Remotely controllable crawler crane

Abstract

The crawler crane comprises a base, a connecting seat is rotationally connected to the lower wall of the base, two crawler wheels are connected to the two sides of the connecting seat, side plates are fixedly arranged on the side faces of the two crawler wheels, and two supporting seats are symmetrically and rotationally arranged on the two side plates; the four supporting seats are rotationally arranged on the side plates on the two sides through rotating rods, two rotating grooves corresponding to the rotating rods are symmetrically formed in each side plate, limiting mechanisms corresponding to the rotating rods are arranged in the four rotating grooves, and a control table is further fixedly arranged on the base. According to the principle that current can be generated when a closed loop wire cuts magnetic induction lines, the magnetic plate is remotely controlled to move up and down to control the current direction in the wire so as to control the change of magnetic poles on the iron core, so that the magnetic block is driven to rotate forwards or reversely to complete forward and reverse power transmission of the motor, and remote control over lifting of the cargo boom is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of crawler crane control, and in particular to a remotely controlled crawler crane. Background Art

[0002] Crawler crane is a self-propelled crane used in high-rise building construction. It is a boom-rotating crane that uses crawler tracks to move. The crawler tracks have a large ground contact area, good trafficability, strong adaptability, and can move with loads. They are suitable for hoisting operations at construction sites. They can perform a variety of operations such as digging, tamping, and piling. However, due to their slow travel speed, other vehicles are required to move the crane over long distances.

[0003] In the prior art, traditional crawler cranes are usually equipped with a cab, and workers are required to sit in the cab to control the crane to work. However, since the weight of the lifted cargo is sometimes difficult to measure, the crane may tip over during lifting, which poses a great threat to the workers sitting in the cab and greatly reduces the workers' safety. To this end, we propose a remotely controlled crawler crane to solve the above problem. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: the traditional crawler crane needs manual driving to operate, which has certain safety hazards, and proposes a crawler crane that can be remotely controlled.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A remotely controlled crawler crane comprises a base, a connecting seat is rotatably connected to the lower wall of the base, two crawler wheels are connected to the connecting seat on both sides, side plates are fixedly arranged on the sides of the two crawler wheels, two support seats are symmetrically rotatably arranged on the two side plates, four support seats are rotatably arranged on the side plates on both sides through a rotating rod, two rotating grooves corresponding to the rotating rods are symmetrically provided on the two side plates, and limiting mechanisms corresponding to the rotating rods are provided in the four rotating grooves, a control console is also fixedly arranged on the base, a cavity is opened in the control console, a motor is fixedly arranged on one side wall of the cavity, and a connecting rod is rotatably arranged on one side wall of the control console, the connecting rod penetrates the side wall of the control console and is fixedly connected to the output end of the motor, a power transmission device corresponding to the motor is provided in the cavity, a lifting arm is also fixedly arranged on the end of the connecting rod away from the motor, the lifting arm is connected to the base through a telescopic support rod, and a connecting groove corresponding to the telescopic support rod is fixedly arranged on the lower wall of the lifting arm, and a hook is also suspended on the end of the lifting arm away from the control console.

[0007] Preferably, the limiting mechanism includes four limiting plates, and the side walls of the four rotating grooves are provided with storage grooves. The four limiting plates are respectively slidably arranged in the four storage grooves. Two limiting grooves corresponding to the limiting plates are arranged on the side walls of each rotating rod. The two limiting grooves on each rotating rod are vertically arranged, and each limiting plate is provided with a corresponding control mechanism.

[0008] Preferably, the control mechanism includes four levers, which are fixedly arranged on four limiting plates respectively, and each of the levers slides through the side plates, and each of the side plates is symmetrically provided with two strip-shaped sliding openings corresponding to the levers.

[0009] Preferably, the power transmission device includes a magnetic block, which is rotatably arranged on a side wall of the cavity through a limiting rod, two conductive sheets are fixedly arranged on the motor, the magnetic block is rotatably arranged between the two conductive sheets, and brushes corresponding to the conductive sheets are fixedly arranged at both ends of the magnetic block, two power transmission lines are fixedly arranged on the magnetic block, the two power transmission lines pass through the magnetic block and are respectively connected to the two brushes, and a rotation guide mechanism corresponding to the magnetic block is also provided in the cavity.

