sleeve 20, and the first gear 30 and the second gear 22 rotate synchronously with the rotating shaft.

[0060] One end of the extension rod 21 extending into the fixing sleeve 20 is provided with a tooth plate 29, which is used to mesh with the first gear 30. When the first gear 30 rotates, the first gear 30 drives the gears on the two extension rods 21 meshing therewith to move simultaneously, thereby driving the two extension rods 21 to move in opposite directions or in opposite directions at the same time.

[0061] The rotating shaft passes through the upper and lower end surfaces of the fixed sleeve 20, and the upper end of the rotating shaft passes through the second gear 22 and extends upward. A coaxial hexagonal nut 24 is provided at the upper end of the rotating shaft. Figure 4 and Figure 5 When in use, the hexagonal nut 24 is screwed, the first gear 30 and the second gear 22 rotate simultaneously, and the first gear 30 drives the extension rod 21 meshed therewith to move simultaneously.

[0062] Optional, such as Figure 6 As shown, a threaded rod 28 is meshed on the outer side of the second gear 22, and the threaded rod 28 is connected to a driving motor 27. Under the action of the driving motor 27, the threaded rod 28 rotates to drive the second gear 22 to rotate, and the second gear 22 rotates to drive the rotating shaft and the first gear 30 to rotate; the first gear 30 and the toothed plate 29 cooperate to drive the two extension rods 21 to move.

[0063] A locking assembly is also provided on the outer side of the second gear 22. The second gear 22 is connected to or disconnected from the locking assembly to lock the rotating shaft.

[0064] Optionally, the rotating shaft is arranged in the middle of the fixed sleeve 20, and the two extension rods 21 are respectively arranged on both sides of the rotating shaft, and the two extension rods 21 are slidably connected to the inner side wall of the fixed sleeve 20. At least one pair of tensioning wheels 31 are symmetrically arranged inside the fixed sleeve 20, and the tensioning wheels 31 tighten the extension rods 21 against the inner side wall of the fixed sleeve 20 to prevent it from shaking. Figure 8 shown.

[0065] As a specific implementation method of the tower root opening adjustment device provided by the present invention, please refer to Figure 5 and Figure 6 The locking assembly includes a locking member 25 and a limiting member 23; the locking member 25 is rotatably connected to the fixing sleeve 20, the locking member 25 is located on one side of the second gear 22, and a locking portion is provided on the locking member 25, and the locking portion abuts between two adjacent teeth of the second gear 22 to prevent the second gear 22 from rotating; the limiting member 23 is located on the side of the second gear 22 away from the locking member 25, the limiting member 23 moves along the length direction of the fixing sleeve 20, and the limiting member 23 abuts against the inner side of the locking member 25 to limit the locking member 25.

[0066] Specifically, a locking member 25 is rotatably connected to the fixing sleeve 20 , and the locking member 25 is located at one side of the second gear 22 . A locking portion is provided on the locking member 25 , and the locking portion abuts between two adjacent teeth of the second gear 22 to prevent the second gear 22 from rotating.

[0067] The fixing sleeve 20 is provided with a locking member 25 on one side of the second gear 22; the locking member 25 is rotatably connected to the fixing sleeve 20 by means of a rotating shaft, and the locking member 25 is provided with a limiting portion, a locking portion, and a connecting portion in sequence along its length direction; the rotating shaft is provided on the connecting portion. The locking portion is located on the side of the locking member 25 close to the second gear 22, and the locking portion has a sharp tooth end extending outward. When the extension rod 21 moves to the required length, the locking member 25 is rotated to rotate around the rotating shaft until the sharp tooth end of the locking portion abuts between two teeth on the second gear 22.

[0068] When the sharp teeth of the locking portion abut between two teeth of the second gear 22 , the second gear 22 cannot rotate, and the first gear 30 coaxially arranged with the second gear 22 cannot rotate, thereby limiting the movement of the extension rod 21 .

[0069] See also Figure 5 and Figure 6 A positioning member 26 is provided on the fixing sleeve 20 . The positioning member 26 is located on a side of the hinge shaft 19 between the locking member 25 and the fixing sleeve 20 away from the second gear 22 . The positioning member 26 is connected to the locking member 25 by means of an elastic member.

[0070] A positioning member 26 is provided on the fixed sleeve 20 on the side of the rotating shaft away from the locking portion, and an elastic member is connected to the positioning member 26. The elastic member is connected to a positioning portion provided on the side of the connecting portion on the locking member 25 close to the second gear 22. The elastic member is a spring, one end of the spring is connected to the positioning member 26 on the fixed sleeve 20, and the other end of the spring is connected to the positioning portion. The spring is always in a stretched state. Under the elastic force of the spring, the locking member 25 is always subjected to a pulling force tending to one side of the second gear 22. Without being affected by other external forces, the locking portion of the locking member 25 is always located between the teeth on the second gear 22, maintaining the locking state of the second gear 22.

[0071] When the second gear 22 needs to be rotated, a force is applied to the locking member 25 to move away from the second gear 22, so that the locking portion of the locking member 25 is disengaged from the teeth of the second gear 22. After the locking member 25 is disengaged from the second gear 22, the second gear 22 is driven to rotate.

