Anti-overturning hoist for polar scientific expedition

Abstract

The application belongs to the technical field of polar lifting, and more specifically, it is particularly for a polar scientific expedition use anti-toppling lifting machine. In order to overcome the shortcoming that the polar lifting machine will tip over due to ice cracking during movement. Including a machine frame, the machine frame is provided with an electric control roller, the machine frame is provided with a lifting rope, the machine frame is installed with a first motor, the output shaft of the first motor is fixedly connected with a connecting frame which is rotationally connected with the machine frame, the connecting frame is rotationally connected with a rotating frame, the lifting rope passes through the rotating frame, the machine frame is installed with a second motor, and the second motor is fixedly connected with a limiting frame. The application changes the position of the connecting frame and the position of the rotating frame, adjusts the position of the flexible block limiting the lifting rope, so that the center of gravity of the machine frame, the lifting rope and the weight thereof moves to the position opposite to the tilting direction, reduces the probability of the machine frame tipping over, and thus guarantees the stability of the machine frame.

Description

Technical Field

[0001] This invention relates to the field of polar lifting technology, and more specifically, to an anti-tipping lifting machine for polar scientific research. Background Technology

[0002] In polar scientific expeditions, small tracked cranes are key equipment for transporting scientific research equipment, materials, and samples. However, the polar environment is extremely harsh, covered by ice and snow all year round, and the ice surface conditions are complex and changeable. This poses a severe challenge to the stable operation of the cranes. The biggest risk faced by tracked cranes comes from the tipping of their frames. If the ice surface suddenly breaks or the snow becomes uneven during the movement of the crane, it will cause the crane to shake significantly. This will cause the load on the crane and the hoisting rope to swing significantly, causing the overall center of gravity of the crane, hoisting rope, and the load on it to change, thereby affecting the stability of the crane and even causing the frame to tip over, threatening the safety of the operators. Summary of the Invention

[0003] To overcome the drawback of polar cranes tipping over due to ice breakage during movement, this invention provides an anti-tipping crane for polar scientific research.

[0004] The technical solution of the present invention is as follows: a polar scientific research anti-tipping hoist, comprising a frame, an electrically controlled roller, a hoisting rope, the electrically controlled roller being fixedly connected to one end of the hoisting rope, the electrically controlled roller being used to wind and release the hoisting rope, a first motor being mounted on the frame, the output shaft of the first motor being fixedly connected to a connecting frame rotatably connected to the frame, a rotating frame being rotatably connected to the connecting frame, the hoisting rope passing through the rotating frame, a second motor being mounted on the frame, the second motor being fixedly connected to a limit frame, the rotating frame sliding within the limit frame, the limit frame being used to drive the rotating frame to move.

[0005] Preferably, the rotating frame is fixedly connected to a flexible block for wrapping the suspension rope, the flexible block being used to cushion the swaying of the suspension rope.

[0006] Preferably, the limiting frame is slidably connected to a sliding frame, and the rotating frame is used to press the sliding frame to move.

[0007] Preferably, a weight is provided below the rotating frame, a third motor is installed on the rotating frame, a winder is fixedly connected to the output shaft of the third motor, the winder is fixedly connected to the weight, the suspension rope passes through the weight, and the winder is used to drive the weight to move.

[0008] Preferably, an elastic cylinder is fixedly connected inside the weight, and a limiting hole is provided inside the elastic cylinder, through which the lifting rope slides.

[0009] Preferably, the diameter of the limiting hole gradually increases from top to bottom.

[0010] Preferably, the frame is fixedly connected to an insulation shell, and the electrically controlled roller is rotatably connected to the insulation shell. The insulation shell is used to cover a section of the suspension rope on the electrically controlled roller.

[0011] Preferably, the insulation shell is fixedly connected to a scraper block, and the suspension rope passes through the scraper block.

[0012] Preferably, a loosening frame is slidably connected inside the insulation shell, and symmetrically distributed elastic plates are fixedly connected to the loosening frame. The loosening frame is driven by a transmission component, and an elastic component is fixedly connected between the loosening frame and the insulation shell.

[0013] Preferably, the opposite sides of the symmetrically distributed elastic plates are provided with a plurality of spaced-apart partition grooves, which are used to limit the movement of the suspension rope.

