Hoisting device for ton bag vehicle and operation method

Abstract

The invention relates to the technical field of hoisting devices, and discloses a hoisting device for a ton bag truck and an operation method.The hoisting device for the ton bag truck comprises a traveling crane body, a hoisting mechanism, a hoisting mechanism and a hoisting mechanism, the electric push rod is located on the outer wall of the support, a movable frame is movably arranged in the support, and the electric push rod is used for pushing the movable frame to move in the support; and the moving mechanism is installed in the moving frame, the bottom of the moving mechanism is connected with a clamping mechanism, the moving mechanism is used for driving the clamping mechanism to move, and the clamping mechanism is used for clamping the ton bag. The moving frame, the moving mechanism, the clamping mechanism and the ton bag are driven by the electric push rod to reciprocate along the X axis; the double-end motor drives the threaded rod to rotate, then the sliding block, the clamping mechanism and the ton bag are driven to reciprocate along the Y axis, flexible adjustment of the placing position of the ton bag is achieved, and therefore the loading and unloading efficiency is improved, the manual operation risk is reduced, and the operation safety and convenience are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting devices, and particularly to a hoisting device for a ton bag truck and an operation method. Background Art

[0002] A ton bag is a flexible transportation packaging container, which has the advantages of moisture-proof, dust-proof, radiation-resistant, firm and safe, and has sufficient strength in structure. Since the handling and transportation of the flexible intermediate bulk container (FIBC) are very convenient and the handling efficiency is significantly improved, it has developed rapidly in recent years. The flexible intermediate bulk container is generally woven from polyester fibers such as polypropylene and polyethylene.

[0003] As described in CN117228499A, CN222431305U, etc., during the process of loading a ton bag onto a vehicle, a hoisting device is required to hoist the ton bag. The existing hoisting device cannot adjust the placement position of the ton bag. When people use the hoisting device, they cannot adjust the placement position of the ton bag according to the space requirements of the loading truck bed, and need to use manual methods to adjust, which increases the operation risk and wastes manpower, and is not convenient for people to use. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a hoisting device for a ton bag truck and an operation method, which solves the problem that the existing hoisting device cannot adjust the placement position of the ton bag according to the space requirements of the truck bed, resulting in the need to manually adjust the position of the ton bag during the loading process, increasing the operation risk, wasting manpower, and reducing the work efficiency.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A hoisting device for a ton bag truck, comprising:

[0006] A traveling vehicle body, on one side of which a winch is installed, and a bracket is arranged below, and the winch is connected to the bracket;

[0007] An electric push rod, which is located on the outer wall of the bracket, and a moving frame is movably arranged inside the bracket, and the electric push rod is used to push the moving frame to move inside the bracket;

[0008] A moving mechanism, which is installed inside the moving frame and is connected to a clamping mechanism at the bottom, the moving mechanism is used to drive the clamping mechanism to move, and the clamping mechanism is used to clamp the ton bag.

[0009] Preferably, the moving mechanism includes a double-headed motor, the double-headed motor is fixedly connected to the middle inside the moving frame, threaded rods are installed on both sides of the double-headed motor, the two threaded rods are respectively rotatably connected to both sides inside the moving frame, and sliders are threadedly connected to the outer walls of the two threaded rods, and the sliders are slidably connected inside the moving frame.

[0010] Preferably, the clamping mechanism includes a clamping motor installed inside the slider. A worm is installed at the output end of the clamping motor. Both sides of the worm are connected to worm wheels. Claw jaws are fixedly connected to the bottoms of both worm wheels, and the two worm wheels are respectively rotatably connected to both sides of the inner bottom of the slider.

[0011] Preferably, a guide rod is fixedly connected to the outer side of the middle of the top surface of the bracket. The guide rod is slidably connected to the traveling vehicle body, and a through hole is provided in the middle of the traveling vehicle body. The steel cable provided on the outer wall of the winch penetrates through the through hole.

[0012] Preferably, a partition board is fixedly connected to the middle of the bracket. A guide rod is fixedly connected to the top of the partition board. A support block is slidably connected to the outer wall of the guide rod, and the support block is fixedly connected to the moving frame.

[0013] Preferably, a guide wheel is rotatably connected to the outer wall of the moving frame. A concave plate is fixedly connected to the inner side wall of the bracket, and the guide wheel is located inside the concave plate.

[0014] Preferably, a clamping block is fixedly connected to the top of the outer wall of the slider. The clamping block is slidably connected to the inner top of the moving frame.