[0010] Preferably, the rotating guide mechanism includes an iron core, which is fixed on the upper wall of the cavity by a fixing rod and is arranged close to the magnetic block. A wire is wound around the iron core, and the wire is arranged in a closed loop. A current control device corresponding to the wire is provided in the cavity.

[0011] Preferably, the current control device comprises two magnetic plates, both of which are fixed on the lower wall of the cavity by two electronic telescopic rods, and the conductive wire is fixed through two support rods and arranged between the two magnetic plates, the two support rods are symmetrically arranged on both sides of the magnetic plates, and both ends of the two support rods close to the conductive wires are fixedly provided with rings, and both of the rings are fixedly sleeved on the conductive wires.

[0012] Preferably, the motor is a servo self-locking motor.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a lever, the control of the limiting plate is achieved, and by toggling the lever, the limiting plate can be driven to slide out of the limiting groove and into the storage groove, and then the limiting plate and the limiting groove cooperate to limit the rotating rod, so that the folding and lowering of the support seat can be completed, and by adopting a servo self-locking motor, the motor can be reversed by reverse power transmission, and can self-lock after power failure to ensure that the crane arm can stop, and by setting an electronic telescopic rod, the up and down movement of the magnetic plate can be remotely controlled, and the up and down movement of the magnetic plate can be controlled so that the wire completes the cutting of the magnetic flux lines, and then on the wire Current is generated inside the motor, and through the cooperation of the wire and the iron core, the two ends of the iron core are magnetic when the wire is energized, which will drive the magnetic block to rotate according to the magnetic poles of the iron core until it is parallel to the iron core. At this time, the brush contacts the conductive sheet, thereby realizing the current transmission to the motor. By controlling the magnetic plate to move up or down, two opposite currents are generated, thereby realizing the control of the change of the magnetic poles at both ends of the iron core, and then driving the magnetic block to rotate forward or reverse, realizing the transmission of forward or reverse current to the motor, and then realizing remote control of the lifting and lowering of the crane arm. Workers do not need to sit in the cab to control the crane, which greatly reduces safety hazards and ensures the safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a remotely controlled crawler crane proposed by the present invention;

[0015] Figure 2 It is a schematic diagram of the side structure inside the console;

[0016] Figure 3 for Figure 1 The structural diagram at A in the middle;

[0017] Figure 4 for Figure 2 Schematic diagram of the structure shown in Figure 1.

