Full-automatic rotary crossing frame

Abstract

The utility model belongs to the technical field of power transmission lines, and discloses a full-automatic rotation crossing frame which comprises a bottom support, a rotation bearing and a horizontally-arranged worm are arranged on the bottom support, turbine teeth matched with the worm are arranged on the outer ring of the rotation bearing, a hydraulic motor is arranged at one end of the worm, and the top of the outer ring of the rotation bearing is fixedly connected with a supporting frame. Hinged shafts are rotationally arranged on frame bodies on the two sides of the supporting frame respectively, connecting rods are fixedly arranged in the middles of the hinged shafts, a turnover hydraulic cylinder is arranged on the inner side of the supporting frame, the end of a cylinder body of the turnover hydraulic cylinder is hinged to the frame bodies of the supporting frame, the end of a hydraulic rod is hinged to the ends, away from the hinged shafts, of the connecting rods, and ox horn frames are further fixedly connected to the hinged shafts. The worm and the hydraulic motor are arranged to drive the pivotal bearing, so that the supporting frame can rotate by 360 degrees and stay at any position, and therefore adjustment can be conducted at any angle; and the ox horn frame is driven by the overturning hydraulic cylinder to be unfolded or folded on the supporting frame, so that the size of the whole structure can be reduced, and transportation and construction are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission line construction, in particular to a full-automatic rotary spanning frame. Background Art

[0002] In recent years, my country's ultra-high voltage transmission lines have gradually entered the normal construction stage, and the traditional manual construction mode of overhead transmission lines has gradually transitioned to mechanized construction. The whole process of mechanized construction requires changing the previous mode of line construction, which was mainly manpower-assisted and supplemented by machinery, and has realized the transformation of line construction to mechanized mode, which is conducive to improving the safety quality, efficiency and benefits of the power grid, and the process level, and is an inevitable requirement for the development of first-class power grid construction technology.

[0003] The construction of transmission line crossing points is a high-risk and difficult task in power grid construction. The use of a slewing crossing frame is not only scientific and practical, economical and simple, but also flexible and convenient. The slewing crossing frame unfolds the frame structure through a hydraulic power system and is installed on the crane boom to deliver the line equipment to the top of the object being crossed. The crossing frame provides reliable, simple and efficient safety guarantees and efficiency improvements for construction.

[0004] The Chinese utility model patent with the publication number CN 214755187 U discloses a bull horn type crossing protection device, including a bull horn structure, a slewing support, a slewing bearing, a base and an adjustment component. The bull horn structure opens upward, the center of the bottom of the bull horn structure is connected to the top surface of the slewing bearing, and the bottom surface of the slewing bearing is fixed to the slewing support, so that the bull horn structure can rotate centrally; the base is a square truss structure with four legs, two of which are longer and directly connected to the bottom of the slewing support, and the other two are shorter and connected to the bottom of the slewing support through an adjustment component. The length of the adjustment component is adjusted to ensure the level of the bull horn structure. The above scheme can reduce the impact of unfavorable crossing terrain environment, effectively solve the problem of line break protection for high-speed rail electrified lines and other crossed objects under special crossing terrain conditions, and has a simple and stable structure, few dangerous sources, and a high degree of automation, which can reduce construction safety risks.

[0005] However, the bull horn structure in the above scheme is an integral frame structure with a large structural size, which is not conducive to transportation; in addition, three sets of locking pin holes are provided on the slewing bearing for locking the bull horn structure after horizontal rotation, so that the bull horn structure can only be fixed at a specific rotation angle and cannot be adjusted according to the actual situation on site, resulting in limited use. Utility Model Content

[0006] In order to solve the above problems, the utility model provides a full-automatic rotating spanning frame.

[0007] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: a fully automatic rotating crossing frame, including a bottom bracket, a rotating bearing and a horizontally arranged worm gear are arranged on the bottom bracket, the outer ring of the rotating bearing is provided with turbine teeth cooperating with the worm gear, a hydraulic motor is arranged at one end of the worm gear, the top of the outer ring of the rotating bearing is fixedly connected to the support frame, and a hinge shaft arranged along the width direction is rotatably provided on each of the frame bodies on both sides of the support frame, a connecting rod is fixedly provided in the middle of the hinge shaft, and a flip hydraulic cylinder is provided in the frame body of the support frame located on the inner side of the hinge shaft, the cylinder end of the flip hydraulic cylinder is hingedly connected to the internal frame body of the support frame, and the end of the hydraulic rod is hingedly connected to the end of the connecting rod away from the hinge shaft, and a bullhorn frame is also fixedly connected to the hinge shaft.

