Pushing and hoisting device for extra-high voltage transmission tower cross beam

Abstract

The present application relates to the technical field of extra-high voltage power transmission, and relates to a pushing and hoisting device for an extra-high voltage transmission tower cross beam. The pushing and hoisting device of the present application comprises a floor derrick, a stay wire section, a first traction unit, a pushing section, a pushing unit and a second traction unit; the stay wire section and the pushing section are both arranged on the floor derrick; the first traction unit and the second traction unit are both arranged on the stay wire section; and the pushing unit is arranged on the pushing section. The extra-high voltage transmission tower cross beam comprises vertical pole units, middle cross arm side sections and a middle cross arm middle section; a first traction cable assembly of the first traction unit is used for pulling the pushing unit toward the stay wire section, and the pushing unit pushes the middle cross arm side sections upwards obliquely above the floor derrick, to eliminate the torsion of the vertical pole units toward the floor derrick; and construction workers do not need to pull the vertical pole units on the ground, and in a narrow mountain terrain, the first traction cable assembly can facilitate the building work of the extra-high voltage transmission tower.

Description

A jacking and hoisting device for the crossbeams of ultra-high voltage power towers Technical Field

[0001] This application belongs to the field of ultra-high voltage power transmission technology, and in particular relates to a jacking and hoisting device for the crossbeam of an ultra-high voltage power tower. Background Technology

[0002] Mountains account for 69% of my country's land area. Due to the limited power transmission corridors, most ultra-high voltage (UHV) projects are located in mountainous areas. For tower erection in mountainous areas, large cranes and other lifting machinery cannot enter the site, so ground-mounted gantry cranes are generally used for tower erection.

[0003] Ground-mounted gantry cranes are all lifted synchronously and balanced from both sides, with a lifting weight of 4-6 tons. Generally, large iron towers are around 100-180m in height and weigh between 120-250 tons, with each section of tower material weighing between 1-10 tons. Therefore, the lifting weight is a significant limiting factor. If a single piece exceeds the weight limit, it is generally split into front and rear sections for controlled lifting and segmented installation.

[0004] For large ultra-high voltage (UHV) goblet-shaped transmission towers, due to their large size, the central crossbeams are exceptionally long. Typically, the crossbeams are divided into three sections, each weighing 4-10 tons, for a total weight of 10-20 tons. Due to the limited space on the hillside terrain of the tower assembly site, it is difficult to assemble them into a single unit. Therefore, a segmented hoisting and high-altitude docking construction method must be adopted. For crossbeams with joints in the middle, aligning the joint points in the air is not easy, especially in narrow mountainous terrain, making the docking of the crossbeams extremely difficult.

[0005] Some installation methods that involve pulling the crossbeam segments diagonally upwards towards the ground pole cannot overcome the lateral force exerted on the vertical pole by the crossbeam segments due to their own weight, making it uncontrollable when aligning the joint points.

[0006] Therefore, there is an urgent need for a jacking and hoisting device for the crossbeams of UHV power towers. The existing installation method of pulling the crossbeam segments diagonally upwards towards the ground pole cannot overcome the lateral force generated by the crossbeam segments on the vertical pole due to their own weight, and the problem of misalignment of the joint points. Summary of the Invention

[0007] Based on the above analysis, the embodiments of this application aim to provide a jacking and hoisting device for the crossbeam of an ultra-high voltage power tower, which solves the problem that the existing installation method of pulling the crossbeam segments obliquely upwards towards the ground pole cannot overcome the lateral component force generated by the crossbeam segments on the vertical pole due to their own weight, and the joint points cannot be aligned.

[0008] The purpose of this application is mainly achieved through the following technical solutions:

[0009] A pushing hoisting device for an extra-high voltage tower beam, the extra-high voltage tower beam comprising a vertical rod unit, a middle cross arm edge section and a middle cross arm middle section, the middle cross arm edge section comprising an upper main material part and a lower main material part, the hoisting device comprising a floor embracing pole, a first pulling unit, a pushing unit and a second pulling unit, the first pulling unit, the pushing unit and the second pulling unit being arranged on the floor embracing pole, the first pulling unit being used for pulling the pushing unit, the pushing unit being used for pushing the middle cross arm edge section to the obliquely upward direction away from the floor embracing pole, the second pulling unit being used for pulling the middle cross arm edge section to the obliquely upward direction toward the floor embracing pole;

[0010] The pushing unit comprises a first pushing assembly and a second pushing assembly, the first pushing assembly and the second pushing assembly being hinged; under the pulling of the first pulling unit, the angle between the first pushing assembly and the second pushing assembly increases, so as to push the lower main material part to the obliquely upward direction away from the floor embracing pole, and eliminate the torsion of the vertical rod unit to the floor embracing pole caused by the gravity of the middle cross arm edge section;

[0011] The first pushing assembly comprises a cross bar, an elongated rod and a hinged shaft sleeve, the hinged shaft sleeve being arranged on the elongated rod, the cross bar being connected with the floor embracing pole, the cross bar being a tubular cross bar, the elongated rod being capable of being connected with the cross bar and being capable of being inserted into or extended out of the cross bar, the hinged shaft sleeve being used for being connected with the second pushing assembly;

[0012] The second pushing assembly comprises a hinged shaft rod and a first inclined pushing rod, the hinged shaft rod being rotationally connected with the hinged shaft sleeve, one end of the first inclined pushing rod being connected with the hinged shaft rod, the other end of the first inclined pushing rod being capable of being connected with the lower main material part.