[0072] Optionally, when only the hexagonal nut 24 is provided on the second gear 22, the second gear 22 can only be driven manually, and locking members 25 can be provided on both sides of the second gear 22. The two locking members 25 are symmetrically arranged to achieve the purpose of balanced force and improve the locking effect.

[0073] Optionally, when the second gear 22 is driven in a meshing manner with the threaded rod 28, the locking member 25 is arranged on the side of the second gear 22 away from the threaded rod 28. The locking member 25 is used to average the force applied by the threaded rod 28 to the second gear 22. The locking member 25 and the threaded rod 28 work together to lock the second gear 22.

[0074] See also Figure 5 A limiting member 23 is provided on one side of the second gear 22 away from the positioning member 26 . The limiting member 23 moves along the length direction of the fixing sleeve 20 and is used to limit the locking member 25 .

[0075] A limiting member 23 is also provided on the fixing sleeve 20. The limiting member 23 includes a mounting member provided on the fixing sleeve 20. The mounting member is provided with a horizontal through hole. A limiting rod passes through the through hole and extends to a side close to the locking member until the end of the limiting rod abuts against the side wall of the locking member to prevent the locking member 25 from moving to a side close to the second gear 22, thereby avoiding contact between the locking portion and the second gear 22.

[0076] Optionally, the mounting piece is welded to the fixing sleeve 20, and a through hole with a circular cross section is provided on the mounting piece. The limiting rod is a screw rod, and a nut is provided at one end of the screw rod away from the second gear 22, and the nut is located on the outside of the mounting piece, and a nut is provided at one end of the screw rod close to the second gear 22, and the nut is located on the inside of the mounting piece. A spring is provided between the mounting piece and the nut, and the spring is always in a compressed state. Under the action of the spring, the nut is pressed against the outer wall of the mounting piece.

[0077] Optionally, a pull ring is provided on the nut.

[0078] The length adjustment assembly includes a plurality of fixed sleeves 20 connected in sequence, and two adjacent fixed sleeves 20 are connected by flanges. For the convenience of reuse, a flange 32 is provided at the end of the fixed sleeve 20. When in use, multiple fixed sleeves 20 can be assembled together, and the length adjustment can be achieved by controlling the extension rods 21 in the frontmost and rearmost fixed sleeves 20.

[0079] The extension rod 21 in the fixing sleeve 20 in the middle is detachable. A plurality of fixing sleeves 20 are connected in sequence, and the extension rod 21 can be arranged only in the fixing sleeves 20 at the front end and the rear end, thereby reducing the length of the extension rod 21 and reducing the cost.

[0080] See also Figure 1 The tower root opening adjustment method adopts the above-mentioned tower root opening adjustment device, and comprises the following steps:

[0081] S1. Install two corner support assemblies at both ends of the length adjustment assembly respectively; and cross-arrange two tower root adjustment assemblies up and down;

[0082] S2, connecting the first support arm 10 and the second support arm 12 of the corner support assembly to the tower foot, and fixing the locking member and the locking assembly;

[0083] S3. When the iron tower is ready to be hoisted into place, the locking assembly is opened, and the distance between the tower feet of the iron tower is fine-tuned by adjusting the length of the extension rod 21 extending out of the fixing sleeve 20.

[0084] Compared with the prior art, the tower root adjustment method provided by the present invention has the following characteristics: first, the corner support assembly and the length adjustment assembly must be assembled before installation, and the ends of the extension rods 21 extending from the two ends of the fixing sleeve 20 are respectively connected to the hinge shafts 19 of the two corner support assemblies; second, two groups of assembled root adjustment devices are selected, and the two groups of root adjustment devices are arranged up and down, and the two groups of root adjustment devices are cross-arranged to connect different diagonals respectively; that is, the first angle iron 11 on the first support arm 10 and the second angle iron 13 on the second support arm 12 are both connected to the tower foot, and then the locking piece and the locking assembly are adjusted to complete the locking of the first support arm 10 and the second support arm 12 and the locking of the extension rod 21; third, the iron tower is hoisted, and the root distance of the iron tower is checked after the iron tower is erected, and the tower foot is fine-tuned by adjusting the length of the extension rod 21.

[0085] The tower base adjustment method provided by the present invention adopts the above-mentioned tower base adjustment device and has all the beneficial effects thereof; it realizes the effect of increasing the supporting force between tower feet and real-time adjustment of deformed tower feet, thereby improving the installation efficiency of the tower.

[0086] Optionally, a mounting plate is provided at the lower end of the hinge shaft 19 , and a bolt hole connected to the extension rod 21 is provided on the mounting plate.

[0087] Optionally, in step S2, a length adjustment component is provided between two adjacent tower feet, and the length adjustment component is respectively connected to the first support arm 10 or the second support arm 12 on the two adjacent tower feet.