[0008] By adopting the above technical solution, a worm and a hydraulic motor are set to drive the slewing bearing. The cooperation between the worm and the turbine gear can effectively limit the position, so that the support frame can rotate 360 ​​degrees and stay at any position, so that it can be adjusted at any angle; and then through the hinged horn frame and the flip hydraulic cylinder, the flip hydraulic cylinder is used to drive the horn frame to open or close to the support frame, so that the size of the overall structure can be reduced in the non-working state, thereby facilitating transportation and storage.

[0009] Furthermore, the bottom bracket as a whole is an L-shaped bracket composed of a horizontal beam and a vertical beam, a leveling bracket is rotatably provided at the end of the horizontal beam, a leveling hydraulic cylinder is provided at the lower end of the vertical beam, the cylinder end of the leveling hydraulic cylinder is hinged to the vertical beam, and the end of the hydraulic rod is hinged to the side of the leveling bracket away from the horizontal beam, and the slewing bearing and worm are arranged on the leveling bracket.

[0010] By adopting the above technical solution, a leveling bracket and a leveling hydraulic cylinder are provided, and the horizontality of the support frame can be adjusted by driving the leveling bracket to rotate through the leveling hydraulic cylinder.

[0011] Furthermore, an oblique support beam is provided between the horizontal beam and the vertical beam.

[0012] By adopting the above technical solution, an oblique support beam is arranged between the horizontal beam and the vertical beam to reinforce the bottom bracket.

[0013] Furthermore, a slewing frame is fixedly provided on the upper side of the outer ring of the slewing bearing, and a mounting frame is provided on the support frame, and the mounting frame is connected to the slewing frame by bolts.

[0014] By adopting the above technical solution, a slewing frame and a mounting frame are provided, which facilitates the installation and disassembly between the support frame and the slewing bearing.

[0015] Furthermore, a connecting frame is provided at the upper part of each of the two ends of the support frame, and a limiting column is provided on one side of the end of the support frame to protrude upward, and a hinge shaft is rotatably provided on the side of the connecting frame away from the end of the support frame.

[0016] By adopting the above technical solution, a connecting frame and a limiting column are provided to limit and support the open state of the horn rack.

[0017] Furthermore, the support frame is rotatably provided with a rotating roller arranged along its length direction.

[0018] By adopting the above technical solution, a rotating roller is rotatably arranged on the support frame, which facilitates the cable to slide on the support frame and reduces the damage caused by the support frame to the cable.

[0019] Furthermore, a central hydraulic joint is provided on the slewing frame in the middle of the slewing bearing, and the hydraulic motor, the tilting hydraulic cylinder and the leveling hydraulic cylinder are all connected to the central hydraulic joint through hydraulic pipelines.

[0020] By adopting the above technical solution and setting a central hydraulic joint, the hydraulic pipelines of the hydraulic motor, the tilting hydraulic cylinder and the leveling hydraulic cylinder are brought together, which facilitates the unified layout of the overall structural pipelines.

[0021] In summary, the utility model has the following beneficial effects: in the present application, a worm and a hydraulic motor are provided to drive the slewing bearing, and the cooperation between the worm and the turbine gear can effectively limit the position, so that the support frame can rotate 360 ​​degrees and stay at any position, so that it can be adjusted at any angle; and then through the hinged arrangement of the horn frame and the flip hydraulic cylinder, the flip hydraulic cylinder is used to drive the horn frame to open or close to the support frame, so that the size of the overall structure can be reduced in the non-working state, thereby facilitating transportation and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall structure of the support frame part of the embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the support frame structure of an embodiment of the utility model;

[0025] Figure 4 It is a schematic structural diagram of the bottom bracket, the leveling bracket and the slewing bearing part of the embodiment of the utility model;

[0026] Figure 5 It is a schematic diagram of the structure of the rotary frame of the utility model embodiment;

[0027] Figure 6It is a structural schematic diagram of the central hydraulic joint of an embodiment of the utility model.