[0013] Further, the cross bar and the first inclined pushing rod are both rigid rods, and the total length of the cross bar and the first inclined pushing rod is not less than the distance from the end of the middle cross arm edge section to the floor embracing pole.

[0014] Further, the first pushing assembly further comprises a positioning hole and a positioning pin, the positioning hole being arranged on the cross bar, the other end of the elongated rod being provided with a connecting hole, the positioning pin being capable of simultaneously connecting the positioning hole and the connecting hole.

[0015] Further, the positioning hole is a plurality of positioning holes, the connecting hole is connected with different positioning holes through the positioning pin, the length of the elongated rod extended out of the cross bar can be changed and maintained.

[0016] Furthermore, there are two of each of the crossbar, the extension rod, and the hinged bushing. The jacking unit also includes a first connecting part, a second connecting part, and a traction ring. The two ends of the first connecting part are respectively fixedly connected to the two crossbars. The two ends of the second connecting part are respectively fixedly connected to the two extension rods. The traction ring is disposed on the first connecting part and is used to connect with the first traction unit.

[0017] Furthermore, the second push assembly also includes a second inclined push rod, which is disposed on the hinge shaft.

[0018] Furthermore, the pushing unit also includes a position nut, which is threadedly connected to the hinge shaft and disposed between the two hinge bushings. Rotating the position nut allows the hinge shaft to slide within the hinge bushings.

[0019] Furthermore, the pushing unit also includes a gear and a motor, the gear and the motor are connected, the motor is disposed on the second connecting part, and the motor can drive the gear to rotate, thereby driving the position nut to rotate.

[0020] Furthermore, the first inclined push rod is hinged to the hinge shaft; the second push assembly also includes a transition ring, which is rotatably connected to the first inclined push rod and is used to connect to the lower main material part.

[0021] Furthermore, it also includes a hanging unit, which includes a connector. The connector includes a first hanging ring portion, a second hanging ring portion, and a tightening portion. The first hanging ring portion and the second hanging ring portion are respectively threaded to both ends of the tightening portion, and the rotation directions of the threads at both ends of the tightening portion are opposite.

[0022] Compared with the prior art, this application can achieve at least one of the following beneficial effects:

[0023] (1) The first pull cable assembly of the hoisting device of this application is used to pull the push unit in the direction of the guy wire section. The push unit pushes the middle crossarm side section obliquely upward away from the ground pole, eliminating the torsion of the pole unit in the direction of the ground pole. Construction personnel do not need to pull the pole unit on the ground. In the narrow mountainous terrain, the first pull cable assembly can facilitate the construction of UHV power towers.

[0024] (2) The total length of the crossbar and the first inclined push rod of this application is not less than the distance from the end of the middle crossarm side section to the side wall of the push section, and the position of the push section is lower than the lower main material part. Under the pull of the first traction cable assembly, the angle between the crossbar and the first inclined push rod will increase, thereby pushing the lower main material part obliquely upward away from the ground pole, eliminating the torsion of the upright unit towards the ground pole caused by the gravity of the middle crossarm side section;

[0025] (3) Rotating the position nut of this application allows the hinge shaft to slide within the hinge sleeve, thereby pulling the first inclined push rod closer to the traction ring and simultaneously pushing the second inclined push rod away from the traction ring, thereby adjusting the distance between the first inclined push rod, the second inclined push rod and the traction ring, thereby adjusting the position of the lower main material part in the front-back direction, facilitating the connection between the middle section of the crossarm and the side section of the crossarm.

[0026] (4) By rotating the first inclined push rod of this application, the distance between the adapter ring and the second inclined push rod can be changed, thereby enabling the second jacking assembly to be used for jacking the side sections of the crossarm of various specifications.

[0027] (5) The second pulling unit of this application can pull the middle crossarm side section towards the ground pole, making up for the deficiency of the jacking unit that can only push the middle crossarm side section away from the ground pole, correcting the problem that the jacking unit may push the middle crossarm side section away from the middle crossarm middle section, and ensuring that the middle crossarm side section and the middle crossarm middle section are smoothly connected.

[0028] In this application, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this application will be set forth in the following description, and some advantages may become apparent from the specification or be learned by practicing this application. The objectives and other advantages of this application can be realized and obtained from the content specifically pointed out in the text and drawings. Attached Figure Description

[0029] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Throughout the drawings, the same reference numerals denote the same parts.