[0015] Preferably, a first laser rangefinder is installed on the inner side wall of the bracket for detecting the distance between one side of the slider and one side of the inner wall of the bracket. A second laser rangefinder is installed on the outer wall of the other side of the slider for detecting the distance between the outer wall of the other side of the slider and the other side of the inner wall of the bracket. A controller is installed on one side of the top surface of the traveling vehicle body, which is used to receive the data of the first laser rangefinder and the second laser rangefinder and control the movements of the winch, the clamping motor, the electric push rod and the double-headed motor.

[0016] Preferably, an adjustment algorithm is provided inside the controller. The adjustment algorithm is used to determine the position information of the slider inside the bracket based on the data of the first laser rangefinder and the second laser rangefinder, and then determine whether there is a center of gravity imbalance causing the ton bag to tilt based on the position information. When there is a center of gravity imbalance causing the ton bag to tilt, control the movements of the winch, the clamping motor, the electric push rod and the double-headed motor to adjust the position of the slider in the bracket.

[0017] An operation method of a hoisting device for a ton bag vehicle includes the following steps:

[0018] A. Move the traveling vehicle body so that the claw jaws are above the ton bag lifting lugs, and then drive the winch to release the steel cable to lower the bracket, so that the claw jaws approach the lifting lugs;

[0019] B. After the claw jaws are on both sides of the lifting lugs, drive the clamping motor to drive the worm to rotate, use the worm to drive the worm wheels on both sides to rotate, and further make the claw jaws on both sides approach each other and hook the lifting lugs;

[0020] C. Drive the winch to wind the steel cable to drive the bracket and the ton bag to move upward, realizing the lifting of the ton bag;

[0021] D. When moving the position of the ton bag, drive the output end of the electric push rod to extend or retract. The electric push rod can drive the moving frame, the moving mechanism, the clamping mechanism and the ton bag to reciprocate along the X-axis. After driving the double-headed motor to drive the threaded rod to rotate, at this time, the slider, the clamping mechanism and the ton bag can be driven to reciprocate along the Y-axis, so as to realize the purpose of adjusting the position of the ton bag.

[0022] The present invention provides a hoisting device and an operation method for a ton bag vehicle. It has the following beneficial effects:

[0023] 1. In the present invention, by driving the output end of the electric push rod to extend or retract, the moving frame, the moving mechanism, the clamping mechanism and the ton bag are driven to reciprocate along the X-axis; at the same time, the double-headed motor drives the threaded rod to rotate, so as to drive the slider, the clamping mechanism and the ton bag to reciprocate along the Y-axis, and the placement position of the ton bag can be flexibly adjusted according to actual needs, thereby improving the loading and unloading efficiency, reducing the risk of manual operation, and being able to optimize the placement angle of the ton bag according to the requirements of the truck bed space, enhancing the safety and convenience of the overall operation.

[0024] 2. In the present invention, by setting an adjustment algorithm inside the controller, the position information of the slider inside the bracket can be monitored in real time based on the data of the laser rangefinder. By accurately obtaining the position information, it can be judged whether the ton bag is tilted due to the imbalance of the center of gravity. Once the tilting situation is detected, the adjustment algorithm will automatically control the movement of the winch, the clamping motor, the electric push rod and the double-headed motor, so as to accurately adjust the position of the slider inside the bracket, ensure that the ton bag remains stable, prevent the tilting phenomenon, enhance the safety and reliability of the operation, effectively avoid manual judgment and adjustment, improve the intelligent level of the system, and ensure the smooth progress of the loading and unloading process. Description of the Drawings

[0025] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0026] Figure 2 is a partial structural split diagram of the bracket of the present invention;

[0027] Figure 3 is a partial structural split diagram of the partition of the present invention;

[0028] Figure 4 is a partial structural split diagram of the moving frame of the present invention;

[0029] Figure 5 is a partial structural split diagram of the slider of the present invention;

[0030] Figure 6 is a partial structural split diagram of the worm gear of the present invention;

[0031] Figure 7 Schematic diagram of the structure of the double-headed motor part of the present invention;

[0032] Figure 8 Front cross-sectional view of the bracket of the present invention.

[0033] Among them, 1, traveling vehicle body; 2, bracket; 3, winch; 4, clamping mechanism; 401, clamping motor; 402, worm; 403, worm gear; 404, jaw; 5, electric push rod; 6, moving frame; 7, moving mechanism; 701, double-headed motor; 702, threaded rod; 703, slider; 8, controller; 9, laser rangefinder I; 10, laser rangefinder II; 11, support block; 12, guide rod; 13, partition; 14, concave plate; 15, guide wheel; 16, guide rod; 17, block. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the specification of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] For a better understanding of the present invention, the above content will be described in detail below in conjunction with specific embodiments.