[0028] In the figure: 10, bottom bracket; 11, horizontal beam; 12, vertical beam; 13, leveling hydraulic cylinder; 14, oblique support beam; 20, slewing bearing; 21, worm; 22, hydraulic motor; 23, slewing frame; 30, support frame; 31, hinge shaft; 32, connecting rod; 33, tilting hydraulic cylinder; 34, horn frame; 35, mounting frame; 36, connecting frame; 37, limiting column; 38, rotating roller; 40, leveling bracket; 50, central hydraulic joint. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0030] like Figure 1-4 As shown, the embodiment of the present application discloses a fully automatic slewing spanning frame, including a bottom bracket 10, a leveling bracket 40, a slewing bearing 20, a support frame 30 and a bull horn bracket 34. The bottom bracket 10 is used to support and install the entire frame, the leveling bracket 40 is used to adjust the horizontality and angle of the support frame 30, the slewing bearing 20 is used to drive the support frame 30 to rotate, and the bull horn bracket 34 is arranged at both ends of the support frame 30 to limit the cable.

[0031] Specifically, the bottom bracket 10 is an L-shaped bracket composed of a horizontal beam 11 and a vertical beam 12. Two horizontal beams 11 and two vertical beams 12 are arranged in parallel and spaced apart. Connecting rods are provided between the horizontal beams 11 and the vertical beams 12. An oblique support beam 14 is also provided between the horizontal beams 11 and the vertical beams 12 to reinforce the bracket. A leveling bracket 40 is rotatably provided at the end of the horizontal beam 11, and a leveling hydraulic cylinder 13 is provided at the lower end of the vertical beam 12. The cylinder end of the leveling hydraulic cylinder 13 is hinged to the vertical beam 12, and the end of the hydraulic rod is hinged to the side of the leveling bracket 40 away from the horizontal beam 11. In this way, the hydraulic rod of the leveling hydraulic cylinder 13 can be extended and retracted to drive the leveling bracket 40 to rotate around the axis hinged to the horizontal beam 11, thereby adjusting the horizontality of the leveling bracket 40 to achieve the leveling effect.

[0032] The leveling bracket 40 is provided with a slewing bearing 20. Specifically, the inner ring of the slewing bearing 20 is fixedly connected to the leveling bracket 40, and a slewing frame 23 is fixedly provided on the upper side of the outer ring of the slewing bearing 20. The side wall of the outer ring of the slewing bearing 20 is provided with turbine gears, and a horizontally arranged worm 21 is rotatably provided beside the slewing bearing 20 on the leveling bracket 40, and the worm 21 cooperates with the turbine gears. A hydraulic motor 22 is provided at one end of the worm 21, and the outer ring of the slewing bearing 20 is driven to rotate by the hydraulic motor 22, thereby driving the slewing frame 23 to rotate. The slewing bearing 20 has damping properties, and with the cooperation of the worm, it can realize 360-degree forward and reverse rotation, and stop at any position, and can be adjusted at any angle.

[0033] The support frame 30 is in the shape of a rectangular parallelepiped frame as a whole. A mounting frame 35 is provided at the bottom of the support frame 30. The mounting frame 35 is connected to the rotating frame 23 by bolts, which is convenient for installation and disassembly. A connecting frame 36 is provided at the upper part of each of the two ends of the support frame 30. The connecting frame 36 is located at one side of the end of the support frame 30 and is provided with a limit column 37 protruding upward. The connecting frame 36 is rotatably provided with a hinge shaft 31 on the side away from the end of the support frame 30. The hinge shaft 31 is arranged along the width direction of the support frame 30. A connecting rod 32 is fixedly provided in the middle of the hinge shaft 31. A tilting hydraulic cylinder 33 is provided in the frame body of the support frame 30 located inside the hinge shaft 31. The cylinder end of the tilting hydraulic cylinder 33 is hingedly connected to the internal frame body of the support frame 30, and the end of the hydraulic rod is hingedly connected to the end of the connecting rod 32 away from the hinge shaft 31. The hinge shaft 31 is driven to rotate by the hydraulic rod of the tilting hydraulic cylinder 33 to extend and retract the connecting rod 32. A horn frame 34 is also fixedly connected to the hinge shaft 31. The rotation of the hinge shaft 31 can drive the horn frame 34 to rotate and open and close, so as to facilitate transportation and on-site construction. After the horn frame 34 is opened, the outer side of its bottom contacts the limit column 37 on the outer side of the connecting frame 36 to support and limit the horn frame 34. Two groups of rotating rollers 38 arranged along the length direction of the support frame 30 are rotatably provided. The rotating rollers 38 can assist the movement of the cable, prevent the sliding friction between the cable and the support frame 30 from damaging the cable, and play a role in protecting the cable and reducing resistance.

