Self-propelled lifting frame for high-voltage line down operation
Technical Field
The invention relates to the technical field of hoisting equipment, in particular to a self-propelled lifting frame for high-voltage line operation.
Background
When the construction site is operated, the lifting frame is usually used for lifting cargoes such as reinforcement cages and the like, but the influence of high-voltage lines usually needs to be noted on the lifting height of the lifting frame in the construction process, so that the damage to overhead high-voltage lines is avoided.
Chinese patent publication No. CN107902569a discloses a crane and a method for loading and unloading a counterweight by the crane. The crane comprises a turntable, a hoisting device and a counterweight loading and unloading system, wherein the counterweight loading and unloading system comprises a counterweight auxiliary suspension arm, a lifting appliance, an equivalent counterweight and a steel wire rope, the counterweight auxiliary suspension arm is arranged on the turntable, one end of the steel wire rope is wound on a winding drum of the hoisting device, the crane can achieve the effects of 'convenient transportation, reduced transportation cost, improved space utilization rate, improved installation efficiency and further reduced use cost' of the crane, however, due to the influence of a high-voltage line, a large crane cannot be used for hoisting during construction, the crane cannot hoist under a limited height, and meanwhile, due to the fact that shaking can not occur in the hoisting process of the reinforcement cage, the shaking of the hoisted reinforcement cage can cause impact influence on the structure of the hoisting frame, and therefore the self-propelled hoisting frame for the operation under the high-voltage line is provided.
Disclosure of Invention
The invention mainly aims to provide a self-propelled lifting frame for high-voltage line operation, which can effectively solve the technical problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The self-propelled lifting frame for high-voltage line down operation comprises an operation platform, wherein a portal frame is arranged at the top of the operation platform, a wiring mechanism is arranged at the top of the portal frame, and an angle adjusting structure is arranged at the top of the operation platform;
the angle adjusting structure comprises a first storage rack, the first storage rack is fixedly arranged at the top of an operating platform, one end of the first storage rack is provided with a first motor, an output shaft of the first motor penetrates through one end fixedly connected with a unidirectional screw rod of the first storage rack, a first sliding block is arranged outside the unidirectional screw rod in a sliding mode, a supporting plate is fixedly connected with the first sliding block, a first fixing plate is fixedly arranged at the front part of the wiring mechanism, a movable plate is connected with the inner side of the first fixing plate in a rotating mode, two limiting rings are fixedly arranged at the top of the movable plate, a chute plate is fixedly arranged at the front portion and the rear portion of the movable plate, a pulley is rotatably arranged at the inner side of one end of the movable plate, and one end of the supporting plate is in sliding connection with the chute plate.
As a preferable technical scheme of the invention, a crawler moving mechanism is arranged at the bottom of the operation platform, and an electric mechanism is fixedly arranged at the top of the operation platform.
As a preferable technical scheme of the invention, a winch is arranged at the top of the operation platform, a steel wire rope is arranged outside the winch, a lifting hook is arranged at one end of the steel wire rope, and the steel wire rope is adaptively matched with the wiring mechanism, the limiting ring and the pulley.
As a preferable technical scheme of the invention, two steel diagonal draw bars are fixedly arranged on one side of the top of the operating platform, which is positioned on the portal frame, and hydraulic support leg mechanisms are arranged on the periphery of the operating platform.
As a preferable technical scheme of the invention, the top of the operation platform is provided with an anti-collision buffer structure, the anti-collision buffer structure comprises two electric telescopic rods, the electric telescopic rods are fixedly arranged at the top of the operation platform, the top of the operation platform is movably provided with a baffle plate which is fixedly connected with one end of the electric telescopic rods, one side of the baffle plate is movably provided with two storage racks II, the storage racks II are connected with the baffle plate through three movable rods, the inner side of the storage racks II is rotatably provided with anti-collision rollers, and three springs are arranged between one side of the storage racks II and one side of the baffle plate.
As a preferable technical scheme of the invention, the anti-collision buffer structure further comprises a limiting clamping assembly, the limiting clamping assembly comprises two convex plates, the convex plates are fixedly connected with the baffle, a bidirectional screw rod is connected between the two convex plates in a penetrating and rotating mode, one end of the bidirectional screw rod is fixedly connected with an output shaft of a second motor, two sliding blocks are symmetrically and slidingly connected to the outer portion of the bidirectional screw rod, and two limiting rollers are connected to the inner side of the second sliding block in a rotating mode.
As a preferable technical scheme of the invention, the spring is positioned at the periphery of the corresponding movable rod, and the second sliding block is Z-shaped.
As a preferable technical scheme of the invention, two hydraulic support rods are arranged on one side of the top of the operating platform, which is positioned on the portal frame, and the first fixing plate is concave.