[0036] Please refer to the attached Figure 1 - attached Figure 8 , the embodiment of the present invention provides a hoisting device for a ton bag truck, including: a traveling vehicle body 1, on one side of which a winch 3 is installed, a bracket 2 is arranged below, and the winch 3 is connected to the bracket 2; an electric push rod 5, which is located on the outer wall of the bracket 2, a moving frame 6 is movably arranged inside the bracket 2, and the electric push rod 5 is used to push the moving frame 6 to move inside the bracket 2; a moving mechanism 7, which is installed inside the moving frame 6 and is connected to the clamping mechanism 4 at the bottom, and the moving mechanism 7 is used to drive the clamping mechanism 4 to move, and the clamping mechanism 4 is used to clamp the ton bag.

[0037] In this embodiment, by using the winch 3 to wind the steel cable, the bracket 2 can be driven to move, by using the electric push rod 5, the moving frame 6 can be driven to move inside the bracket 2, and by using the mechanism, the clamping mechanism 4 can be driven to move, and the clamping mechanism 4 can clamp the lifting lug of the ton bag. Therefore, through the winch 3, the electric push rod 5 and the moving mechanism 7, the hoisting of the ton bag and the adjustment of the position can be realized. Therefore, according to the space requirement of the loading truck bed, the placement position of the ton bag can be adjusted, avoiding the phenomenon of manual adjustment, increasing the operation risk and wasting manpower.

[0038] Please refer to the attachedFigure 3 - Attachment Figure 8 In this case, the mobile mechanism 7 includes a double-headed motor 701. The double-headed motor 701 is fixedly connected to the middle inside the mobile frame 6. Both sides of the double-headed motor 701 are provided with threaded rods 702. The threaded rods 702 on both sides are respectively rotatably connected to both sides inside the mobile frame 6. The outer walls of the threaded rods 702 on both sides are threadedly connected with sliders 703. The sliders 703 are slidably connected inside the mobile frame 6.

[0039] In this embodiment, after driving the double-headed motor 701, the threaded rod 702 can be driven to rotate. The threaded rod 702 can drive the slider 703 to move inside the mobile frame 6, so as to achieve the purpose of driving the clamping mechanism 4 to move.

[0040] Please refer to Attachment Figure 4 - Attachment Figure 8 The clamping mechanism 4 includes a clamping motor 401. The clamping motor 401 is installed inside the slider 703. The output end of the clamping motor 401 is provided with a worm 402. Both sides of the worm 402 are connected with worm wheels 403. The bottoms of the worm wheels 403 on both sides are fixedly connected with clamping jaws 404. The worm wheels 403 on both sides are respectively rotatably connected to both sides of the inner bottom of the slider 703.

[0041] In this embodiment, by driving the clamping motor 401, the worm 402 can be driven to rotate. The worm 402 can drive the worm wheels 403 on both sides to rotate, and further drive the clamping jaws 404 on both sides to approach or separate from each other. When the clamping jaws 404 on both sides approach each other, the lifting lugs of the ton bag can be clamped at this time. When the two are separated from each other, the clamping jaws 404 can loosen the lifting lugs at this time.

[0042] Please refer to Attachment Figure 1 - Attachment Figure 8 On the outer side of the middle of the top surface of the support 2, a guide rod 16 is fixedly connected. The guide rod 16 is slidably connected with the traveling vehicle body 1. A through hole is provided in the middle of the traveling vehicle body 1. The steel cable provided on the outer wall of the winch 3 passes through the through hole. A partition plate 13 is fixedly connected to the middle of the support 2. A guide rod 12 is fixedly connected to the top of the partition plate 13. A support block 11 is slidably connected to the outer wall of the guide rod 12. The support block 11 is fixedly connected to the mobile frame 6. A guide wheel 15 is rotatably connected to the outer wall of the mobile frame 6. A concave plate 14 is fixedly connected to the inner side wall of the support 2. The guide wheel 15 is located inside the concave plate 14. A clamping block 17 is fixedly connected to the top of the outer wall of the slider 703. The clamping block 17 is slidably connected to the inner top of the mobile frame 6.