[0014] The beneficial effects of the above technical solution are as follows: By changing the positions of the connecting frame and the rotating frame, and adjusting the position of the flexible block to limit the lifting rope, the center of gravity of the frame, the lifting rope, and the load moves to a position opposite to the tilting direction, reducing the probability of the frame tipping over and thus ensuring the stability of the frame. When the lifting rope sways after moving, the weight is released through the rewinder. The weight falls downwards due to its own weight, and the weight straightens the lifting rope through the elastic cylinder, so that the lifting rope stops swaying quickly, thereby ensuring the stability of the lifting rope. Stability is improved, reducing the probability of frame tipping over. During the winding and unwinding of the hoisting rope, the loosening frame drives the elastic plate to move back and forth. The elastic plate presses against the winding point of the hoisting rope, causing the winding point to shake. This loosens the winding point and removes the ice and snow adhering to it, thereby reducing the amount of ice and snow at the winding point and ensuring normal use of the hoisting rope. Furthermore, during the winding process, the dividing groove divides the winding point of the hoisting rope into multiple sections, reducing the probability of the sections sticking together due to ice and snow cover, thus ensuring normal winding and unwinding of the hoisting rope. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the weight block of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the connecting frame, rotating frame, and flexible block of the present invention;

[0018] Figure 4 This is a three-dimensional structural diagram of the limiting hole of the present invention;

[0019] Figure 5 This is a three-dimensional structural diagram of the heat insulation shell of the present invention;

[0020] Figure 6 This is a three-dimensional structural diagram of the elastic plate of the present invention;

[0021] Figure 7 This is a three-dimensional structural diagram of the partition groove of the present invention.

[0022] The markings in the diagram are as follows: 1-frame, 101-electrically controlled roller, 2-suspension rope, 3-first motor, 4-connecting frame, 5-rotating frame, 6-flexible block, 7-second motor, 8-limiting frame, 9-sliding frame, 10-weight, 11-third motor, 12-winding device, 13-elastic cylinder, 14-limiting hole, 16-insulation shell, 17-scraper, 18-loosening frame, 19-elastic plate, 20-elastic component, 21-separation groove. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0024] Example 1

[0025] When existing small tracked cranes are moved in polar environments, if the ice surface suddenly breaks or the snow becomes uneven, the crane will shake significantly. This will cause the load on the crane and the hoisting rope to swing wildly, changing the overall center of gravity of the crane, hoisting rope and the load on it. This will affect the stability of the crane and may even cause the frame to tip over, threatening the safety of the operators.

[0026] A type of anti-tipping crane for polar scientific research, such as Figures 1-3As shown, the system includes a frame 1, on which an electrically controlled roller 101 is mounted. In this embodiment, the electrically controlled roller 101 is rotatably connected to the frame 1. The frame 1 is equipped with a control terminal (not shown in the figure). The frame 1 is movable and is equipped with a level instrument (an existing structure not shown in the figure). When the frame 1 tilts, the level instrument detects the tilt and feeds back the tilt status to the control terminal. The frame 1 is equipped with a suspension rope 2, and the electrically controlled roller 101 is fixedly connected to the left end of the suspension rope 2. The electrically controlled roller 101 is used to wind and unwind the suspension rope 2. The frame 1 is equipped with a first motor 3, which is electrically connected to the control terminal. The output shaft of the first motor 3 is fixedly connected to a connecting frame 4 that is rotatably connected to the frame 1. The output shaft is used to drive the connecting frame 4 to rotate left and right. The connecting frame 4 is rotatably connected to the rotating frame 5. The rotating frame 5 is fixedly connected to the flexible block 6. The flexible block 6 is used to wrap the suspension rope 2 and to buffer the swaying of the suspension rope 2. The frame 1 is equipped with a second motor 7 that is electrically connected to the control terminal. The second motor 7 is fixedly connected to the limit frame 8. The second motor 7 is used to drive the limit frame 8 to rotate back and forth. The rotating frame 5 slides within the limit frame 8. The limit frame 8 is used to drive the rotating frame 5 to move so that the rotating frame 5 can rotate back and forth. The limit frame 8 is slidably connected to the sliding frame 9. The rotating frame 5 is used to squeeze the sliding frame 9 to move, so as to extend the space between the limit frame 8 and the sliding frame 9 and increase the movable distance of the rotating frame 5 without interfering with the position of the suspension rope 2.

[0027] The specific working principle is as follows:

[0028] When the operator needs to use this device to lift heavy objects, the operator turns on the electric control roller 101 through the control terminal. The electric control roller 101 winds up the lifting rope 2, which lifts the heavy object. Then the operator controls the frame 1 to move and move the heavy object to the designated position. During the movement of the frame 1, if the frame 1 tilts due to the sudden breakage of the ice surface in the polar region or the unevenness of the snow, the lifting rope 2 will cause the heavy object to sway. The level instrument detects the tilt of the frame 1 and feeds back the tilt status to the control terminal. The control terminal then controls the first motor 3 and the second motor 7 to start.