[0018] In the figure: 1 base, 2 connecting seat, 3 track wheel, 4 side plate, 5 rotating rod, 6 support seat, 7 strip slide, 8 control console, 9 motor, 10 connecting rod, 11 lifting arm, 12 telescopic support rod, 13 connecting slot platform, 14 hook, 15 cavity, 16 conductive sheet, 17 wire, 18 support rod, 19 collar, 20 electronic telescopic rod, 21 magnetic plate, 22 rotating slot, 23 storage slot, 24 limiting plate, 25 lever, 26 limiting slot, 27 magnetic block, 28 transmission line, 29 brush, 30 iron core, 31 fixing rod, 32 limiting rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] reference Figure 1-4A remotely controlled crawler crane comprises a base 1, a connecting seat 2 is rotatably connected to the lower wall of the base 1, two crawler wheels 3 are connected to the two sides of the connecting seat 2, side plates 4 are fixedly arranged on the sides of the two crawler wheels 3, two support seats 6 are symmetrically rotatably arranged on the two side plates 4, four support seats 6 are rotatably arranged on the side plates 4 on both sides through a rotating rod 5, two rotating grooves 22 corresponding to the rotating rod 5 are symmetrically opened on the two side plates 4, and the four rotating grooves 22 are each provided with a limiting mechanism corresponding to the rotating rod 5, and the limiting mechanism comprises four limiting plates 24, and the side walls of the four rotating grooves 22 are each provided with a receiving groove 23, and the four limiting plates 24 are respectively slidably arranged in the four receiving grooves 23, and each rotating rod 5 is provided with two corresponding limiting plates 24 on the side wall The limiting grooves 26 of each rotating rod 5 are arranged vertically, and each limiting plate 24 is provided with a corresponding control mechanism, which includes four levers 25, which are fixedly arranged on the four limiting plates 24, respectively, and each lever 25 is slidably penetrated through the side plates 4, and each side plate 4 is symmetrically provided with two strip-shaped sliding openings 7 corresponding to the levers 25. A control console 8 is also fixedly arranged on the base 1, and a cavity 15 is opened in the control console 8. A motor 9 is fixedly arranged on one side wall of the cavity 15. The motor 9 adopts a servo self-locking motor. By adopting the servo self-locking motor, the motor 9 can be reversed by reverse power transmission, and can be self-locked after power failure, so as to ensure that the boom 11 can stop, and a part of the control console 8 A connecting rod 10 is rotatably arranged on the side wall, and the connecting rod 10 passes through the side wall of the control console 8 and is fixedly connected to the output end of the motor 9. A power transmission device corresponding to the motor 9 is arranged in the cavity 15, and the power transmission device includes a magnetic block 27, and the magnetic block 27 is rotatably arranged on one side wall of the cavity 15 through a limiting rod 32. Two conductive sheets 16 are fixedly arranged on the motor 9, and the magnetic block 27 is rotatably arranged between the two conductive sheets 16, and brushes 29 corresponding to the conductive sheets 16 are fixedly arranged at both ends of the magnetic block 27. Two transmission lines 28 are fixedly arranged on the magnetic block 27, and the two transmission lines 28 pass through the magnetic block 27 and are connected to the two brushes 29 respectively. A rotation guide mechanism corresponding to the magnetic block 27 is also arranged in the cavity 15, and the rotation guide mechanism includes an iron core 30, and the iron core 30 The iron core 30 is fixedly arranged on the upper wall of the cavity 15 by a fixing rod 31, and the iron core 30 is arranged close to the magnetic block 27. A conductor 17 is wound around the iron core 30, and the conductor 17 is arranged in a closed loop. A current control device corresponding to the conductor 17 is arranged in the cavity 15, and the current control device includes two magnetic plates 21, and the two magnetic plates 21 are fixedly arranged on the lower wall of the cavity 15 through two electronic telescopic rods 20. The conductor 17 is fixedly arranged through the two magnetic plates 21 through two support rods 18. The two support rods 18 are symmetrically arranged on both sides of the magnetic plate 21, and the ends of the two support rods 18 close to the conductor 17 are fixedly arranged with a ring 19, and the two rings 19 are fixedly sleeved on the conductor 17. The end of the connecting rod 10 away from the motor 9 is also fixedly provided with a lifting arm 11.The lifting arm 11 is connected to the base 1 through a telescopic support rod 12, and a connecting groove 13 corresponding to the telescopic support rod 12 is fixedly provided on the lower wall of the lifting arm 11. A hook 14 is also suspended at the end of the lifting arm 11 away from the control console 8. By setting a lever 25, the control of the limiting plate 24 is realized. By toggling the lever 25, the limiting plate 24 can be driven to slide out of the limiting groove 26 and into the storage groove 23. Then, through the cooperation between the limiting plate 24 and the limiting groove 26, the restriction of the rotating rod 5 is realized, so that the folding and lowering of the support seat 6 can be completed. By setting an electronic telescopic rod 20, the up and down movement of the magnetic plate 21 can be remotely controlled. By controlling the up and down movement of the magnetic plate 21, the wire 17 completes the cutting of the magnetic flux lines, and then Current is generated in the wire 17. Through the cooperation between the wire 17 and the iron core 30, when the wire 17 is energized, the two ends of the iron core 30 are magnetic, which will drive the magnetic block 27 to rotate according to the magnetic poles of the iron core 30 until it is parallel to the iron core 30. At this time, the brush 29 contacts the conductive sheet 16, thereby realizing the current transmission to the motor 9. By controlling the magnetic plate 21 to move up or down, two opposite currents are generated, thereby realizing the control of the change of the magnetic poles at both ends of the iron core 30, and then driving the magnetic block 27 to rotate forward or reverse, realizing the transmission of forward or reverse current to the motor 9, and then realizing the remote control of lifting and lowering the crane arm 11. There is no need for workers to sit in the cab to control the crane, which greatly reduces safety hazards and ensures the safety of workers.