[0034] Further, a central hydraulic joint 50 is provided on the slewing frame 23 in the middle of the slewing bearing 20, and the hydraulic motor 22, the tilting hydraulic cylinder 33, and the leveling hydraulic cylinder 13 are all connected to the central hydraulic joint 50 through hydraulic pipelines. The middle of the central hydraulic joint 50 is connected to the 24V hydraulic unit on its upper part through a power line provided by a battery. The hydraulic unit is equipped with multiple sets of solenoid valves, which provide hydraulic power to each hydraulic component through PLC control. The central hydraulic joint 50 is provided with two rotatable joints, which are respectively connected to the two tilting hydraulic cylinders 33, solving the problem of entanglement of the hydraulic pipeline when the support frame 30 rotates. An electric slip ring is provided on the upper part of the central hydraulic joint 50 to provide power to other electrical equipment on the support frame 30.

[0035] The use principle of a fully automatic revolving crossing frame in this embodiment is: the bottom bracket 10 is installed and fixed on the steam crane boom, the remote control flip hydraulic cylinder 33 drives the two horn brackets 34 to open, and the bottom bracket 10 is driven by the steam crane boom to rise and support the cable to a specified height, and then the hydraulic motor 22 and the leveling hydraulic cylinder 13 are controlled according to the actual situation on site to adjust the angle and horizontality of the support frame 30 to achieve the best cable laying effect.

[0036] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A fully automatic revolving spanning frame, comprising a bottom bracket (10), characterized in that: The bottom bracket (10) is provided with a slewing bearing (20) and a horizontally arranged worm (21); the outer ring of the slewing bearing (20) is provided with a turbine tooth matched with the worm (21); a hydraulic motor (22) is provided at one end of the worm (21); the top of the outer ring of the slewing bearing (20) is fixedly connected to a support frame (30); a hinge shaft (31) arranged along its width direction is rotatably provided on each of the two side frames of the support frame (30); a connecting rod (32) is fixedly provided in the middle of the hinge shaft (31); a tilting hydraulic cylinder (33) is provided in the frame body of the support frame (30) located inside the hinge shaft (31); the cylinder end of the tilting hydraulic cylinder (33) is hingedly connected to the internal frame body of the support frame (30); the end of the hydraulic rod is hingedly connected to one end of the connecting rod (32) away from the hinge shaft (31); and a bullhorn frame (34) is also fixedly connected to the hinge shaft (31).

2. The fully automatic rotating spanning frame according to claim 1 is characterized in that: The bottom bracket (10) is an L-shaped bracket consisting of a horizontal beam (11) and a vertical beam (12). A leveling bracket (40) is rotatably arranged at the end of the horizontal beam (11). A leveling hydraulic cylinder (13) is arranged at the lower end of the vertical beam (12). The cylinder end of the leveling hydraulic cylinder (13) is hinged to the vertical beam (12), and the end of the hydraulic rod is hinged to the side of the leveling bracket (40) away from the horizontal beam (11). The slewing bearing (20) and the worm (21) are arranged on the leveling bracket (40).

3. The fully automatic rotating spanning frame according to claim 2 is characterized in that: An oblique support beam (14) is also provided between the horizontal beam (11) and the vertical beam (12).

4. The fully automatic rotating spanning frame according to claim 2 is characterized in that: A slewing frame (23) is fixedly arranged on the upper side of the outer ring of the slewing bearing (20), and the support frame (30) is provided with a mounting frame (35), and the mounting frame (35) is connected to the slewing frame (23) by bolts.

5. The fully automatic rotating spanning frame according to claim 1 is characterized in that: A connecting frame (36) is provided at the upper part of each of the two ends of the support frame (30); the connecting frame (36) is located on one side of the end of the support frame (30) and is provided with a limit column (37) protruding upward; and the connecting frame (36) is rotatably provided with a hinge shaft (31) on one side away from the end of the support frame (30).

6. The fully automatic rotating spanning frame according to claim 1 is characterized in that: The support frame (30) is rotatably provided with a rotating roller (38) arranged along its length direction.

7. The fully automatic rotating spanning frame according to claim 4 is characterized in that: A central hydraulic joint (50) is provided on the slewing frame (23) in the middle of the slewing bearing (20), and the hydraulic motor (22), the tilting hydraulic cylinder (33), and the leveling hydraulic cylinder (13) are all connected to the central hydraulic joint (50) through hydraulic pipelines.

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