Self-propelled lifting frame working under high-voltage line

Abstract

The invention discloses a self-propelled lifting frame working under a high-voltage line, and relates to the technical field of hoisting equipment, the self-propelled lifting frame comprises an operation platform, a portal frame is arranged at the top of the operation platform, a wiring mechanism is arranged at the top of the portal frame, an angle adjusting structure is arranged at the top of the operation platform, and the angle adjusting structure comprises a first storage rack; the first storage rack is fixedly arranged at the top of the operation platform, a first motor is arranged at one end of the first storage rack, the end, penetrating through the first storage rack, of an output shaft of the first motor is fixedly connected with a one-way lead screw, a first sliding block is arranged outside the one-way lead screw in a sliding mode, and a supporting plate is fixedly connected outside the first sliding block. According to the self-propelled lifting frame working under the high-voltage line, the working range of the lifting hook can be expanded according to the diameter of a reinforcement cage needing to be lifted, and the influence of the lifting frame body on the lifting work of the reinforcement cage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment, and in particular to a self-propelled lifting frame operating under a high-voltage line. Background Art

[0002] When working at a construction site, a lifting frame is usually used to lift goods such as steel cages. However, due to the influence of high-voltage lines, it is usually necessary to pay attention to the lifting height of the lifting frame during construction to avoid damage to the overhead high-voltage lines.

[0003] The Chinese patent with publication number "CN107902569A" discloses "a crane and a method for loading and unloading counterweights by the crane. The crane comprises a turntable, a hoisting device and a counterweight loading and unloading system. The counterweight loading and unloading system comprises a counterweight auxiliary boom, a sling, an equivalent counterweight and a wire rope. The counterweight auxiliary boom is arranged on the turntable, and one end of the wire rope is wound around the drum of the hoisting device." Although the effect of "convenient transportation, reduced transportation costs, improved space utilization, improved installation efficiency, and thus reduced the use cost of the crane" can be achieved, due to the influence of high-voltage lines, large cranes cannot be used for lifting work during construction. The crane cannot perform lifting operations at a limited height. At the same time, since the steel cage will inevitably shake during the lifting process, the shaking of the lifted steel cage will cause an impact on the structure of the lifting frame itself. Therefore, the present invention proposes a self-propelled lifting frame operating under high-voltage lines. Summary of the invention

[0004] The main purpose of the present invention is to provide a self-propelled lifting frame for working under high-voltage lines, which can effectively solve the technical problems raised in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A self-propelled lifting frame for working under high-voltage lines, comprising an operating platform, a gantry is arranged on the top of the operating platform, a wiring mechanism is arranged on the top of the gantry, and an angle adjustment structure is arranged on the top of the operating platform;

[0007] The angle adjustment structure includes a storage rack 1, which is fixedly arranged on the top of the operating platform, a motor 1 is arranged at one end of the storage rack, and the output shaft of the motor 1 passes through one end of the storage rack and is fixedly connected to a one-way screw rod, a slider 1 is slidably arranged on the outside of the one-way screw rod, and a support plate is fixedly connected to the outside of the slider 1, a fixed plate 1 is fixedly installed on the front part of the wiring mechanism, a movable plate is rotatably connected to the inner side of the fixed plate 1, two limiting rings are fixedly arranged on the top of the movable plate, a slide plate is fixedly arranged on the front and rear parts of the movable plate, a pulley is rotatably arranged on the inner side of one end of the movable plate, and one end of the support plate is slidably connected to the slide plate.

[0008] As a preferred technical solution of the present invention, a crawler moving mechanism is provided at the bottom of the operating platform, and an electric power mechanism is fixedly provided at the top of the operating platform.

[0009] As a preferred technical solution of the present invention, a winch is arranged on the top of the operating platform, a steel wire rope is arranged on the outside of the winch, a hook is arranged at one end of the steel wire rope, and the steel wire rope is adaptively matched with the routing mechanism, the limit ring and the pulley.

[0010] As a preferred technical solution of the present invention, two steel inclined tie rods are fixedly provided on the top of the operating platform located on one side of the gantry, and hydraulic support foot mechanisms are provided on all four sides of the operating platform.

[0011] As a preferred technical solution of the present invention, an anti-collision buffer structure is arranged on the top of the operating platform, and the anti-collision buffer structure includes two electric telescopic rods, and the electric telescopic rods are fixedly arranged on the top of the operating platform. A baffle is movably arranged on the top of the operating platform, and the baffle is fixedly connected to one end of the electric telescopic rod, two racks 2 are movably arranged on one side of the baffle, and the rack 2 is connected to the baffle through three movable rods, an anti-collision roller is rotatably arranged on the inner side of the rack 2, and three springs are arranged between one side of the rack 2 and one side of the baffle.