[0030] Figure 1 is a schematic diagram of the overall structure of the UHV tower during the hoisting of the crossarm side section;

[0031] Figure 2 is a schematic diagram of the overall structure of the UHV tower when the middle section of the crossarm is being hoisted.

[0032] Figure 3 is a schematic diagram of the overall structure of the hoisting device;

[0033] Figure 4 is an enlarged structural diagram of region A in Figure 3;

[0034] Figure 5 is a schematic diagram of the overall structure of the lifting unit;

[0035] Figure 6 is an enlarged structural diagram of region B in Figure 5;

[0036] Figure 7 is a schematic diagram of the overall structure of the guy wire joint;

[0037] Figure 8 is a schematic diagram of the overall structure of the jacking section and jacking unit;

[0038] Figure 9 is a schematic diagram of the exploded structure of the jacking unit;

[0039] Figure 10 is a schematic diagram of the overall structure of the connector.

[0040] Reference numerals: 1-Landing mast; 2-Lifting unit; 3-Guard cable section; 4-First traction cable assembly; 5-Pushing section; 6-Pushing unit; 7-Hanging unit; 8-Second traction cable assembly; 11-Mast section; 12-Main mast section; 13-Rocker arm section; 14-Mast top section; 21-First rocker arm; 22-Second rocker arm; 31-Tethering section body; 32-First guard cable eyelet hole; 33-Second guard cable eyelet hole; 41-Tether cable; 42-Electric hoist; 43-Force sensor; 51-Pushing section body; 52-Pushing lug; 61-First pushing assembly; 62-Second pushing assembly; 63-First connecting part; 64-Second connecting part; 65-Tethering ring; 66-Position nut; 67-Gear ; 68-Motor; 71-First hanger; 72-Second hanger; 73-Connector; 101-Tower base; 102-Crossarm unit; 103-Upright unit; 104-Side section of middle crossarm; 105-Middle section of middle crossarm; 106-Guitar wire; 611-Crossbar; 612-Shaft pin; 613-Extended rod; 614-Hinged bushing; 615-Positioning hole; 616-Positioning pin; 621-Hinged shaft; 622-First inclined push rod; 623-Second inclined push rod; 624-Transfer ring; 731-First ring part; 732-Second ring part; 733-Tightening part; 1041-Upper main material part; 1042-Lower main material part; 1051-Middle section front piece; 1052-Middle section rear piece. Detailed Implementation

[0041] The preferred embodiments of this application are described in detail below with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of this application to illustrate the principles of this application, but are not intended to limit the scope of this application.

[0042] As shown in Figures 1 and 2, the current large-scale ultra-high voltage goblet-shaped tower includes a tower base 101, two horizontal arm units 102, two vertical pole units 103, and a crossbeam. The two horizontal arm units 102 are symmetrically arranged at the top of the tower base 101. One end of the pole unit 103 is connected to the horizontal arm unit 102, and the other end of the pole unit 103 is connected to the crossbeam. The crossbeam includes a middle crossarm side section 104 and a middle crossarm middle section 105. One end of the middle crossarm side section 104 is connected to the pole unit 103, and the other end of the middle crossarm side section 104 is screwed to the middle crossarm middle section 105 using fasteners.

[0043] When assembling a large ultra-high voltage goblet-shaped iron tower, the lifting unit 2 on the ground-mounted gantry 1 is used to lift each section of the tower synchronously and in a balanced manner. Then, the sections are stacked and installed upwards one by one. When one end of the crossarm side section 104 is connected to the upright unit 103, the weight of the crossarm side section 104 will cause the upright unit 103 to twist towards the ground-mounted gantry 1. The axis of twisting is located at the connection between the upright unit 103 and the crossarm unit 102, which causes the screw holes of the middle section 105 of the crossarm to be misaligned with the screw holes of the crossarm side section 104, making it impossible to connect the screws.

[0044] The current countermeasure for this type of torsion is to connect the guy wire 106 to the pole unit 103. The tower builders stand on the ground and use the guy wire 106 to pull the pole unit 103 away from the ground-mounted support pole 1 to counteract the torsion of the pole unit 103 towards the ground-mounted support pole 1 caused by the weight of the middle crossarm side section 104. This allows the screw holes of the middle section 105 of the middle crossarm to be aligned with the screw holes of the middle crossarm side section 104, thus enabling screw connection.

[0045] The above-mentioned methods cannot precisely control the traction distance, make it difficult to accurately adjust the position of the screw holes during docking, and pose a risk of forced pulling, which could damage the tower material itself. Especially in mountainous terrain with limited space, where there is not enough ground for builders to stand and pull the guy wire 106, and where the screw holes of the middle section 105 of the crossarm are misaligned with those of the side section 104 of the crossarm, the docking of the crossbeams becomes extremely difficult.

[0046] Therefore, a jacking and hoisting device for the crossbeams of ultra-high voltage power towers is needed to solve the above problems.