[0029] When the first motor 3 and the second motor 7 are turned on, taking the frame 1 and the hoisting rope 2 tilting to the left as an example, the output shaft of the first motor 3 drives the connecting frame 4 to flip to the right, the connecting frame 4 drives the rotating frame 5 to flip to the right, and the rotating frame 5 drives the hoisting rope 2 to move to the right through the flexible block 6, so that the hoisting rope 2 and its weight move in the opposite direction to its tilting direction. Taking the frame 1 and the hoisting rope 2 tilting backward as an example, the output shaft of the second motor 7 drives the limiting frame 8 to flip forward, the limiting frame 8 squeezes the rotating frame 5 to move forward, so that the right end of the rotating frame 5 rotates forward, and the rotating frame 5 drives the hoisting rope 2 to move forward through the flexible block 6. By changing the position of the connecting frame 4 and the rotating frame 5, the position of the flexible block 6 limiting the hoisting rope 2 is adjusted, so that the center of gravity of the frame 1, the hoisting rope 2 and its weight move to the opposite position to the tilting direction, reducing the probability of the frame 1 tipping over, thereby ensuring the stability of the frame 1.

[0030] After the device is no longer in use, the operator removes the heavy object from the hoisting rope 2 and shuts down the first motor 3 and the second motor 7 via the control terminal.

[0031] Example 2

[0032] When existing cranes move or sway, the lifting ropes of the cranes will swing continuously, which will reduce the stability of the lifting ropes during use and cause safety hazards during the use of the cranes.

[0033] Based on Example 1, such as Figure 3 and Figure 4As shown, a weight 10 is positioned below the rotating frame 5. The rotating frame 5 is equipped with a third motor 11 electrically connected to a control terminal. A winder 12 is fixedly connected to the output shaft of the third motor 11. The winder 12 consists of a pulley and a connecting rope. The pulley of the winder 12 is fixedly connected to the output shaft of the third motor 11, and the connecting rope of the winder 12 is fixedly connected to the weight 10. The third motor 11 has an existing locking structure. When the winder 12 is in the winding state, the output shaft of the third motor 11 is locked to ensure the stability of the weight 10 on the winder 12. A lifting rope 2 passes through the weight 10. The winder 12 is used to release and wind up the weight 10 to allow it to move. An elastic cylinder 13 is fixedly connected inside the weight 10. A limit hole 14 is provided inside the elastic cylinder 13. The lifting rope 2... Sliding within the limiting hole 14, when the hoisting rope 2 sways after movement, the operator starts the third motor 11 via the control terminal. The output shaft of the third motor 11 releases the weight 10 through the winding device 12. The weight 10 falls downwards due to its own weight, and the weight 10 straightens the hoisting rope 2 through the elastic cylinder 13, so that the hoisting rope 2 stops swaying quickly, thereby ensuring the stability of the hoisting rope 2 and reducing the probability of the frame 1 tipping over. In addition, the diameter of the limiting hole 14 gradually increases from top to bottom to gradually straighten the hoisting rope 2 segment by segment, quickly reducing the swaying amplitude of the hoisting rope 2 and ensuring the stability of the hoisting rope 2. After the hoisting rope 2 stops swaying, the output shaft of the third motor 11 winds up the hoisting rope 2 through the winding device 12, and then the third motor 11 is turned off via the control terminal.

[0034] Example 3

[0035] The extremely low temperatures in the polar regions cause moisture in the air to freeze rapidly on the hoisting ropes. Furthermore, during the operation of the crane, ice and snow will directly adhere to the hoisting ropes. When the hoisting ropes are wound up, this ice and snow will cause the loops of rope to stick together. When the hoisting ropes are released for the next time, the sticking together will cause the ropes to jam and knot, thus affecting the normal use of the hoisting ropes.

[0036] Based on Example 1, such as Figure 1 , Figure 5 and Figure 6 As shown, the frame 1 is fixedly connected to an insulation shell 16, which is used to cover the winding part of the hoisting rope 2 to reduce the probability that the hoisting rope 2 cannot be wound up or down due to being covered by ice and snow, thereby ensuring the stability of the hoisting rope 2 in the polar environment. In the above embodiment, the electric control roller 101 is rotatably connected to the frame 1. In this embodiment, the electric control roller 101 is rotatably connected to the insulation shell 16, and the insulation shell 16 is fixedly connected to a scraper block 17. The hoisting rope 2 passes through the scraper block 17. During the winding process of the hoisting rope 2, each section of the hoisting rope 2 passes through the scraper block 17 in sequence. The scraper block 17 wipes off the ice and snow covering the hoisting rope 2, reducing the amount of ice and snow at the winding point of the hoisting rope 2 after winding, thereby ensuring the normal use of the hoisting rope 2.