[0088] After installing two sets of tower foot adjustment devices, a length adjustment assembly is connected between two adjacent tower feet, and the end of the extension rod 21 of the length adjustment assembly is connected to the first support arm 10 or the second support arm 12. After installation, the locking assembly is adjusted to lock the length of the length adjustment assembly between the two tower feet. After the hoisting is completed, the length of the extension rod 21 of the length adjustment assembly is adjusted to achieve the purpose of fine-tuning to complete the installation of the tower foot.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Tower root opening adjustment device, It is characterized in that include: A corner support assembly, the corner support assembly comprising a first support arm and a second support arm hingedly connected by means of an angle adjustment assembly, the first support arm and the second support arm being respectively used to be connected to two inner side walls of the tower foot; the angle adjustment assembly comprising a hinge shaft which sequentially passes through the first support arm and the second support arm from top to bottom and a locking member arranged on the hinge shaft; A length adjustment component, the length adjustment component comprises a fixed sleeve and two extension rods respectively penetrating two ends of the fixed sleeve and extending outward, the extension rods being used to connect the hinge shaft; a locking component for limiting the extension rods is arranged in the fixed sleeve; A gear set is arranged in the fixing sleeve, and the gear set includes a rotating shaft penetrating the fixing sleeve and a first gear and a second gear sleeved on the rotating shaft, wherein the first gear and the second gear are respectively located inside and outside the fixing sleeve; the first gear is meshed with the toothed plates on the two extension rods at the same time, and the first gear rotates to drive the extension rods to move in opposite directions or reverse directions; The second gear rotates synchronously with the first gear, and the second gear is connected to the locking assembly to limit the rotation of the first gear; The locking assembly comprises: A locking member, the locking member is rotatably connected to the fixing sleeve, the locking member is located at one side of the second gear, a locking portion is provided on the locking member, the locking portion abuts between two adjacent teeth of the second gear to prevent the second gear from rotating; the locking portion has a sharp tooth end extending outward, and when the extension rod moves to a desired length, the locking member is rotated to rotate around the rotation axis until the sharp tooth end of the locking portion abuts between two teeth on the second gear; A limiting member, the limiting member is located on a side of the second gear away from the locking member, the limiting member moves along the length direction of the fixing sleeve, and the limiting member abuts against the inner side of the locking member to limit the locking member.

2. The tower base adjustment device according to claim 1, It is characterized in that The locking member comprises: Two baffles, both of which are arranged on the hinge shaft, and the two baffles are respectively located above the first support arm and below the second support arm, and a plurality of locking nails are slidably arranged on the baffles, and the plurality of locking nails are evenly distributed along a ring on the outside of the hinge shaft; the locking nails penetrate the baffles and extend to the first support arm or the second support arm; the locking nails on the two baffles correspond to each other or are staggered; A positioning hole is provided on the first support arm and the second support arm, and the positioning hole cooperates with the locking pin on the corresponding baffle plate to limit the first support arm and the second support arm.

3. The tower base adjustment device according to claim 2, It is characterized in that The locking nail comprises: A nail rod, the nail rod passes through the baffle, a nail cap is provided on the side of the nail rod away from the first support arm or the second support arm, an elastic member is provided between the nail cap and the baffle; an installation cavity is provided at one end of the nail rod away from the nail cap; an elastic pin is hinged in the installation cavity, and a limiting protrusion is provided on the outer side of the installation cavity to limit the rotation angle of the elastic pin.

4. The tower base adjustment device according to claim 1, It is characterized in that The first support arm and the second support arm are both mounted on the hinge shaft by means of a rotating bearing, the end of the first support arm is vertically connected to a first angle iron, the end of the second support arm is vertically connected to a second angle iron, the first angle iron is located above the second angle iron, and the first angle iron and the second angle iron are both provided with bolt holes for connecting to the tower feet; a traction spring is also arranged between the first support arm and the second support arm, and the traction spring is located on the side of the hinge shaft away from the first angle iron and the second angle iron.

5. The tower base adjustment device according to claim 4, It is characterized in that The first support arm is provided with a protractor with an angle dimension, and the zero degree scale of the protractor corresponds to the axis of the first support arm; the second support arm is provided with a pointer adapted to the protractor, and the pointer corresponds to the axis of the second support arm, and the pointer points to the protractor.

6. The tower base adjustment device according to claim 1, It is characterized in that The fixing sleeve is provided with a positioning member, the positioning member is located at a side of the hinge shaft between the locking member and the fixing sleeve away from the second gear, and the positioning member is connected to the locking member by means of a locking spring.

7. Tower root opening adjustment method, It is characterized in that The tower root opening adjustment device according to any one of claims 1 to 6 is adopted, comprising the following steps: S1. Install two corner support assemblies at both ends of the length adjustment assembly respectively; and cross-arrange two tower root adjustment assemblies up and down; S2, connecting the first support arm and the second support arm of the corner support assembly to the tower foot, and fixing the locking member and the locking assembly; S3. When the hoisting tower is ready to be put in place, open the locking assembly and fine-tune the distance between the tower feet by adjusting the length of the extension rod extending out of the fixing sleeve.

8. The tower root adjustment method according to claim 7, It is characterized in that In step S2, a length adjustment component is provided between two adjacent tower feet, and the length adjustment component is respectively connected to the first support arms or the second support arms on the two adjacent tower feet.

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