[0043] In this embodiment, when the support 2 moves, the support 2 will drive the guide rod 16 to slide within the traveling vehicle body 1, thereby correcting the moving direction of the support 2. Moreover, the partition 13 can support the guide rod 12. At the same time, when the electric push rod 5 drives the moving frame 6 to move inside the support 2, at this time, the rollers will move within the concave plate 14, and the support blocks 11 will slide along the guide rod 12. Therefore, the moving direction of the moving frame 6 can be guided, and its moving stability can be increased.

[0044] A first laser rangefinder 9 is installed on the inner side wall of the support 2 for detecting the distance between one side of the slider 703 and one side of the inner wall of the support 2. A second laser rangefinder 10 is installed on the outer wall of the other side of the slider 703 for detecting the distance between the outer wall of the other side of the slider 703 and the other side of the inner wall of the support 2. A controller 8 is installed on one side of the top surface of the traveling vehicle body 1, which is used to receive the data of the first laser rangefinder 9 and the second laser rangefinder 10, and control the movements of the hoist 3, the clamping motor 401, the electric push rod 5, and the double-headed motor 701. An adjustment algorithm is set inside the controller 8. The adjustment algorithm is used to determine the position information of the slider 703 inside the support 2 based on the data of the first laser rangefinder 9 and the second laser rangefinder 10. Subsequently, based on the position information, it is determined whether there is a center of gravity imbalance causing the ton bag to tilt, and when there is a center of gravity imbalance causing the ton bag to tilt, the movements of the hoist 3, the clamping motor 401, the electric push rod 5, and the double-headed motor 701 are controlled to adjust the position of the slider 703 in the support 2.

[0045] In this embodiment, in order to realize the real-time monitoring and dynamic adjustment of the posture of the ton bag during hoisting and handling, so as to avoid the problems of tilting or instability caused by the center of gravity deviation, therefore, by combining sensor ranging, adjustment control logic, and actuator linkage, the intelligent perception and feedback adjustment of the overall position of the clamping mechanism 4 and the ton bag are realized.

[0046] Moreover, it operates in coordination with the aforementioned electric push rod 5 drive device and the X-axis and Y-axis adjustment mechanisms driven by the double-headed motor 701, further improving the accuracy and safety during the ton bag hoisting process. After the hoisting is completed or during the hoisting process, the system will continuously monitor the position state of the slider 703 relative to the inside of the support 2, and then judge whether there is an abnormal posture or center of gravity deviation of the ton bag, and adjust the actions of the relevant actuators accordingly.

[0047] Specifically, a first laser rangefinder 9 is provided on the inner side wall of the support 2, which is used to detect the first distance between the outer wall of one side of the slider 703 and the inner wall of the support 2, denoted as D1. At the same time, a second laser rangefinder 10 is installed on the outer wall of the other side of the slider 703, which is used to detect the second distance between this side and the inner wall of the support 2, denoted as D2. Generally, when the slider 703 is in the center position inside the support 2, the distances between its two sides and the inner wall of the support 2 should be basically equal, that is, it satisfies:

[0048] |D1 - D2| ≤ ε;

[0049] Where ε is an admissible deviation value, which is set according to specific implementation requirements. For example, it can be a fixed value within the range of 100 cm to 200 cm or an adaptive threshold.

[0050] Specifically,

[0051] When there are significant differences in the data collected by the first laser rangefinder 9 and the second laser rangefinder 10, that is:

[0052] |D1 - D2| > ε;

[0053] The controller 8 then determines that the slider 703 has shifted within the bracket 2, and further infers that the tilting during the lifting process may be caused by the offset of the center of gravity of the ton bag.

[0054] As an option, combining the spatial position information of the current clamping mechanism 4, that is, the lateral position X, the longitudinal position Y, and the lifting height h of the winch 3, to achieve multi-dimensional judgment of the clamping state and output of control decisions.

[0055] In a possible implementation manner, the adjustment algorithm can adopt a proportional-derivative (PD) control strategy, and its control output ΔP can be expressed as:

[0056]

[0057] Where K p is the proportional gain factor, reflecting the direct influence degree of the current deviation on the adjustment amount; K d is the derivative gain factor, used to suppress the rapid fluctuations during the adjustment process; D1 and D2 are the distances between the side walls of the bracket 2 and both sides of the slider 703 in real-time feedback of the laser rangefinder; is the time derivative of the difference between the two distances, representing the deviation change rate.

[0058] In some embodiments, the adjustment algorithm can also be extended to a proportional-integral-derivative (PID) control form including an integral link:

[0059]

[0060] Where K i is the integral gain, which is the accumulation of the error, representing the accumulation of the error over time; the integral part of the error, represents the accumulation of the error from time 0 to the current moment t; is the derivative of the error, representing the change rate of the error over time; e(t) is the error term.