[0021] In the present invention, when using a crawler crane for lifting, it is only necessary to move the crane to the desired position, and then toggle the lever 25 to drive the limiting plate 24 to slide out of the limiting groove 26 and store it in the storage groove 23, so that the rotating rod 5 can be rotated to lower the support seat 6, and then the lever 25 is toggled to drive the limiting plate 24 to be stuck in the limiting groove 26. After the support seat 6 is restricted, the crane can be supported. The electronic telescopic rod 20 is extended by remote control to drive the magnetic plate 21 to move upward. At this time, the wire 17 cuts the magnetic flux line downward, and a current is generated in the closed wire 17 loop, so that the two ends of the iron core 30 have magnetic poles. The magnetic block 27 rotates under the attraction of the magnetic poles at both ends of the iron core 30 until the magnetic block 27 is parallel to the core 30, and the magnetic poles at both ends of the magnetic block 27 are consistent with the magnetic poles at both ends of the core 30. When the magnetic block 27 rotates to be parallel to the core 30, the brush 29 contacts the conductive sheet 16, and the transmission line 28 is connected to the conductive sheet 16 through the brush 29, thereby transmitting power to the motor 9. The motor 9 starts to rotate when it is energized, thereby driving the connecting rod 10 to rotate, and then driving the boom 11 to be lowered. After the electronic telescopic rod 20 is controlled to stop, the magnetic plate 21 no longer moves, and the wire 17 no longer cuts the magnetic flux lines, so that there is no current in the wire 17 of the closed loop, and the core 30 is no longer magnetic. The magnetic block 27 rotates to a vertical state again under the action of gravity, thereby disconnecting the power supply to the motor 9. When the motor 9 stops, the descent of the crane arm 11 can be stopped. When the hook 14 hooks the object to be lifted, the electronic telescopic rod 20 is remotely controlled to shrink and drive the magnetic plate 21 to move downward, so that the wire 17 in the closed loop relatively cuts the magnetic flux lines upward, and the conductive wire of the closed loop generates a current in the opposite direction to that when the crane arm 11 descends, so that the two ends of the iron core 30 are equipped with magnetic poles opposite to those when the crane arm 11 descends, thereby attracting the magnetic block 27 to rotate in the opposite direction until the magnetic block 27 is horizontally parallel to the iron core 30, so that the brushes 29 corresponding to the two transmission lines 28 are reversely connected to the conductive sheet 16, which will drive the motor 9 to reverse, thereby driving the crane arm 11 to lift, thereby completing the lifting, and through remote control. The program controls the extension and retraction of the electronic telescopic rod 20 to drive the movement of the magnetic plate 21, so that the wire 17 can complete the movement of cutting the magnetic flux lines, thereby generating current to make the iron core 30 magnetic, and then the magnetic block 27 follows the iron core 30 to complete the rotation, and transmits power to the motor 9 to ensure the operation of the lifting arm 11. By moving the magnetic plate 21 up or down, the direction of the current in the wire 17 is changed, thereby changing the magnetic pole of the iron core 30, so that the magnetic block 27 can follow the forward or reverse rotation, thereby realizing the directional power transmission to the motor 9, and then realizing the remote control of lifting or lowering the lifting arm 11, and workers are no longer required to sit in the cab for control, which effectively avoids safety hazards.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A remotely controllable crawler crane, comprising a base (1), characterized in that: A connecting seat (2) is rotatably connected to the lower wall of the base (1), two track wheels (3) are connected to the two sides of the connecting seat (2), and side plates (4) are fixedly arranged on the sides of the two track wheels (3). Two support seats (6) are symmetrically rotatably arranged on the two side plates (4), and the four support seats (6) are rotatably arranged on the side plates (4) on both sides through a rotating rod (5). Two rotating grooves (22) corresponding to the rotating rod (5) are symmetrically opened on the two side plates (4), and limiting mechanisms corresponding to the rotating rod (5) are arranged in the four rotating grooves (22). A control console (8) is also fixedly arranged on the base (1), and a cavity (15) is opened in the control console (8), and the cavity ( A motor (9) is fixedly arranged on one side wall of the control console (15), and a connecting rod (10) is rotatably arranged on one side wall of the control console (8), the connecting rod (10) penetrates the side wall of the control console (8) and is fixedly connected to the output end of the motor (9), a power transmission device corresponding to the motor (9) is arranged in the cavity (15), a lifting arm (11) is also fixedly arranged on the end of the connecting rod (10) away from the motor (9), the lifting arm (11) is connected to the base (1) through a telescopic support rod (12), and a connecting groove (13) corresponding to the telescopic support rod (12) is fixedly arranged on the lower wall of the lifting arm (11), and a hook (14) is also suspended on the end of the lifting arm (11) away from the control console (8).