[0012] As a preferred technical solution of the present invention, the anti-collision buffer structure also includes a limited clamping assembly, which includes two convex plates, which are fixedly connected to the baffle, and a bidirectional screw rod is rotatably connected through the two convex plates, and one end of the bidirectional screw rod is fixedly connected to the output shaft of motor 2, the outside of the bidirectional screw rod is symmetrically slidably connected to two sliders 2, and the inside of slider 2 is rotatably connected to two limiting rollers.

[0013] As a preferred technical solution of the present invention, the spring is located at the periphery of the corresponding movable rod, and the second sliding block is in a "Z" shape.

[0014] As a preferred technical solution of the present invention, two hydraulic support rods are arranged on the top of the operating platform on one side of the gantry, and the fixing plate is in a "concave" shape.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting the angle adjustment structure, the lifting frame can expand the working range of the hook according to the diameter of the steel cage to be hoisted, so as to avoid the lifting frame body affecting the hoisting work of the steel cage;

[0017] 2. The anti-collision buffer structure is provided in conjunction with the angle adjustment structure, which is helpful to buffer the impact force generated by the hoisted steel cage, so as to prevent the steel cage from hitting the lifting frame body due to inertia after being hoisted, thereby avoiding damage to the lifting frame body and affecting its service life;

[0018] 3. By setting the limit clamping assembly and the anti-collision buffer structure, it is beneficial to limit the bottom of the lifted steel cage to avoid shaking when it is placed in the foundation pit and affecting the work efficiency;

[0019] 4. The steel cage can be hoisted by arranging the winch, the routing mechanism and the angle adjustment structure, while reducing the friction of the wire rope caused by the wire release and wire reeling, which may damage its service life;

[0020] 5. By setting up a gantry, a wiring mechanism and an angle adjustment structure, it is helpful to prevent the lifting frame from causing damage to the overhead high-voltage lines during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a self-propelled lifting frame for working under a high-voltage line according to the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of a storage rack 1 of a self-propelled lifting frame for working under a high-voltage line according to the present invention;

[0023] Figure 3 It is a schematic diagram of the split three-dimensional structure of a one-way screw rod and a slider 1 of a self-propelled lifting frame operating under a high-voltage line according to the present invention;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of a movable plate of a self-propelled lifting frame for working under a high-voltage line according to the present invention;

[0025] Figure 5 It is a partial three-dimensional structural schematic diagram of a self-propelled lifting frame for working under a high-voltage line according to the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of an anti-collision roller of a self-propelled lifting frame operating under a high-voltage line according to the present invention;

[0027] Figure 7 It is a schematic diagram of the split three-dimensional structure of a bidirectional screw rod and a sliding block 2 of a self-propelled lifting frame operating under a high-voltage line according to the present invention;

[0028] Figure 8 It is a schematic diagram of the overall three-dimensional structure of a self-propelled lifting frame for working under a high-voltage line according to the present invention from another perspective;

[0029] Fig. 9It is a schematic diagram of the overall side view structure of a self-propelled lifting frame for working under a high-voltage line according to the present invention.

[0030] In the figure: 1. operating platform; 2. crawler moving mechanism; 3. winch; 4. power mechanism; 5. gantry; 6. routing mechanism; 7. steel inclined rod; 8. hydraulic support leg mechanism; 9. angle adjustment structure; 10. anti-collision buffer structure; 11. storage rack one; 12. motor one; 13. one-way screw rod; 14. slider one; 15. support plate; 16. fixed plate one; 17. movable plate; 18. limit ring; 19. slide plate; 20. pulley; 21. electric telescopic rod; 22. baffle; 23. movable rod; 24. storage rack two; 25. anti-collision roller; 26. spring; 27. convex plate; 28. two-way screw rod; 29. ​​motor two; 30. slider two; 31. limit roller. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figure 1-Figure 9 As shown, a self-propelled lifting frame for working under high-voltage lines includes an operating platform 1, a gantry 5 is arranged on the top of the operating platform 1, a wiring mechanism 6 is arranged on the top of the gantry 5, and an angle adjustment structure 9 is arranged on the top of the operating platform 1;

[0033] The angle adjustment structure 9 includes a storage rack 11, which is fixedly arranged on the top of the operating platform 1, a motor 12 is arranged at one end of the storage rack 11, and the output shaft of the motor 12 passes through one end of the storage rack 11 and is fixedly connected with a one-way screw rod 13, a slider 14 is slidably arranged outside the one-way screw rod 13, and a support plate 15 is fixedly connected to the outside of the slider 14, a fixed plate 16 is fixedly installed on the front of the wiring mechanism 6, and a movable plate 17 is rotatably connected to the inner side of the fixed plate 16, and two limit rings 18 are fixedly arranged on the top of the movable plate 17, and a slide plate 19 is fixedly arranged at the front and rear parts of the movable plate 17, a pulley 20 is rotatably arranged inside one end of the movable plate 17, and one end of the support plate 15 is slidably connected to the slide plate 19.