[0047] A specific embodiment of this application, as shown in Figures 1 and 3, discloses a jacking and hoisting device (hereinafter referred to as the hoisting device) for a crossbeam of an ultra-high voltage power tower. The device includes a ground-mounted support pole 1, a lifting unit 2, a guy wire section 3, a first traction unit, a jacking section 5, a jacking unit 6, and a second traction unit. The lifting unit 2, guy wire section 3, and jacking section 5 are all mounted on the ground-mounted support pole 1. The first and second traction units are both mounted on the guy wire section 3. The jacking unit 6 is mounted on the jacking section 5. The first traction unit is used to pull the jacking unit 6, causing it to push the middle crossbeam side section 104 obliquely upwards away from the ground-mounted support pole 1. The second traction unit is used to pull the middle crossbeam side section 104 obliquely upwards towards the ground-mounted support pole 1, aligning the screw holes of the middle crossbeam section 105 with those of the middle crossbeam side section 104, thereby connecting the middle crossbeam section 105 and the middle crossbeam side section 104 with screws.

[0048] Preferably, as shown in Figures 3 and 4, the landing mast 1 includes a mast section 11 and a main mast section 12, which are connected by a rocker arm section 13. The main mast section 12 is composed of multiple standard sections, and the mast section 11 includes a mast top section 14 and multiple standard sections. The mast top section 14 is located at the top of the mast section 11.

[0049] Preferably, as shown in Figures 5 and 6, the lifting unit 2 includes a first rocker arm 21 and a second rocker arm 22. The first rocker arm 21 and the second rocker arm 22 have the same structure. The first rocker arm 21 and the second rocker arm 22 are symmetrically arranged on the rocker arm section 13 with the ground support pole 1 as the center line. The first rocker arm 21 and the second rocker arm 22 are rotatably connected to the rocker arm section 13. The first rocker arm 21 and the second rocker arm 22 are used to lift various accessories of the UHV power tower.

[0050] For the JC30401G type steel tower, the weight of the middle crossarm side section 104 is 11.46 / 2 = 5.73 tons, and the weight of the middle crossarm middle section 105 is 11.95 tons. The single lifting weight of both the middle crossarm side section 104 and the middle crossarm middle section 105 exceeds 5 tons, making it impossible to lift them as a whole, as this exceeds the allowable operating radius of the gantry crane. During lifting, after removing the auxiliary materials of the middle crossarm side section 104, its lifting weight is controlled to be less than 5 tons, and the first rocker arm 21 and the second rocker arm 22 are used to complete the lifting and positioning.

[0051] After the two crossarm side sections 104 are hoisted, the middle section 105 of the crossarm needs to be disassembled into a front section 1051 and a rear section 1052, which are then hoisted using the first rocker arm 21 and the second rocker arm 22 respectively. At this time, the first rocker arm 21 is in front and the second rocker arm 22 is behind. When one end of the crossarm side section 104 is connected to the upright unit 103, the weight of the crossarm side section 104 will twist the upright unit 103 towards the ground support pole 1, causing the screw holes of the middle section 105 and the crossarm side section 104 to misalign. In the air, the middle section 105 and the crossarm side section 104 cannot be connected, and the overall assembly of the crossbeam cannot be completed.

[0052] At a height of over 100 meters, the first rocker arm 21 and the second rocker arm 22 were already being used to lift the front section 1051 and the rear section 1052 of the middle section. There were no other lifting equipment available to lift the side section 104 of the middle crossarm. For the entire ground-mounted gantry 1, the balance of torque on both sides is a crucial factor. Therefore, lifting points cannot be arbitrarily set on the ground-mounted gantry 1. The lifting mechanism must be reasonably designed to ensure the overall torque balance of the ground-mounted gantry 1.

[0053] Preferably, as shown in Figure 7, the guy wire section 3 is located at one end of the mast top section 14. The guy wire section 3 includes a traction section body 31, a first guy wire hook hole 32, and a second guy wire hook hole 33. The traction section body 31 has a cubic frame structure. There are two first guy wire hook holes 32, which are respectively located on two opposite side walls of the traction section body 31. There are four second guy wire hook holes 33, which are respectively located at the four corners of the traction section body 31, so as to achieve overall torque balance of the landing mast 1. The first guy wire hook hole 32 is used to connect the first traction unit, and the second guy wire hook hole 33 is used to connect the second traction unit.

[0054] Preferably, as shown in Figures 4 and 6, the first pulling unit includes a first pulling cable assembly 4. One end of the first pulling cable assembly 4 can be connected to the first guy wire hanging eye hole 32, and the other end of the first pulling cable assembly 4 can be connected to the jacking unit 6. The first pulling cable assembly 4 is used to pull the jacking unit 6 in the direction of the guy wire section 3. The jacking unit 6 pushes the middle crossarm side section 104 obliquely upward away from the ground-mounted pole 1, eliminating the torsion of the pole unit 103 in the direction of the ground-mounted pole 1. Construction personnel do not need to pull the pole unit 103 on the ground. In mountainous terrain with narrow areas, the first pulling cable assembly 4 can facilitate the construction of ultra-high voltage power towers.