[0037] like Figure 6 and Figure 7 As shown, a loosening frame 18 is slidably connected inside the insulation shell 16. Two symmetrically distributed elastic plates 19 are fixedly connected to the loosening frame 18. The loosening frame 18 is connected to the electric control roller 101 via a transmission component. This transmission component consists of a gear and a rack. The gear is fixedly connected to the electric control roller 101, and the rack is fixedly connected to the loosening frame 18. An elastic element 20, which is a spring, is fixedly connected between the loosening frame 18 and the insulation shell 16. During the rotation of the electric control roller 101 and the retraction / release of the suspension rope 2, the electric control roller 101 transmits power to the loosening frame 19 via the transmission component. 8. When the missing gear meshes with the rack, the missing gear drives the loosening frame 18 through the rack, causing the elastic element 20 to deform. When the missing gear and the rack lose mesh, the elastic element 20 resets and drives the loosening frame 18 to reset. The loosening frame 18 drives the rack to reset, so that the loosening frame 18 moves back and forth. The loosening frame 18 drives the two elastic plates 19 to move back and forth. The two elastic plates 19 squeeze the ice chips attached to the winding point of the hoisting rope 2, causing the ice chips attached to the winding point of the hoisting rope 2 to fall off, thereby reducing the amount of ice and snow at the winding point of the hoisting rope 2 and ensuring the normal use of the hoisting rope 2.

[0038] like Figure 7 As shown, each of the two elastic plates 19 has several spaced-apart partition grooves 21 on its opposite sides. During the winding of the suspension rope 2, the partition grooves 21 limit the suspension rope 2 and divide the winding part of the suspension rope 2 into multiple segments, reducing the probability of the segments of the suspension rope 2 sticking together due to ice and snow cover, thereby ensuring the normal winding and unwinding of the suspension rope 2.

[0039] The above are merely embodiments of the present invention and are not intended to limit the invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A tilt-proof hoist for polar scientific research, characterized in that, The system includes a frame (1), which is equipped with an electrically controlled roller (101) and a suspension rope (2). The electrically controlled roller (101) is fixedly connected to one end of the suspension rope (2). The electrically controlled roller (101) is used to wind and unwind the suspension rope (2). The frame (1) is equipped with a first motor (3). The output shaft of the first motor (3) is fixedly connected to a connecting frame (4) that is rotatably connected to the frame (1). The connecting frame (4) is rotatably connected to a rotating frame (5). The suspension rope (2) passes through the rotating frame (5). The frame (1) is equipped with a second motor (7). The second motor (7) is fixedly connected to a limit frame (8). The rotating frame (5) slides within the limit frame (8). The limit frame (8) is used to drive the rotating frame (5). The frame (5) moves; the rotating frame (5) is fixedly connected to a flexible block (6) for wrapping the suspension rope (2), the flexible block (6) is used to buffer the swaying of the suspension rope (2); the limiting frame (8) is slidably connected to a sliding frame (9), the rotating frame (5) is used to squeeze the sliding frame (9) to move; a weight (10) is provided below the rotating frame (5), the rotating frame (5) is equipped with a third motor (11), the output shaft of the third motor (11) is fixedly connected to a winding device (12), the winding device (12) is composed of a pulley and a connecting rope, the connecting rope of the winding device (12) is fixedly connected to the weight (10), the suspension rope (2) passes through the weight (10), and the connecting rope of the winding device (12) is used to drive the weight (10) to move.

2. The anti-tipping hoist for polar scientific research according to claim 1, characterized in that, An elastic cylinder (13) is fixed inside the weight (10), and a limiting hole (14) is provided inside the elastic cylinder (13). The lifting rope (2) slides inside the limiting hole (14).

3. The anti-tipping hoist for polar scientific research according to claim 2, characterized in that, The diameter of the limiting hole (14) gradually increases from top to bottom.

4. The anti-tipping hoist for polar scientific research according to claim 1, characterized in that, The frame (1) is fixedly connected to an insulation shell (16), and the electric control roller (101) is rotatably connected to the insulation shell (16). The insulation shell (16) is used to cover a section of the suspension rope (2) on the electric control roller (101).

5. The anti-tipping hoist for polar scientific research according to claim 4, characterized in that, The heat insulation shell (16) is fixedly connected to a scraper block (17), and the suspension rope (2) passes through the scraper block (17).

6. The anti-tipping hoist for polar scientific research according to claim 5, characterized in that, The insulation shell (16) is slidably connected to a loosening frame (18), and the loosening frame (18) is fixed with symmetrically distributed elastic plates (19). The loosening frame (18) and the electric control roller (101) are driven by a transmission component. The loosening frame (18) and the insulation shell (16) are fixed with an elastic component (20).

7. The anti-tipping hoist for polar scientific research according to claim 6, characterized in that, The elastic plates (19) are symmetrically distributed with several spaced-apart grooves (21) on opposite sides. The grooves (21) are used to limit the suspension rope (2).

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