[0034] The angle adjustment structure 9 enables the lifting frame to expand the use range of the hook according to the diameter of the steel cage, thereby preventing the steel cage from being affected by the lifting frame body or causing damage to the lifting frame body during lifting.

[0035] In this embodiment, a crawler moving mechanism 2 is provided at the bottom of the operating platform 1 , and an electric power mechanism 4 is fixedly provided at the top of the operating platform 1 .

[0036] The crawler moving mechanism 2 is an existing crawler drive device, and its working principle is the same as the existing crawler moving mode of tanks and excavators.

[0037] In this embodiment, a winch 3 is provided on the top of the operating platform 1, a steel wire rope is provided on the outside of the winch 3, a hook is provided at one end of the steel wire rope, and the steel wire rope is adaptively matched with the routing mechanism 6, the limiting ring 18 and the pulley 20.

[0038] The winch 3 cooperates with the routing mechanism 6 to guide the direction of the wire rope, and the pulley 20 guides and protects the wire rope, reducing the damage caused by the friction of its movement.

[0039] In this embodiment, two steel inclined tie rods 7 are fixedly provided on the top of the operating platform 1 on one side of the gantry 5 , and hydraulic support foot mechanisms 8 are provided around the operating platform 1 .

[0040] The steel inclined rod 7 supports the gantry 5, and the hydraulic support leg mechanism 8 supports the lifting frame as a whole.

[0041] In this embodiment, an anti-collision buffer structure 10 is provided on the top of the operating platform 1, and the anti-collision buffer structure 10 includes two electric telescopic rods 21, and the electric telescopic rods 21 are fixedly arranged on the top of the operating platform 1. A baffle 22 is movably arranged on the top of the operating platform 1, and the baffle 22 is fixedly connected to one end of the electric telescopic rod 21. Two storage racks 24 are movably arranged on one side of the baffle 22, and the storage racks 24 are connected to the baffle 22 through three movable rods 23. An anti-collision roller 25 is rotatably arranged on the inner side of the storage racks 24, and three springs 26 are arranged between one side of the storage racks 24 and one side of the baffle 22.

[0042] The anti-collision buffer structure 10 can buffer the impact force generated when the steel cage is hoisted, thereby preventing it from hitting the lifting frame body and causing damage to it, thus shortening its service life.

[0043] In this embodiment, the anti-collision buffer structure 10 also includes a limited clamping assembly, which includes two protruding plates 27, which are fixedly connected to the baffle 22. A bidirectional screw rod 28 is rotatably connected between the two protruding plates 27, and one end of the bidirectional screw rod 28 is fixedly connected to the output shaft of the motor 29. The outside of the bidirectional screw rod 28 is symmetrically slidably connected to two sliders 2 30, and the inner side of the slider 2 30 is rotatably connected to two limiting rollers 31.

[0044] The limit clamping assembly can limit the bottom of the suspended steel cage and assist the steel cage to move up and down to ensure that the cage does not shake during the process of being placed in the foundation pit and affect work efficiency.

[0045] In this embodiment, the spring 26 is located at the periphery of the corresponding movable rod 23, and the sliding block 2 30 is in a "Z" shape.

[0046] The spring 26 provides elastic support to the storage rack 24 , and can cooperate with the movable rod 23 to buffer the impact force on the anti-collision roller 25 .

[0047] In this embodiment, two hydraulic support rods are arranged on the top of the operating platform 1 on one side of the gantry 5, and the fixing plate 16 is in a "concave" shape.

[0048] The hydraulic support rod cooperates with the steel inclined rod 7 to further support the gantry 5.

[0049] It should be noted that the present invention is a self-propelled lifting frame for working under high-voltage lines. When the winch 3 is used to wind up and assist in releasing the wire rope, manual assistance is required to perform the swinging, or an existing swinging mechanism is installed at the winch 3 to perform the auxiliary swinging work. Before use, the lifting frame is installed at a required location, and the hydraulic support leg mechanism 8 is started so that its bottom is in contact with the ground to play the role of auxiliary support and fixed position of the lifting frame as a whole. In the initial state, the movable plate 17 and the fixed plate 16 are in a vertical state, and the hook carries the wire rope through the routing mechanism 6, the limit ring 18 and the pulley 20 in sequence;

[0050] Start the winch 3 to release the wire rope, so that the hook moves toward the ground. According to the diameter of the steel cage, start the motor 12 to act on the one-way screw 13 to rotate, so that the slider 14 moves with the support plate 15, and the support plate 15 acts on the movable plate 17 to rotate until it stops after rotating to a certain angle. At this time, the working range of the hook is expanded to avoid the collision between the steel cage and the lifting frame body structure when it is lifted in the initial state;