[0055] Preferably, there are two first tension cable assemblies 4, which are respectively connected to two first tension cable hanging eye holes 32 to ensure that the tension on the tension cable section 3 is balanced.

[0056] Preferably, the first pull cable assembly 4 includes a pull cable 41 and an electric hoist 42. The electric hoist 42 is mounted on the pull cable 41 and pulls the push unit 6 by pulling the pull cable 41.

[0057] Preferably, the pull cable 41 is a flexible pull cable that can be bent. One end of the pull cable 41 can be connected to the first pull line hanging eye hole 32, and the other end of the pull cable 41 can be connected to the jacking unit 6. The pull cable 41 is provided with a first buckle (not shown in the figure) and a second buckle (not shown in the figure). One end of the electric hoist 42 is connected to the first buckle, and the other end of the electric hoist 42 is connected to the second buckle. The electric hoist 42 can pull the first buckle closer to the second buckle, thereby pulling the jacking unit 6 towards the pull line section 3. Compared with the arrangement where each end of the electric hoist 42 is connected to a traction rope, if the electric hoist 42 fails and disconnects, the pull cable 41 can still remain intact, preventing the jacking unit 6 and the middle crossarm side section 104 from falling, and preventing dangerous situations or property damage.

[0058] Preferably, the first pulling unit also includes a controller (not shown in the figure), and the electric hoist 42 is a remote-controlled electric hoist, which can be remotely controlled by the construction personnel to extend and retract the electric hoist 42.

[0059] Preferably, the first traction unit further includes a tension sensor 43 and a horizontal tilt sensor. The tension sensor 43 is installed on the traction cable 41 and is used to measure the tension data of the first traction cable assembly 4 and transmit it to the controller. The horizontal tilt sensor is installed on the middle crossarm side section 104 and is used to measure the tilt angle of the middle crossarm side section 104 and transmit it to the controller. When the middle crossarm side section 104 is detected to be in a horizontal state, the construction personnel can perform the docking operation between the middle crossarm middle section 105 and the middle crossarm side section 104.

[0060] Preferably, as shown in Figures 4 and 8, the jacking section 5 is installed on the main pole section 12. The jacking section 5 includes a jacking section body 51 and jacking lugs 52. The jacking section body 51 is a cubic frame structure, and there are 4 jacking lugs 52. The 4 jacking lugs 52 are respectively installed at the 4 corners of the jacking section body 51 so as to achieve the overall torque balance of the landing pole 1.

[0061] Preferably, the middle crossbeam side section 104 includes an upper main material part 1041, a lower main material part 1042 and a support rod, and the upper main material part 1041 and the lower main material part 1042 are connected by the support rod.

[0062] Preferably, the jacking unit 6 includes a first jacking assembly 61 and a second jacking assembly 62, which are hinged together. The tension cable 41 can be connected to the first jacking assembly 61.

[0063] Preferably, as shown in Figures 8 and 9, the first jacking assembly 61 includes a crossbar 611, a pivot pin 612, an extension rod 613, and a hinged bushing 614. The hinged bushing 614 is disposed at one end of the extension rod 613. The crossbar 611 is hinged to the jacking lug 52 via the pivot pin 612. The crossbar 611 is a tubular crossbar. The extension rod 613 can be connected to the crossbar 611 and can be inserted into or extended from the crossbar 611. The extension rod 613 is used to lengthen the crossbar 611, enabling the jacking unit 6 to be applicable to the construction of various specifications of iron towers. The hinged bushing 614 is used to connect to the second jacking assembly 62.

[0064] Preferably, the second push assembly 62 includes a hinge shaft 621 and a first inclined push rod 622. The hinge shaft 621 is rotatably connected to the hinge bushing 614. One end of the first inclined push rod 622 is connected to the hinge shaft 621, and the other end of the first inclined push rod 622 can be connected to the lower main material part 1042.

[0065] Preferably, both the crossbar 611 and the first inclined push rod 622 are rigid rods, and the total length of the crossbar 611 and the first inclined push rod 622 is not less than the distance from the end of the middle crossbar side section 104 to the side wall of the push section 5. The position of the push section 5 is lower than the lower main material part 1042. Under the pull of the first traction cable assembly 4, the angle between the crossbar 611 and the first inclined push rod 622 will increase, thereby pushing the lower main material part 1042 obliquely upward away from the ground support pole 1. This eliminates the torsion of the upright unit 103 towards the ground support pole 1 caused by the gravity of the middle crossbar side section 104, so that the screw hole of the middle crossbar middle section 105 can be aligned with the screw hole of the middle crossbar side section 104, thereby allowing the middle crossbar middle section 105 and the middle crossbar side section 104 to be connected by screws smoothly.