[0061] Where the error term is defined as:

[0062] e(t) = D1(t) - D2(t);

[0063] This form is applicable to usage scenarios with high requirements for system dynamic characteristics and large fluctuations in the weight of the ton bag. The proportional term provides the current response, the integral term eliminates the steady-state deviation, and the derivative term is used for the early correction of the dynamic response.

[0064] Therefore, through the design of the above control algorithm, the dynamic attitude balance adjustment of the slider 703 and the ton bag can be achieved, improving the stability and safety margin of the hoisting process and avoiding risks of tilting, collision, or falling caused by the offset of the center of gravity of the ton bag.

[0065] This embodiment also provides an operation method for a hoisting device for a ton truck, including the following steps:

[0066] A. Move the traveling vehicle body 1 so that the clamping jaws 404 are above the ton bag lifting lugs, and then drive the winch 3 to release the steel cable to lower the bracket 2, so that the clamping jaws 404 approach the lifting lugs;

[0067] B. After the clamping jaws 404 are located on both sides of the lifting lugs, drive the clamping motor 401 to drive the worm 402 to rotate, and use the worm 402 to drive the worm wheels 403 on both sides to rotate, thereby making the clamping jaws 404 on both sides approach each other and hook the lifting lugs;

[0068] C. Drive the winch 3 to wind up the steel cable to drive the bracket 2 and the ton bag to move upward to lift the ton bag;

[0069] D. When moving the position of the ton bag, drive the electric push rod 5 to extend or retract the output end. The electric push rod 5 can drive the moving frame 6, the moving mechanism 7, the clamping mechanism 4, and the ton bag to reciprocate along the X-axis. After driving the double-headed motor 701 to drive the threaded rod 702 to rotate, the slider 703, the clamping mechanism 4, and the ton bag can be driven to reciprocate along the Y-axis at this time, thereby achieving the purpose of adjusting the position of the ton bag.

[0070] Working principle: During use, first move the traveling vehicle body 1 to move the clamping jaws 404 above the ton bag lifting lugs, and then drive the winch 3 to release the steel cable to lower the bracket 2. At this time, the clamping jaws 404 approach the ton bag lifting lugs to prepare for clamping;

[0071] When the clamping jaws 404 are located on both sides of the lifting lugs, drive the clamping motor 401 to drive the worm 402 to rotate, and the worm 402 further drives the worm wheels 403 on both sides to rotate, so that the clamping jaws 404 on both sides approach each other and then hook the lifting lugs;

[0072] When the clamping jaws 404 clamp the ton bag lifting lugs, drive the winch 3 to start winding up the steel cable to lift the bracket 2 and the ton bag together, thus completing the hoisting process of the ton bag;

[0073] When it is necessary to adjust the position of the ton bag, the driving electric push rod 5 extends or retracts its output end. At this time, the movable frame 6 can be driven to move. At this time, the guide wheel 15 will roll inside the concave plate 14, and the support block 11 will slide along the guide rod 12, so that the movable frame 6, the moving mechanism 7, the clamping mechanism 4 and the ton bag reciprocate along the X-axis. At this time, the position of the ton bag on the X-axis can be adjusted.

[0074] At the same time, the driving double-headed motor 701 drives the threaded rod 702 to rotate, which can drive the slider 703, the clamping mechanism 4 and the ton bag to adjust their positions along the Y-axis. Therefore, through the two-way movement of the X-axis and the Y-axis, the position of the ton bag can be flexibly adjusted to ensure its accurate placement and meet the requirements of the loading truck bed space.

[0075] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hoisting device for a ton truck, characterized in that, Including: A hoisting vehicle body (1), on one side of which a winch (3) is installed, and a bracket (2) is arranged below, and the winch (3) is connected to the bracket (2); An electric push rod (5), which is located on the outer wall of the bracket (2), a movable frame (6) is movably arranged inside the bracket (2), and the electric push rod (5) is used to push the movable frame (6) to move inside the bracket (2); A moving mechanism (7), which is installed inside the movable frame (6), and a clamping mechanism (4) is connected to the bottom, the moving mechanism (7) is used to drive the clamping mechanism (4) to move, and the clamping mechanism (4) is used to clamp the ton bag.