Compared with the prior art, the invention has the following beneficial effects:
1. by arranging the angle adjusting structure, the lifting frame can be used for expanding the working range of the lifting hook according to the diameter of the steel reinforcement cage to be lifted according to the requirement, and the influence of the lifting frame body on the lifting operation of the steel reinforcement cage is avoided;
2. By arranging the anti-collision buffer structure and matching with the angle adjusting structure, the impact force generated by the lifted reinforcement cage is buffered, the phenomenon that the reinforcement cage is lifted until being collided with the lifting frame body due to inertia is avoided, and the damage to the lifting frame body is avoided, so that the service life of the lifting frame body is influenced;
3. the limiting clamping assembly is matched with the anti-collision buffer structure, so that the bottom of the hoisted reinforcement cage is limited, and the influence on the working efficiency caused by shaking when the hoisted reinforcement cage is placed in a foundation pit is avoided;
4. the steel reinforcement cage can be hoisted through the mutual coordination of the winch, the wiring mechanism and the angle adjusting structure, and meanwhile, the service life damage of the steel wire rope caused by friction generated by paying-off and winding operation is reduced;
5. Through setting up portal frame, wiring mechanism cooperation angle adjustment structure, be favorable to making the hoisting frame in use can avoid causing the damage to overhead high-voltage line.
Drawings
FIG. 1 is a schematic view of the overall perspective structure of a self-propelled lifting frame for operation under high voltage line in accordance with the present invention;
FIG. 2 is a schematic perspective view of a first rack of a self-propelled lifting frame for high-voltage line operation according to the present invention;
FIG. 3 is a schematic diagram of a split three-dimensional structure of a unidirectional screw and a first slider of a self-propelled lifting frame for operation under high voltage line;
FIG. 4 is a schematic perspective view of a mobile plate of a self-propelled lifting frame for high-voltage line operation according to the present invention;
FIG. 5 is a schematic view of a part of a self-propelled lifting frame for high-voltage down-line operation according to the present invention;
FIG. 6 is a schematic perspective view of an anti-collision roller of a self-propelled lifting frame for high-voltage line operation according to the present invention;
Fig. 7 is a schematic diagram of a split three-dimensional structure of a bidirectional screw rod and a second slider of a self-propelled lifting frame for high-voltage line operation;
FIG. 8 is a schematic overall perspective view of a self-propelled lifting frame for high-voltage down-line operation according to another aspect of the present invention;
fig. 9 is a schematic diagram illustrating the overall side view of a self-propelled lifting frame for high-voltage line operation according to the present invention.
In the figure, 1, an operation platform; 2, a crawler moving mechanism, 3, a winch, 4, an electric mechanism, 5, a portal frame, 6, a wiring mechanism, 7, a steel diagonal draw bar, 8, a hydraulic support leg mechanism, 9, an angle adjusting structure, 10, an anti-collision buffer structure, 11, a first storage rack, 12, a first motor, 13, a unidirectional screw rod, 14, a first sliding block, 15, a supporting plate, 16, a first fixed plate, 17, a movable plate, 18, a limiting ring, 19, a sliding groove plate, 20, a pulley, 21, an electric telescopic rod, 22, a baffle plate, 23, a movable rod, 24, a second storage rack, 25, an anti-collision roller, 26, a spring, 27, a convex plate, 28, a bidirectional screw rod, 29, a second motor, 30, a second sliding block, 31 and a limiting roller.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1-9, a self-propelled lifting frame for high-voltage line operation comprises an operation platform 1, wherein a portal frame 5 is arranged at the top of the operation platform 1, a wiring mechanism 6 is arranged at the top of the portal frame 5, and an angle adjusting structure 9 is arranged at the top of the operation platform 1;
The angle adjusting structure 9 comprises a first storage rack 11, the first storage rack 11 is fixedly arranged at the top of the operating platform 1, one end of the first storage rack 11 is provided with a first motor 12, an output shaft of the first motor 12 penetrates through one end of the first storage rack 11 and is fixedly connected with a unidirectional screw rod 13, a first sliding block 14 is slidably arranged outside the unidirectional screw rod 13, a supporting plate 15 is fixedly connected to the outer portion of the first sliding block 14, a first fixing plate 16 is fixedly arranged at the front portion of the wiring mechanism 6, a movable plate 17 is rotatably connected to the inner side of the first fixing plate 16, two limiting rings 18 are fixedly arranged at the top of the movable plate 17, a sliding groove plate 19 is fixedly arranged at the front portion and the rear portion of the movable plate 17, a pulley 20 is rotatably arranged at the inner side of one end of the movable plate 17, and one end of the supporting plate 15 is slidably connected with the sliding groove plate 19.
The angle adjusting structure 9 enables the lifting frame to enlarge the application range of the lifting hook according to the diameter of the steel reinforcement cage, and the steel reinforcement cage is prevented from being influenced by the lifting frame body or damaged by the lifting frame body during lifting.
In this embodiment, the bottom of the operation platform 1 is provided with a crawler moving mechanism 2, and the top of the operation platform 1 is fixedly provided with an electric power mechanism 4.
The crawler moving mechanism 2 is an existing crawler driving device, and the working principle is the same as that of an existing tank and an excavator crawler moving mode.
In this embodiment, the top of the operation platform 1 is provided with a winch 3, the outside of the winch 3 is provided with a wire rope, one end of the wire rope is provided with a hook, and the wire rope is adaptively matched with the wiring mechanism 6, the stop collar 18 and the pulley 20.