[0066] Preferably, to prevent the extension rod 613 from detaching from the crossbar 611, the first pushing assembly 61 further includes a positioning hole 615 and a positioning pin 616. The positioning hole 615 is provided on the crossbar 611, and the other end of the extension rod 613 is provided with a connecting hole (not shown in the figure). The positioning pin 616 can simultaneously connect the positioning hole 615 and the connecting hole, thereby locking the connection between the extension rod 613 and the crossbar 611 and preventing the extension rod 613 from detaching from the crossbar 611. Preferably, there are multiple positioning holes 615. By connecting the connecting hole to different positioning holes 615 through the positioning pin 616, the length of the extension rod 613 extending out of the crossbar 611 can be changed and maintained, which facilitates the positioning of the hanging unit 7.

[0067] Preferably, for ease of jacking operation, there are two crossbars 611, two extension rods 613, and two hinged bushings 614. The jacking unit 6 also includes a first connecting part 63, a second connecting part 64, and a pulling ring 65. The first connecting part 63 is a frame-type connecting part, with two crossbars 611 fixedly connected to its two ends respectively; the second connecting part 64 is a connecting rod, with two extension rods 613 fixedly connected to its two ends respectively. The pulling ring 65 is disposed on the first connecting part 63 and is equidistant from the two crossbars 611. The pulling ring 65 is used to connect to the first pulling cable assembly 4, which can pull two crossbars 611 at a time.

[0068] Preferably, the second pushing assembly 62 further includes a second inclined push rod 623, which is disposed on the hinge shaft 621 and is coplanar with the first inclined push rod 622. The first inclined push rod 622 and the second inclined push rod 623 are respectively used to push the front and rear pieces of the lower main material part 1042, and the pushing unit 6 can push the front and rear pieces of the lower main material part 1042 simultaneously.

[0069] To adjust the lateral position of the second jacking assembly 62 and the first jacking assembly 61, preferably, the jacking unit 6 further includes a position nut 66, which is threadedly connected to the hinge shaft 621 and is located between two hinge bushings 614. Rotating the position nut 66 allows the hinge shaft 621 to slide within the hinge bushings 614, thereby pulling the first inclined push rod 622 closer to the traction ring 65 and simultaneously pushing the second inclined push rod 623 away from the traction ring 65. Adjusting the distance between the first inclined push rod 622, the second inclined push rod 623 and the traction ring 65 allows the position of the lower main material part 1042 to be adjusted in the front-back direction, facilitating the docking of the middle section 105 of the middle crossarm and the side section 104 of the middle crossarm.

[0070] Preferably, in order to drive the position nut 66, the outer wall of the position nut 66 is provided with multiple drive teeth. The pushing unit 6 also includes a gear 67 and a motor 68. The gear 67 and the motor 68 are connected. The motor 68 is disposed on the second connecting part 64 and is connected to the controller. The gear 67 can be connected to the drive teeth. The controller can control the motor 68 to drive the gear 67 to rotate, thereby driving the position nut 66 to rotate. The front and rear positions of the second pushing assembly 62 can be remotely adjusted in the front and rear direction, thereby adjusting the position of the lower main material part 1042.

[0071] Preferably, to change the distance between the first inclined push rod 622 and the second inclined push rod 623, the first inclined push rod 622 is hinged to the hinge shaft 621. The second jacking assembly 62 further includes a transition ring 624, which is disposed on the first inclined push rod 622 and rotatably connected to it. The transition ring 624 is used to connect to the lower main material section 1042. By rotating the first inclined push rod 622, the distance between the transition ring 624 and the second inclined push rod 623 can be changed, thereby enabling the second jacking assembly 62 to be suitable for jacking various specifications of the middle crossarm side sections 104 with different distances between the front and rear pieces of the lower main material section 1042.

[0072] Preferably, there are two jacking units 6, which are symmetrically arranged on both sides of the jacking section body 51 in order to balance the load of the jacking section 5, the pull line section 3 and the ground support pole 1.

[0073] Preferably, as shown in FIG4, the hoisting device of this embodiment further includes a hanging unit 7, which is used to connect the lower main material part 1042 to the pushing unit 6, to connect the upper main material part 1041 to the second pulling unit, and also to connect the upper main material part 1041 to the lower main material part 1042.

[0074] Preferably, the hanging unit 7 includes a first hanging member 71, a second hanging member 72, and a connecting member 73. The first hanging member 71 can be connected to the lower main material part 1042 by screws, and the second hanging member 72 can be connected to the upper main material part 1041 by screws. The first hanging member 71 and the second hanging member 72 are connected by the connecting member 73. The first hanging member 71 is used to connect the lower main material part 1042 and the pushing unit 6, and the second hanging member 72 is used to connect the upper main material part 1041 and the second pulling unit.