2. A remotely controlled crawler crane according to claim 1, characterized in that: The limiting mechanism comprises four limiting plates (24), the side walls of the four rotating grooves (22) are provided with receiving grooves (23), the four limiting plates (24) are respectively slidably arranged in the four receiving grooves (23), the side walls of each rotating rod (5) are provided with two limiting grooves (26) corresponding to the limiting plates (24), the two limiting grooves (26) on each rotating rod (5) are vertically arranged, and each limiting plate (24) is provided with a corresponding control mechanism.

3. A remotely controlled crawler crane according to claim 2, characterized in that: The control mechanism comprises four levers (25), the four levers (25) being fixedly arranged on four limiting plates (24) respectively, and each lever (25) being slidably arranged to penetrate the side plate (4), and each side plate (4) being symmetrically provided with two strip-shaped sliding openings (7) corresponding to the levers (25).

4. The remotely controllable crawler crane according to claim 1, characterized in that: The power transmission device comprises a magnetic block (27), the magnetic block (27) being rotatably arranged on a side wall of a cavity (15) through a limiting rod (32), two conductive sheets (16) being fixedly arranged on the motor (9), the magnetic block (27) being rotatably arranged between the two conductive sheets (16), and brushes (29) corresponding to the conductive sheets (16) being fixedly arranged at both ends of the magnetic block (27), two power transmission lines (28) being fixedly arranged on the magnetic block (27), the two power transmission lines (28) passing through the magnetic block (27) being respectively connected to the two brushes (29), and a rotation guide mechanism corresponding to the magnetic block (27) is also arranged in the cavity (15).

5. The remotely controllable crawler crane according to claim 4, characterized in that: The rotating guide mechanism comprises an iron core (30), the iron core (30) is fixedly arranged on the upper wall of the cavity (15) through a fixing rod (31), and the iron core (30) is arranged close to the magnetic block (27), a wire (17) is wound around the iron core (30), and the wire (17) is arranged in a closed loop, and a current control device corresponding to the wire (17) is arranged in the cavity (15).

6. A remotely controllable crawler crane according to claim 5, characterized in that: The current control device comprises two magnetic plates (21), the two magnetic plates (21) are fixedly arranged on the lower wall of the cavity (15) through two electronic telescopic rods (20), the wire (17) is fixedly passed through between the two magnetic plates (21) through two support rods (18), the two support rods (18) are symmetrically arranged on both sides of the magnetic plate (21), and the ends of the two support rods (18) close to the wire (17) are fixedly arranged with a ring (19), and the two rings (19) are fixedly sleeved on the wire (17).

7. The remotely controllable crawler crane according to claim 1, characterized in that: The motor (9) is a servo self-locking motor.

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