The winch 3 is matched with the wiring mechanism 6 to guide the trend of the steel wire rope, the pulley 20 is used for guiding and protecting the steel wire rope, and damage caused by moving friction of the steel wire rope is reduced.
In the embodiment, two steel diagonal draw bars 7 are fixedly arranged on one side, located on the portal frame 5, of the top of the operation platform 1, and hydraulic support leg mechanisms 8 are arranged on the periphery of the operation platform 1.
The steel diagonal draw bar 7 plays a supporting role on the portal frame 5, and the hydraulic support leg mechanism 8 plays a supporting role on the whole lifting frame.
In this embodiment, the top of operation platform 1 is provided with anticollision buffer structure 10, anticollision buffer structure 10 includes two electric telescopic handle 21, electric telescopic handle 21 is fixed to be set up at the top of operation platform 1, the top activity of operation platform 1 is provided with baffle 22, and baffle 22 and electric telescopic handle 21's one end fixed connection, one side activity of baffle 22 sets up two supporter two 24, and supporter two 24 are connected with baffle 22 through three movable rod 23, the inboard rotation of supporter two 24 is provided with anticollision roller 25, and be provided with three spring 26 between one side of supporter two 24 and one side of baffle 22.
The anti-collision buffer structure 10 can play a role in buffering the impact force generated when the reinforcement cage is lifted, so that the reinforcement cage is prevented from impacting the lifting frame body, and the service life is prevented from being influenced by damage.
In this embodiment, the anti-collision buffer structure 10 further includes a limiting clamping assembly, the limiting clamping assembly includes two convex plates 27, the convex plates 27 are fixedly connected with the baffle 22, a bidirectional screw rod 28 is connected between the two convex plates 27 in a penetrating and rotating manner, one end of the bidirectional screw rod 28 is fixedly connected with the output shaft of the second motor 29, two sliding blocks 30 are symmetrically and slidingly connected to the outer portion of the bidirectional screw rod 28, and two limiting rollers 31 are rotatably connected to the inner side of the second sliding block 30.
The limiting clamping assembly can play a limiting role on the bottom of the lifted reinforcement cage, can assist the reinforcement cage to move up and down, and ensures that the reinforcement cage shakes in the process of being placed in a foundation pit to influence the working efficiency.
In this embodiment, the spring 26 is located at the periphery of the corresponding movable rod 23, and the second slider 30 is in a zigzag shape.
The spring 26 provides elastic support for the second rack 24 and can cooperate with the movable rod 23 to buffer the impact force received by the anti-collision roller 25.
In this embodiment, two hydraulic support rods are disposed on one side of the top of the operation platform 1, which is located on the gantry 5, and the first fixing plate 16 is concave.
The hydraulic support rod is matched with the steel diagonal draw bar 7 to further support the portal frame 5.
It should be noted that, the invention is a self-propelled lifting frame for operation under high voltage line, the winch 3 needs to be manually assisted to perform cycloid when winding and assisting paying-off of the steel wire rope, or an existing cycloid mechanism is installed at the winch 3 to perform auxiliary cycloid operation, before use, the device lifting frame is lifted at a required place, the hydraulic support leg mechanism 8 is started, the bottom of the hydraulic support leg mechanism is enabled to be in contact with the whole lifting frame to perform auxiliary supporting and fixing positions, in an initial state, the movable plate 17 and the fixed plate one 16 are in a vertical state, and the lifting hook passes through the wiring mechanism 6, the limiting ring 18 and the pulley 20 sequentially with the steel wire rope;
Starting the winch 3 to pay off the steel wire rope, so that the lifting hook moves towards the ground, and according to the diameter of the reinforcement cage, starting the motor I12 to act on the unidirectional screw rod 13 to rotate, so that the sliding block I14 moves with the supporting plate 15, the supporting plate 15 acts on the movable plate 17 to rotate until the movable plate rotates to a certain angle, and stopping the movable plate until the movable plate rotates to a certain angle, wherein the working range of the lifting hook is enlarged, and collision between lifting of the reinforcement cage and a lifting frame body structure in an initial state is avoided;
Starting the electric telescopic rod 21 to enable the baffle 22 to act on the baffle 22 to move to a preset position in the opposite direction of the electric telescopic rod 21, when the lifting hook lifts the steel reinforcement cage lying on the ground under the action of the winch 3, the bottom of the steel reinforcement cage directly bumps against the anti-collision roller 25 due to inertia, the anti-collision roller 25 buffers the impact force generated by the steel reinforcement cage under the action of the spring 26, then starting the motor II 29, enabling the slider II 30 to draw close towards the two sides of the bottom of the steel reinforcement cage under the action of the bidirectional screw rod 28 until the limiting roller 31 is attached to the two sides of the bottom of the steel reinforcement cage, limiting the bottom of the steel reinforcement cage, ensuring that the steel reinforcement cage can move up and down in a limiting area to avoid shaking to affect installation, and at the moment, enabling the lifted steel reinforcement cage to move down through the action of the winch 3 until the bottom of the steel reinforcement cage is installed in a preset foundation pit, and then lifting work of the steel reinforcement cage can be completed.