[0075] Preferably, as shown in FIG10, the connector 73 includes a first hanging ring portion 731, a second hanging ring portion 732, and a tightening portion 733. The first hanging ring portion 731 and the second hanging ring portion 732 are respectively threadedly connected to both ends of the tightening portion 733. The first hanging ring portion 731 can be connected to the first suspension hole, and the second hanging ring portion 732 can be connected to the second suspension hole 734. The rotation directions of the threads at both ends of the tightening portion 733 are opposite. By rotating the tightening portion 733, the first hanging ring portion 731 and the second hanging ring portion 732 can move towards or away from each other, thereby pulling the first hanger 71 and the second hanger 72 closer or further apart.

[0076] Preferably, as shown in Figure 4, the second pulling unit includes a second pulling cable assembly 8. The structure of the second pulling cable assembly 8 is the same as that of the first pulling cable assembly 4. One end of the second pulling cable assembly 8 can be connected to the second guy wire hanging eye hole 33, and the other end of the second pulling cable assembly 8 can be connected to the second hanger 72. The second pulling cable assembly 8 is used to pull the middle crossarm side section 104 towards the guy wire section 3. The second pulling unit can pull the middle crossarm side section 104 towards the ground support pole 1, making up for the deficiency of the jacking unit 6, which can only push the middle crossarm side section 104 away from the ground support pole 1, and correcting the problem that the jacking unit 6 may push the middle crossarm side section 104 away from the middle crossarm middle section 105, ensuring that the middle crossarm side section 104 and the middle crossarm middle section 105 are smoothly connected.

[0077] To facilitate the installation of the guy wire section 3, preferably, the installation device in this embodiment further includes a first support section. The first support section is a cubic frame structure and can be connected to the guy wire section 3. The sum of the height of the guy wire section 3 and the height of the first support section is equal to the height of the standard section. The guy wire section 3 and the first support section together constitute the guy wire section assembly. The guy wire section assembly can be installed on the ground support pole 1 in the same way as the standard section, which facilitates the installation of the guy wire section 3.

[0078] To facilitate the installation of the jacking section 5, preferably, the installation device in this embodiment further includes a second support section. The second support section is a cubic frame structure and can be connected to the jacking section 5. The sum of the height of the jacking section 5 and the height of the second support section is equal to the height of the standard section. The jacking section 5 and the second support section together constitute a guy wire section assembly. The guy wire section assembly can be installed on the ground support pole 1 in the same way as the standard section, which facilitates the installation of the jacking section 5.

[0079] Compared with the prior art, the first tension cable assembly 4 provided in this embodiment is used to pull the jacking unit 6 towards the direction of the guy wire section 3. The jacking unit 6 pushes the middle crossarm side section 104 obliquely upward away from the ground-mounted pole 1, eliminating the torsion of the pole unit 103 towards the ground-mounted pole 1. Construction personnel do not need to pull the pole unit 103 on the ground. In mountainous terrain with narrow areas, the first tension cable assembly 4 can facilitate the construction of ultra-high voltage power towers. The total length of the crossarm 611 and the first oblique push rod 622 is not less than the end length of the middle crossarm side section 104. The distance from the main body to the side wall of the push section 5, and the position of the push section 5 is lower than the lower main body 1042, under the pull of the first traction cable assembly 4, the angle between the crossbar 611 and the first inclined push bar 622 will increase, thereby pushing the lower main body 1042 obliquely upward away from the ground support pole 1, eliminating the torsion of the upright unit 103 towards the ground support pole 1 caused by the gravity of the middle crossbar side section 104; the position nut 66 is threadedly connected to the hinge shaft 621, and the position nut 66 is located between the two hinge shaft sleeves 614, rotating the position nut The female 66 allows the hinge shaft 621 to slide within the hinge sleeve 614, thereby pulling the first inclined push rod 622 closer to the traction ring 65 and simultaneously pushing the second inclined push rod 623 away from the traction ring 65. This adjusts the distance between the first inclined push rod 622, the second inclined push rod 623, and the traction ring 65, thus allowing adjustment of the position of the lower main material section 1042 in the front-rear direction, facilitating the connection between the middle section 105 and the side section 104 of the middle crossarm. Rotating the first inclined push rod 622 increases the distance between the adapter ring 624 and the second inclined push rod 623. The second jacking assembly 62 can be modified to be used for jacking various specifications of the middle crossarm side section 104 with different distances between the front and rear sections of the lower main material section 1042; the second pulling unit can pull the middle crossarm side section 104 towards the ground support pole 1, making up for the deficiency of the jacking unit 6 which can only push the middle crossarm side section 104 away from the ground support pole 1, correcting the problem that the jacking unit 6 may push the middle crossarm side section 104 away from the middle crossarm middle section 105, and ensuring that the middle crossarm side section 104 and the middle crossarm middle section 105 are smoothly connected.