[0051] The electric telescopic rod 21 is started to act on the baffle 22 to move in the opposite direction of the electric telescopic rod 21 to a predetermined position. When the hook lifts the steel cage lying flat on the ground under the action of the winch 3, the bottom of the steel cage will directly hit the anti-collision roller 25 due to inertia. The anti-collision roller 25 buffers the impact force generated by the steel cage under the action of the spring 26. Then the motor 29 is started to make the slider 2 30 move toward the two sides of the bottom of the steel cage under the action of the bidirectional screw rod 28 until the limiting rollers 31 fit the two sides of the bottom of the steel cage, limiting the bottom of the steel cage to ensure that the steel cage can move up and down in the limiting area to prevent it from shaking and affecting the installation. At this time, the winch 3 acts on the wire rope to move the lifted steel cage downward until the bottom of the steel cage is installed in the predetermined foundation pit, and the lifting work of the steel cage can be completed.

Claims

1. A self-propelled lifting frame for working under a high-voltage line, comprising an operating platform (1), a gantry (5) being arranged on the top of the operating platform (1), and a wiring mechanism (6) being arranged on the top of the gantry (5). Features: An angle adjustment structure (9) is provided on the top of the operating platform (1); The angle adjustment structure (9) comprises a storage rack (11), wherein the storage rack (11) is fixedly arranged on the top of the operating platform (1), a motor (12) is arranged at one end of the storage rack (11), and an output shaft of the motor (12) passes through one end of the storage rack (11) and is fixedly connected to a one-way screw rod (13), a slider (14) is slidably arranged outside the one-way screw rod (13), and the outside of the slider (14) is fixedly connected to a support plate (11). 5), a fixed plate (16) is fixedly installed at the front of the routing mechanism (6), a movable plate (17) is rotatably connected to the inner side of the fixed plate (16), two limit rings (18) are fixedly arranged on the top of the movable plate (17), a slide plate (19) is fixedly arranged at the front and rear parts of the movable plate (17), a pulley (20) is rotatably arranged on the inner side of one end of the movable plate (17), and one end of the support plate (15) is slidably connected to the slide plate (19).

2. A self-propelled lifting frame for working under high-voltage lines according to claim 1, Features: A crawler moving mechanism (2) is arranged at the bottom of the operating platform (1), and an electric power mechanism (4) is fixedly arranged at the top of the operating platform (1).

3. A self-propelled lifting frame for working under high-voltage lines according to claim 1, Features: A winch (3) is arranged on the top of the operating platform (1), a steel wire rope is arranged outside the winch (3), a hook is arranged at one end of the steel wire rope, and the steel wire rope is adaptively matched with a routing mechanism (6), a limiting ring (18) and a pulley (20).

4. A self-propelled lifting frame for working under high-voltage lines according to claim 1, Features: Two steel inclined rods (7) are fixedly arranged on the top of the operating platform (1) and located on one side of the gantry (5), and hydraulic support mechanisms (8) are arranged on all four sides of the operating platform (1).

5. A self-propelled lifting frame for working under high-voltage lines according to claim 1, Features: The top of the operating platform (1) is provided with an anti-collision buffer structure (10), the anti-collision buffer structure (10) comprising two electric telescopic rods (21), the electric telescopic rods (21) being fixedly arranged on the top of the operating platform (1), a baffle (22) being movably arranged on the top of the operating platform (1), and the baffle (22) being fixedly connected to one end of the electric telescopic rod (21), two second storage racks (24) being movably arranged on one side of the baffle (22), and the second storage rack (24) being connected to the baffle (22) via three movable rods (23), an anti-collision roller (25) being rotatably arranged on the inner side of the second storage rack (24), and three springs (26) being arranged between one side of the second storage rack (24) and one side of the baffle (22).

6. A self-propelled lifting frame for working under high-voltage lines according to claim 5, Features: The anti-collision buffer structure (10) also includes a limited position clamping assembly, which includes two convex plates (27), the convex plates (27) are fixedly connected to the baffle plate (22), a bidirectional screw rod (28) is rotatably connected between the two convex plates (27), and one end of the bidirectional screw rod (28) is fixedly connected to the output shaft of the second motor (29), the outside of the bidirectional screw rod (28) is symmetrically slidably connected to two sliders (30), and the inside of the slider (30) is rotatably connected to two limited position rollers (31).

7. A self-propelled lifting frame for working under high-voltage lines according to claim 6, Features: The spring (26) is located at the periphery of the corresponding movable rod (23), and the second sliding block (30) is in a "Z" shape.

8. The self-propelled lifting frame for working under high-voltage lines according to claim 1, Features: The top of the operating platform (1) is located on one side of the gantry (5) and is provided with two hydraulic support rods, and the fixing plate (16) is in a "concave" shape.

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