2. The hoisting device for a ton truck according to claim 1, characterized in that, The moving mechanism (7) includes a double-headed motor (701), the double-headed motor (701) is fixedly connected to the middle inside the movable frame (6), threaded rods (702) are installed on both sides of the double-headed motor (701), the two threaded rods (702) are respectively rotatably connected to both sides inside the movable frame (6), and sliders (703) are threadedly connected to the outer walls of the two threaded rods (702), and the sliders (703) are slidably connected inside the movable frame (6).

3. The hoisting device for a ton truck according to claim 2, characterized in that, The clamping mechanism (4) includes a clamping motor (401), the clamping motor (401) is installed inside the slider (703), a worm (402) is installed at the output end of the clamping motor (401), both sides of the worm (402) are connected with worm wheels (403), clamping jaws (404) are fixedly connected to the bottoms of the two worm wheels (403), and the two worm wheels (403) are respectively rotatably connected to both sides of the inner bottom of the slider (703).

4. A hoisting device for a ton truck according to claim 1, characterized in that, A guide rod (16) is fixedly connected to the outer side of the middle of the top surface of the bracket (2), the guide rod (16) is slidably connected to the hoisting vehicle body (1), and a through hole is arranged in the middle of the hoisting vehicle body (1), and the steel cable arranged on the outer wall of the winch (3) penetrates through the through hole.

5. The hoisting device for a ton truck according to claim 1, wherein A partition plate (13) is fixedly connected to the middle of the bracket (2), a guide rod (12) is fixedly connected to the top of the partition plate (13), a support block (11) is slidably connected to the outer wall of the guide rod (12), and the support block (11) is fixedly connected to the movable frame (6).

6. The hoisting device for a ton truck according to claim 1, wherein A guide wheel (15) is rotatably connected to the outer wall of the movable frame (6), a concave plate (14) is fixedly connected to the side wall inside the bracket (2), and the guide wheel (15) is located inside the concave plate (14).

7. The hoisting device for a ton truck according to claim 2, characterized in that, A block (17) is fixedly connected to the top of the outer wall of the slider (703), and the block (17) is slidably connected to the inner top of the movable frame (6).

8. The hoisting device for a ton truck according to claim 1, wherein A laser rangefinder one (9) is installed on the inner side wall inside the bracket (2) for detecting the distance between one side of the slider (703) and one side of the inner wall of the bracket (2). A laser rangefinder two (10) is installed on the outer wall of the other side of the slider (703) for detecting the distance between the outer wall of the other side of the slider (703) and the other side of the inner wall of the bracket (2). A controller (8) is installed on one side of the top surface of the traveling vehicle body (1), which is used to receive the data of the laser rangefinder one (9) and the laser rangefinder two (10) and control the movements of the winch (3), the clamping motor (401), the electric push rod (5) and the double-headed motor (701).

9. The hoisting device for a ton truck according to claim 8, characterized in that, An adjustment algorithm is set inside the controller (8). The adjustment algorithm is used to determine the position information of the slider (703) inside the bracket (2) based on the data of the laser rangefinder one (9) and the laser rangefinder two (10). Subsequently, it determines whether there is a center-of-gravity imbalance causing the ton bag to tilt based on the position information, and when there is a center-of-gravity imbalance causing the ton bag to tilt, it controls the movements of the winch (3), the clamping motor (401), the electric push rod (5) and the double-headed motor (701) to adjust the position of the slider (703) in the bracket (2).

10. An operating method of a hoisting device for a ton truck, based on the hoisting device for a ton truck according to any one of claims 1-9, characterized in that, It includes the following steps: A. Move the traveling vehicle body (1) so that the gripper (404) is above the ton bag lifting lug, and then drive the winch (3) to release the steel cable to lower the bracket (2) so that the gripper (404) approaches the lifting lug; B. After the gripper (404) is located on both sides of the lifting lug, drive the clamping motor (401) to drive the worm (402) to rotate, and use the worm (402) to drive the worm wheels (403) on both sides to rotate, so that the grippers (404) on both sides approach each other and hook the lifting lug; C. Drive the winch (3) to wind up the steel cable to drive the bracket (2) and the ton bag to move upward to lift the ton bag; D. When moving the position of the ton bag, drive the electric push rod (5) to extend or retract the output end. The electric push rod (5) can drive the moving frame (6), the moving mechanism (7), the clamping mechanism (4) and the ton bag to reciprocate along the X-axis. After driving the double-headed motor (701) to drive the threaded rod (702) to rotate, the slider (703), the clamping mechanism (4) and the ton bag can be driven to reciprocate along the Y-axis at this time, so as to achieve the purpose of adjusting the position of the ton bag.

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