[0080] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A jacking and hoisting device for a crossbeam of an ultra-high voltage power tower, the crossbeam of the ultra-high voltage power tower comprising a pole unit (103), a side section of the middle crossarm (104) and a middle section of the middle crossarm (105), the side section of the middle crossarm (104) comprising an upper main material part (1041) and a lower main material part (1042); Its features are, The hoisting device includes a ground-mounted support pole (1), a first pulling unit, a pushing unit (6), and a second pulling unit. The first pulling unit, the pushing unit (6), and the second pulling unit are all mounted on the ground-mounted support pole (1). The first pulling unit is used to pull the pushing unit (6). The pushing unit (6) is used to push the middle crossarm side section (104) obliquely upward away from the ground-mounted support pole (1). The second pulling unit is used to pull the middle crossarm side section (104) obliquely upward in the direction of the ground-mounted support pole (1). The jacking unit (6) includes a first jacking component (61) and a second jacking component (62), which are hinged together. Under the pull of the first pulling unit, the angle between the first jacking component (61) and the second jacking component (62) increases, thereby jacking the main material part (1042) obliquely upward away from the ground support pole (1), eliminating the torsion of the upright unit (103) in the direction of the ground support pole (1) caused by the gravity of the middle crossbeam side section (104). The first jacking assembly (61) includes a crossbar (611), an extension rod (613), and a hinged bushing (614). The hinged bushing (614) is disposed on the extension rod (613). The crossbar (611) is connected to the ground support rod (1). The crossbar (611) is a tubular crossbar. The extension rod (613) can be connected to the crossbar (611) and can be inserted into or extended from the crossbar (611). The hinged bushing (614) is used to connect to the second jacking assembly (62). The second push assembly (62) includes a hinge shaft (621) and a first inclined push rod (622). The hinge shaft (621) is rotatably connected to the hinge bushing (614). One end of the first inclined push rod (622) is connected to the hinge shaft (621), and the other end of the first inclined push rod (622) can be connected to the lower main material part (1042).

2. The jacking and hoisting device for the crossbeam of an ultra-high voltage power tower according to claim 1, characterized in that, Both the crossbar (611) and the first inclined push rod (622) are rigid rods, and the total length of the crossbar (611) and the first inclined push rod (622) is not less than the distance from the end of the middle crossbar side section (104) to the ground support pole (1).

3. The jacking and hoisting device for the crossbeam of an ultra-high voltage power tower according to claim 1, characterized in that, The first push assembly (61) further includes a positioning hole (615) and a positioning pin (616). The positioning hole (615) is provided on the crossbar (611), and the other end of the extension rod (613) is provided with a connecting hole. The positioning pin (616) can connect the positioning hole (615) and the connecting hole at the same time.

4. The jacking and hoisting device for the crossbeam of an ultra-high voltage power tower according to claim 3, characterized in that, There are multiple positioning holes (615). The connecting hole is connected to different positioning holes (615) by the positioning pin (616), which can change and maintain the length of the extension rod (613) extending out of the crossbar (611).

5. The jacking and hoisting device for the crossbeam of an ultra-high voltage power tower according to claim 1, characterized in that, There are two of each of the crossbar (611), the extension rod (613), and the hinged bushing (614). The pushing unit (6) also includes a first connecting part (63), a second connecting part (64), and a pulling ring (65). The two ends of the first connecting part (63) are respectively fixedly connected to the two crossbars (611). The two ends of the second connecting part (64) are respectively fixedly connected to the two extension rods (613). The pulling ring (65) is disposed on the first connecting part (63) and is used to connect with the first pulling unit.

6. The jacking and hoisting device for the crossbeam of an ultra-high voltage power tower according to claim 5, characterized in that, The second push assembly (62) further includes a second inclined push rod (623), which is disposed on the hinge shaft (621).

7. The jacking and hoisting device for the crossbeam of an ultra-high voltage power tower according to claim 6, characterized in that, The push unit (6) also includes a position nut (66), which is threadedly connected to the hinge shaft (621) and is disposed between the two hinge bushings (614). Rotating the position nut (66) allows the hinge shaft (621) to slide within the hinge bushing (614).

8. The jacking and hoisting device for the crossbeam of an ultra-high voltage power tower according to claim 7, characterized in that, The jacking unit (6) also includes a gear (67) and a motor (68). The gear (67) and the motor (68) are connected. The motor (68) is mounted on the second connecting part (64). The motor (68) can drive the gear (67) to rotate, thereby driving the position nut (66) to rotate.

9. The jacking and hoisting device for the crossbeam of an ultra-high voltage power tower according to claim 1, characterized in that, The first inclined push rod (622) is hinged to the hinge shaft (621); the second push assembly (62) further includes a transition ring (624), which is rotatably connected to the first inclined push rod (622) and is used to connect to the lower main material part (1042).

10. The jacking and hoisting device for the crossbeam of an ultra-high voltage power tower according to claim 1, characterized in that, It also includes a hanging unit (7), which includes a connector (73). The connector (73) includes a first hanging ring (731), a second hanging ring (732), and a tightening part (733). The first hanging ring (731) and the second hanging ring (732) are threadedly connected to both ends of the tightening part (733), and the rotation directions of the threads at both ends of the tightening part (733) are opposite.

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